ict and fct test

der in deutschland und der schweiz führende hersteller von automatischen testsystemen für den in-circuit test ict und funktionstest fkt zum prüfen von elektronischen geräten, flachbaugruppen, modulen und hybriden bietet das breiteste spektrum an testlösungen für die qualitätssicherung in der elektronik - vom testsystem bis zum prüfadapter, von … Arcadia Test is a premiere manufacturer of In-Circuit Test Fixtures (ICT), Functional Testers (FCT) and other Automated Test Equipment (ATE) and PCB Test Fixtures 408-855-8268 Contact Us The Local Test Solution Provider, Jigs and Pallet Supplier. Strain gage or Strain Guage Measurement Service in Malaysia. FCT tester or functional tester in Malaysia. ICT fixture tester or in-Circuit test in Malaysia. ALL About Tests. Made in Malaysia. Call +60162120010 or Email to johnny.tan@prius.my fct测试系统概述： 系统以研华公司的IPC-610工控机为主控部分，集成安捷伦、泰克、艾德克斯、固纬、 NI等品牌仪器构建弹性且高精确度的测试平台，并内含relay matrix回路切换功能，主要对产品进行功能测试如：烧录程序、电压 FCT Machine (Functional Circuit Test) FCT refers to the test method that provides the simulated operating environment to the test target board, so that it can work in designed states to obtain the parameters of each state to verify the function of the UUT. Generally refers to the functional test of PCBA. Features PCBA ICT test function：. ICT is a standard test method for inspecting manufacturing defects and poor components by testing the electrical performance and electrical connections of on-line components. It mainly checks on-line single components and open and short circuit of each circuit network. It has the characteristics of simple operation App Vay Tiền Nhanh. You are hereHomeBlogsRob Putala's blog September 11, 2014As manufacturing processes improve and circuitry has moved from discrete components to highly-integrated programmable components, effective test strategies must now place more emphasis on functional test rather than in-circuit test ICT.In-circuit test performs a “schematic verification” by testing individual components of a printed circuit board PCBA one at a time by comparison against a software model of some parameters of the component. It is not done “at speed” and does not verify interoperability but is very effective at finding manufacturing excels atLocating manufacturing defects such as solder shorts, missing components, wrong components, and open many tests without power applied to the device under test DUT, thus avoiding most conditions that could damage an test programming effort as the programming consists of concatenating software component models and switching test instruments onto each part via a bed-of-nails BON shortcomings areTest fixtures tend to be expensive due to the need for an electrical connection to each electrical node of the circuit. Hundreds of spring action pins pogo pins are often ICT does not test continuity through connectors, so connector faults are often not identified. Functional test FCT verifies that a PCB assembly functions properly by providing stimulus to an assembly and verifying the tests are designed to assure that circuitry functions within specifications. Testing is usually done “at speed” through DUT connectors and/or BON fixture. The number of pogo pins typically needed for a functional test fixture is significantly less than an ICT excels atIdentifying functional defects within a printed circuit board assemblyAssessing functionality while applying marginal power supply voltage and/or currentAppraising functionality of DUT while applying a range of input stimuli amplitudes or currentsDetermining DUT power consumption during operationUncovering problems with analog circuitry such asWrong oscillator frequencyAnalog signal clipping/distortionAmplifier gain or bandwidth issuesDrive currents of power output circuitsPotentiometer adjustment issuesRevealing issues with digital circuitry such asSignal timing design or component relatedCommunications problems Ethernet, DeviceNet, Serial, etcFCT shortcomings areTest programs require a thorough understanding of the DUT performance, thus programming costs are typically higher that ICT. But, graphical programming significantly reduces the cost to implement functional often utilizes high speed instrumentation to characterize signals from the DUT. High speed equipment is more expensive than instrumentation intended for low speed through connectors can cause reliability issues as connectors wear. Bloomy mitigates this with sacrificial interposer cables. Category Tags Rob Putala's blog ICT tester test fixture and fct test fixture are both a classification of test fixtures. Different test fixtures have different test functions. What are the functions of ICT and FCT test? What is the difference? The following is a small series for everyone to explain. .First, ICT test fixture1. Can quickly check out the assembled circuit board PCB on the device, whether it is within our design can quickly find the location of poor soldering, such as missing parts, wrong parts, open short circuit, reverse, continuous welding and other can print out the above faults and bad specific information for the reference of maintenance personnel, effectively reduce the dependence of maintenance personnel on technology, do not need to understand the product schematic, still have the ability to is mainly suitable for1, into a batch of boards cause each type of board needs to have a corresponding fixture;2. A board with a high added value and a fixed value;FCT is a functional test fixture, mainly for testing the function of the product. Its main test object is PCBA circuit board. PCBA needs to test its various performances through different fixtures. The FCT test fixture is mainly for PCBA. Tests after power-on include test items such as voltage, current, power, power factor, frequency, duty cycle, brightness and color, character recognition, voice recognition, temperature measurement, pressure measurement, motion control, FLASH and EEPROM programming. .The FCT desktop computer function test fixture is a mechanical auxiliary device used to test whether a desktop computer has reached the original designer's purpose by testing a certain process in the semi-finished product/finished product or production process. The functional test fixture is applied. Analog, digital, memory, RF, and power circuits require corresponding functional test fixtures for each is the difference between ICT tester and FCT test fixture? Summary ICT test fixture is mainly to test the performance of all aspects of online components. The purpose of the test is to check the defects and some bad components in the production process. The object it tests is semi-finished and the FCT test fixture is mainly for functional testing of the finished PCBA. The FCT fixture is mainly a test method that simulates the working environment of the product and puts the product in working state to detect its various states to verify the function of the target board. Both ICT test fixtures and FCT test fixtures are used in the production line of electronic products. An FCT test, also known as a functional circuit test, is a type of examination conducted on printed circuit boards PCBs during the production process. This test aims to detect any shorts or separate circuits in the Printed circuit board and confirm that the board performs as intended. FCT is a critical quality assurance component for printed circuit boards, generally carried out after the soldering fusing process has been completed. PCBs are vital to many industries as they enable electronic components to be connected through conductive pathways. These pathways are created by laminating copper sheets onto the circuit boards, enabling electric current to flow. In this way, PCBs have become the foundation for various electronic devices used across numerous industries. Functional testing of printed circuit boards PCBs is a vital part of their production. These tests, conducted after the manufacturing process has been completed, ensure that the PCBs will function properly before they are released to the market. The functional testing of PCBs represents the final step between manufacturing production and the market. Printed circuit board functional testing is used to verify that a printed circuit board PCB functions correctly. If you are interested in learning more about functional testing and want additional information on the subject, you can search for more details about PCB functional testing. Design of FCT Testing PCB One way to prioritize DFT Design for Test early on in the development process is by integrating the printed circuit board prototype model design with FCT Functional Circuit Testing. A popular FCT method is the bed-of-nails structure, which comprises pogo pins positioned to connect with test points on the bottom of the printed circuit board. This approach has several benefits compared to other methods of accessing the circuitry during the early stages of development. While it is possible to access specific points through soldered wires, this method may require a highly proficient technician and may also risk damaging costly components. Utilizing a pin board, on the other hand, allows for multiple uses without causing any harm to the components. Fixture Design Of FCT Testing PCB A bed-of-nails functional circuit test with a high density of test points can be beneficial during the early design stages for crucial subsystems. One benefit of this approach is that the pogo pins are usually arranged in a grid pattern, which allows for using a standard pogo pin board alongside separate control boards. This means that it is possible to make any changes to the control boards without having to alter all of them. As a result, the designer can utilize the same pogo pin pad in the overall prototyping process. As the size of PCBs continues to decrease, it becomes increasingly difficult to utilize bed-of-nails testing, particularly when it comes to precise alignment. To mitigate this issue, it can be helpful to carefully plan the placement of test points at the outset of the design process. One way for designers to ensure proper alignment of pin boards with the device under test is to cover test points with a sheet of thin tape. When the taped board is placed in the fixture, the pins will press against the tape and create indentations at the contact points. This method allows designers to verify the arrangement of the pins and make any necessary adjustments. Additionally, adding headers to FCT control boards with breakouts provides for measurement of connections with the printed circuit board under test while in the fixture. Designers often utilize a bottom-up design approach when assembling a pinboard with a particular Printed Circuit Board PCB assembly, allowing for more efficient testing and optimal alignment. A press fixture designed to accommodate this type of design can be handy; it allows for even pressure to be applied and ensures that all test points on the printed circuit board under test make good contact. Importance of FCT Testing PCB The PCB manufacturing process includes FCT to verify that the boards function correctly and do not have any defects. By conducting this test, potential issues with the PCB can be detected and addressed before they are shipped to the customer, ultimately saving money and time. Requirements for functional testing PCB To perform functional testing, a test fixture is necessary for securing the PCB during the testing process, probe cards are used to establish a connection between the test equipment and the PCB, and specialized test software allows for control over the testing procedure and data collection. Benefits OF FCT Testing PCB Or Functional Tests Other functional testing methods include the hot mock-upsimulatedtest, which confirms that the PCB is functioning correctly. More comprehensive functional testing may involve subjecting the printed circuit boardPCB assembly to various operational tests across multiple conditions. Functional testing has many advantages such as Instead of using costly and actual testing equipment, functional testing of a PCB assembly can be done by creating a simulated operating environment. This not only saves the customer money but also allows for efficient utilizing this approach, costly system tests can be avoided, ultimately saving the customer both financial resources and the use of this testing method, it is feasible to test a significant portion of the product, ranging from 50-100%, before it is shipped to the customer. This can significantly reduce the effort and time required for the customer to test and troubleshoot the PCB professionals can utilize a functional test to extract the highest level of productivity, making it the most effective form of testing besides a complete system test testing, in conjunction with ICTInformation and Communications Technologyand in-circuit tests, can help ensure that a PCB assembly is error-free and more durable. Using FCT Testing PCB Functional testing allows for the simulation or emulation of a product’s operational environment to verify its proper functioning. This may include using devices that interact with the PCB assembly being tested, such as testing the efficient performance of a power supply with essential loads. Functional testing involves exposing a PCB printed circuit board assembly to a series of signals at different power levels and observing the responses to verify proper functioning. The customer often specifies the sequence, procedure, and test method. Through functional testing, it’s possible to identify issues such as parametric failures, incorrect component values, and breakdowns. Functional tests can be automated by production line operators using test software or firmware and computers. These tests may utilize instruments such as communication ports, digital millimeters, and IO boards. They may involve software and fixtures that connect various devices to the PCB assembly being tested. Firmware for testing purposes is developed by engineers using programming languages such as Java, C, or Perl. This firmware is then run on a computer, which sends commands to a controller. The board being tested is then checked against certain specifications by the receiving test panel to determine if it passes or fails. To ensure the reliability and effectiveness of our printed circuit board model and assembly operations, we prioritize functional testing for our customers. This allows us to adapt to the diverse needs of our client base, as we offer a broad range of PCB products to a varied group of customers. With a wealth of knowledge, expertise, and experience at our disposal, we can accommodate the unique requirements of each customer. Additional FCT Testing PCB In addition to the functional circuit test, there are various significant tests for printed circuit boards, such as 1. Micro-sectioning analysis By slicing open the printed circuit board, one can scrutinize its internal structure and identify any potential issues. While this method may harm the board, it can reveal valuable insights about the assembling process that cannot be obtained through other means. For instance, the technician can detect gaps in the soldering or determine if the copper wires are insufficiently thin. 2. FCT Test–X-ray inspection A non-invasive method, this technique employs high-voltage X-rays that pass through the printed circuit board and cast a shadow on the film or a digital sensor. By utilizing this method, we can uncover internal features like gaps in soldered connections and external elements like misaligned or absent components. 3. FCT Test–PCB Contamination Test To check for the presence of outside particles on the crust of the printed circuit board, a contamination test can be performed. These particles can potentially lead to electrical faults or signal quality issues, so it is essential to identify them. A dust wand is a standard tool used for this purpose. 4. PCB solderability test The purpose of a solderability test is to assess whether the printed circuit board can be soldered. This is critical because if the PCB cannot be soldered, It will not function. One common way to conduct this test is by using a soldering tool. 5. FCT Test points Now that the functional circuit test fixture has been covered, let’s delve into the test points. These are the specific locations on the PCB where voltage measurements can be taken, and they are often utilized to link various elements of the functional circuit test. A black or red dot generally identifies test points. 6. FCT Test–ICT test This section focuses on the ICTInformation and Communication Technology test, designed to detect any short circuits between the many tracks on a PCB. The test involves applying high voltage in one way and determining the voltage in another. If a short is present, the electromotive forcevoltagewill be less than expected. The Information and Communication Technology test is crucial as it can identify shorts that cannot be seen with the naked eye. These shorts can lead to various issues, so it’s essential to ensure that your printed circuit board passes the ICT test. Conclusion Performing a Printed circuit board FCT test is vital during the manufacturing process of printed circuit boards PCBs. This test ensures that the boards function correctly and are free of errors or defects. If you’re searching for a reputable PCB manufacturer, it’s a good idea to inquire about their testing processes and whether they include an operational test of the boards. At our company, we prioritize quality and always have a full PCB functional circuit test in our fabrication processes. Related posts The Differences Between Wire Harness cable Assembly and Cable Assembly What is a Wire Harness Assembly? Why Choose POE PCB For Quick Turn Prototype? PCB Soldering Techniques What Soldering Equipment You Need OP297GSZ An Instrumentation Amplifier with a General-Purpose Design In-Circuit Testing ICT is an established method of analysing an electronic product in production. Typically, a bed-of-nails approach is used to test a non-powered circuit board and techniques such as Direct Digital Synthesis DDS and Discrete Fourier Transform DFT are used to generate stimulus signals and to perform analogue measurement analysis. This allows the In-Circuit Analyser ICA to measure real-world attributes such as inductance, capacitance, impedance and resistance to check if all of the Device Under Test DUT test node results are within tolerance and if any component is open, shorted, incorrect or misoriented, all without having to power up the DUT. The interconnection between the nail contacts and the relevant analogue channel or digital Driver/Sensor D/S on the pin board is accomplished by using a relay multiplexer Figure 1. Figure 1 Typical bed-of-nails 2x16 relay multiplexer only one channel shown in the diagram In some more advanced systems, the ICA module can also be used to carry out limited functional component testing FCT by applying power to the device and measuring the input and output characteristics under load. More often, this test is done separately with a second test adapter. There are several practical reasons for doing this Firstly, the ICT bed-of-nails probes are not rated to carry the necessary supply voltage or load current to carry out a full function test on powered-up devices. A dedicated FCT test-bed will have heavy-duty contacts designed to carry higher currents or voltages without overheating, arcing or suffering from excessive wear. The disadvantage is that these heavy-duty contacts take up more space and therefore FCT test adapters typically check only one DUT at a time. Secondly, the ICA internal programmable power supplies, relays and electronic loads are also not designed for high current testing. If the power supply units are simply swapped out for more powerful versions, the higher current can cause serious interference problems with the sensitive ICT analogue measurements, including introduction of measurement inaccuracies due to ground-bounce, voltage drop along wiring and through transients generated from switching inductive loads. The measurements carried out in a dedicated FCT adapter are usually lower resolution with heavier filtering, so they are less sensitive to interference. Also, the power supplies and relay contacts are more robust and able to switch more than one amp. Thirdly, the relay interface hardware and software control used to change the relay configuration is typically via a Parallel Input Output PIO controller and relay driver Figure 2. For ICT applications, the relay switching speed is not usually an issue as the relays are mainly reconfigured at the end of each DUT test to multiplex connections from one pin assembly to the next. However, in an FCT test adapter, the relays are used to change the functional test setup for each separate test on each DUT, so the control data throughput to the relays is higher. In a dedicated FCT set-up, this is not an issue as only one DUT is checked at a time, but if multiple devices are going to be tested in a combined ICT/FCT adapter, then the speed limitation of the relay control is a major bottleneck. Figure 2 Test System Block Diagram Finally, while ICT measurements can be made in milliseconds, FCT procedures are typically much slower as measurements made while the unit is powered up cannot be made instantaneously; the outputs have to settle before a reliable measurement can be taken. Typically, the FCT process will take five to ten times as long as ICT to complete for the same product. If the testing is combined in one ICT/FCT platform, then the FCT part could be a bottleneck in production. If the two processes are separated, then one ICT machine could feed several FCT testbeds used in parallel to increase the throughput and reduce the bottleneck. Nevertheless, for a newly developed DC/DC product series developed by the Austrian company Recom Power, the additional cost and testing time for two separate test adapters was not acceptable. A way had to be found to combine the high speed advantage of ICT with the practical quality assurance of 100% functional testing, all in one test adapter. This was technically a complex challenge the product series covered devices with up to 6A output current and input voltages up to 60V. Each PCB panel contained forty partly-finished modules which meant that parallel testing was required using heavy-duty power supplies. The data throughput was therefore not only very high but any timing errors could be problematic. Recom contracted Elmatest in the Czech Republic to build a combined ICT/FCT test adapter for the Teledyne Teststation LH used by the EMS provider. From the beginning, Zdenek Martinek, the application engineer at Elmatest, realised that this was no ordinary project. There were several significant problems that needed to be solved how to combine ICT/FCT in one multi-panel, how to handle the high relay control throughput, how to accelerate the FCT process and how to cope with the high power levels without harming the sensitive probes. In close co-operation with Markus Stöger from Recom’s R&D department, a solution was found for all of these issues. The first problem that needed to be solved was how to combine ICT/FCT in the multi-panel design of the product. Each PCB contained 40 independent circuits. These modules were not part-built, but complete products, already finished, cased and screen printed and not all of the internal nodes were accessible to the ICT pin panel. This was deliberate. The DC/DC converter switches at high internal frequencies and it is integral to the product concept that the metal case and its multi-layer PCB forms a complete six-sided faraday cage to avoid EMI issues. Any external connections to an internal high frequency switching node would form a pathway for EMI to pass through the EMC seal and to radiate, possibly causing measurement errors. The solution to “How to ICT test an enclosed and inaccessible product?” was to create a test module on each multi-panel. The test module allows access to all of the ICT nodes necessary on the test module to verify that each panel is built correctly. Once the conventional ICT procedure is carried out on the test module, then the remaining modules need be FCT-checked only. Figure 3 Top and bottom images of the multi-panel PCB showing the ICT test module in the corner. The code required to carry out a single test and measurement process is called a test vector. The arrangement of the inputs, outputs and analogue channel configurations required to carry out the measurement is transmitted as a data burst’. These configurations are loaded into local on-board memory and then simultaneously activated by a timing strobe signal. This configuration is then latched until the test has been completed and the measurement data has been transferred back to the CPU. However, in the meantime, the next data burst can be pre-loaded into the registers to await the next strobe signal. This methodology is what allows ICT to achieve its very fast throughput of around 4µs per vector. However, the standard relay drivers used in the GenRad Teststation are driven from the Parallel Input/Output PIO controller which in turn is given commands from the controlling PC via a MXIbus Figure 2. This arrangement proved to be too slow for our project where we want to process different FCT measurements within a single test vector using the high speed System Controller to control the relay configuration. In order to accelerate the relay switching rate, a novel relay driver topology was implemented in the Recom test adapter, based on a technique called active burst’. In active burst, some of the relays are not driven from the PIO controller card, but driven directly from the D/S outputs which are kept active until the ICA measurements have been completed. Each D/S can be configured with 9 separate functions Idle, Drive low or high, Sense low or high, Hold, Drive with deep serial memory, Sense with deep serial memory and Collect CRC data, so in our case, we used the Drive function to directly power the relays. The D/S Drive output is limited to TTL voltage and current levels, normally not sufficient to operate a relay without a separate driver, but by building the test adapter using Darlington transistor current amplifier relay coils, the D/S modules were able to operate the relays directly, bypassing the PIO controller. This made the relay control practically instant and made the coding much simpler. The second problem that needed to be solved was how to accelerate the FCT part of the test; waiting for the analogue levels to settle would have made the overall testing still unacceptably slow. The technique used here was to use the processing power already inherent in the ICA system. Waveform generation and analysis techniques such Direct Digital Synthesis DDS and Discrete Fourier Transform DFT were used, which are inherently faster than any analogue bridge balancing measurement technique. The breakthrough was to realise that these same advanced techniques could also be used to determine the powered-up functional testing results. Instead of applying a fixed load, waiting for the output to stabilise and then measuring the input and output currents and voltages, the output load could be pulsed for a few milliseconds and the processed results used to derive the final output characteristics. This reduced the measurement time by up to 80%. Figure 4 6-Terminal Impedance Measurement One significant development issue was matching such dynamic load and supply switching with the ancient “spaghetti” software used in the GenRad test station, which is a mix of Pascal, Assembler and Basic. However, although GenRad ceased to exist as a separate company back in 2003, it is a tribute to the robustness of the design that even today it is possible to piggy-back state-of-the-art operating systems on top of the original hardware. The solution to the second problem also solved the third problem how to avoid damaging the sensitive probes. As the load current was pulsed only for a very short time, there was no noticeable local heating at the very fine contact area, even with 6A peak current through a probe rated at only two amps. The on-time/off-time ratio could also be programmed so that even with sequential measurements, the probe tip had time to cool down between pulses and would not burn or scorch. This pulsed load technique also meant that the power supplies were not overloaded. ICT is also used to measure the internal voltage divider resistances used to pre-set the output voltage, allowing the test system to automatically derive the output voltage, output current and input voltage range from ICT and then pass these values on to the FCT test program so that the appropriate functional testing can be carried out. This eliminates the possibility of operator error setting the FCT variables out-of-range and damaging either the product or the expensive pin boards or programmable power supplies. The net result of all of these techniques is a combined ICT/FCT test time of between and seconds per DC/DC module, meaning that a complete PCB multi-panel can be 100% tested in less than 80 seconds, including removal of the tested PCB and placement of the next PCB to be tested into the test adapter. With a minimum production run of 5000, the cumulative time-saving has been instrumental in the resulting success of the entire product series. So much so, that the initial design of the RPM module has now been extended from a single series with eight variants to three different series with a total of twenty-two variants, all sharing the same footprint and test adapter. Figure 5 The finished test adapter in action RECOM We Power your Products What is the FCT test? This is a question that you may have if you are new to PCBs. In this comprehensive guide, we will introduce you to the FCT test and explain what you can use it. FCT test is a key component of quality control in the PCB manufacturing process. And it is essential that your PCB manufacturer performs this test on every batch of boards they produce. We will discuss the benefits of FCT testing and explain how it can help improve the quality of your PCBs. What is FCT in PCB?/What is the ICT electronics test? Multimeter probes examining a computer circuit board FCT test, or functional circuit test, is a type of testing performed on PCBs during the manufacturing process. And this test checks for shorts and open circuits in the PCB and verifies that the board is functioning correctly. In addition, FCT is an important step in quality control for PCBs, and it typically gets performed after the soldering process. Why is FCT important? Oscilloscope Probe on Electronic circuit FCT is important because it helps ensure that the PCBs function correctly and there are no manufacturing defects. Besides, this test can identify problems with the PCB before shipping to the customer, which can save time and money. What is required for functional testing?? For functional testing, you will need a test fixture, probe cards, and test software. The test fixture is for holding the PCB in place during testing. And we use the probe cards to connect the test equipment to the PCB. Besides, you can use the test software to control the testing process and collect data. Benefits of Performing FCT for Your PCB Assembly Female digital electronic engineer testing computer PC motherboard in laboratory There are some benefits of the FCT test for your PCB assembly. First and foremost, FCT can improve product quality by detecting functional defects early in the manufacturing process. Secondly, It allows you to make changes to the design quickly and easily without incurring high costs. Lastly, FCT can save time by identifying potential problems with the PCB before shipping it to the customer. Classification of Functional Test Pcb layout repairing technician soldering laptop There are some different FCT tests for pcb functions. FCT is a process of testing, identifying, and isolating defects in an assembled printed circuit board. Besides, It helps to improve the reliability of the board and to verify compliance with the electrical specifications. Firstly, different controllers. Then we can classify it into in-circuit testICT, functional boundary scan testBST, and off-board functional tests. Secondly, different controllers. We will classify it into PC controller analog FCT, MCU controller, PLC Controller, and Embedded CPU controller. Thirdly, by control modes’ difference. There is a fully automatic control function test, manually control functional tests, and a semi-automatic control function test. Other Different PCB Testings Technician in the lab testing a circuit board with a multimeter Besides the FCT test, there are other important tests for PCB like X-ray inspectionPCB contamination testMicro-sectioning analysisPeel testPCB solderability testFour-terminal sensingSolder float testTime-domain reflectometer test, or TDR Take a look at the following sections to learn more about particular options Micro-sectioning analysis It’s physically cutting the PCB to observe the internal structure and potential problems. Although it may damage the board, it can provide information about the quality of the manufacturing process that other methods cannot. The technician can see any voids in the solder or if the copper traces are too thin. FCT Test–X-ray inspection This is a non-destructive technique that uses high-energy X-rays to penetrate the PCB and create a shadow image on film or a digital detector. We use it to detect internal features, such as voids in solder joints, and external features, such as missing or misaligned components. FCT Test–PCB Contamination Test A contamination test is to determine if there are any foreign particles on the surface of the PCB. This is important because these particles can cause electrical shorts or signal integrity problems. And the most common way to do this is with a dust wand. PCB solderability test A solderability test is to determine if the PCB can be soldered. While this is important because if you cannot solder the PCB, it will not be able to function. And the most common way to do this is with a hot-air rework station. How to Make Functional Circuit Test FCT Test Electronics workshop Now that we know what the FCT test is, it’s time to learn how to make one. First, you will need – A breadboard DIY electronics on the breadboard – Jumper wires Jumper cables – A power supply – An oscilloscope Digital oscilloscope and measuring devices with cables Connect the power supply to the positive and negative rails of the breadboard. Then, connect the oscilloscope to the power supply. Next, take a jumper wire and connect one end to the positive rail of the breadboard and the other end to the negative rail. Now, take another jumper wire and connect one end to the positive rail of the breadboard and the other end to one of the holes in the row above it. Do this for each row until you have eight rows connected. Finally, connect the last jumper wire from the top left hole to the ground. Your FCT test is now complete! FCT test fixture Soldering iron and repairing electronic circuits In this section, we will be discussing the fct test fixture. Firstly, the fct test fixture is a device used to test Printed Circuit Boards PCBs. In addition, it consists of a power supply, an oscilloscope, and a breadboard. And the power supply provides power to the PCB while it uses the oscilloscope to measure the voltage levels on the PCB. Also, we use the breadboard to connect the different components of the FCT test. FCT Test–test points Now that we have discussed the FCT test fixture let’s talk about the test points. The test points are the places on the PCB where we can measure the voltage levels. In addition, people also use them to connect different parts of the FCT test. And they are usually marked with a red or black dot. FCT Test–ICT test In this section, we will discuss the ICT test. The ICT test is a test that checks for shorts between the different tracks on the PCB. And it gets done by applying a high voltage to one way and then measuring the voltage on another track. If there is a short, then the voltage will be lower than expected. The ICT test is a very important test because it can find shorts that are not visible to the naked eye. And these shorts can cause all sorts of problems. So, it’s important to make sure that your PCB passes this test. What is an FCT machine? Manual electronics soldering and oscilloscope testing The FCT test machine is a specialized tester to test Printed Circuit Boards PCBs. In addition, the test machine also tests the functionality of the PCB. And it consists of a power supply, an oscilloscope, and a breadboard. The power supply provides power to the PCB while we use the oscilloscope to measure the voltage levels on the PCB. Also, we use the breadboard to connect different components of the FCT test. Summary Technician inserting electronic components into a PDB for assembly A PCB FCT test is essential during the PCB manufacturing process. This will help ensure that your boards are functioning as they should and that there are no errors or defects. If you’re looking for a quality PCB manufacturer, be sure to ask about their testing procedures and whether or not they include a functional test of the boards. We take our quality seriously and have a full PCB FCT test in all manufacturing processes. Contact us today to get started on your next project! Customized FCT/ICT MachinesWe can provide you with flexible and comprehensive process of electronic products like PCB assembly testing machines through our great capabilities, customized particularly to your products' unique requirements. FCT Machine Functional Circuit TestFCT refers to the test method that provides the simulated operating environment to the test target board, so that it can work in designed states to obtain the parameters of each state to verify the function of the UUT. Generally refers to the functional test of well-known brand pneumatic components to ensure durability, balance of action save trouble and effortHighCNC machining drilling accuracy, the minimum error is bearing guide to maintain the verticality of the slab, guard plate and needle plateSimultaneous operation of both hands to prevent accidentsWith fast clip as power, balanced pressure, convenient operation, saving time and effortCNC has high processing precision and high efficiencyAdopt linear bearing guide to ensure the accuracy of the needle pointThe rack is easy to adjust and the base can be serializedYour Benefits Fully customized testing functions Touch probe accuracy up to ± Assemble accessories as requiredICT Machines Integrated Circuit Tester）ICT test fixture is to check the manufacturing defects and bad components with a standard test equipment. It is mainly used to check the open, short circuit components as well as a single-line circuit OfferWe specializes in the production of high-precision ICT fixtrue for ICT equipment type TRI, PTI, OKANO, Tescon, Takaya, Hioki, Hibex, Concord, JET, SRC, etc.,You can choose according to customer’s demand INGUN or QA probe customization of different materials, and do the deformation of the test fixtureYour BenefitsFast test speedPCBA can finish L/C/R/D test without power-on, which can effectively reduce the waiting time for test start-up, and can also reduce the accident of Burn-in Board caused by short circuit. A piece of PCBA board with 300 components can be tested within 3~5 on-site technical dependenceThe time and error of human operation are greatly reduced by computer control. The operator can easily operate the equipment and replace the test fixture by himself with a little product utilization rateBy quick testing, the immediate feedback of problem will pass to the SMT operation on time, reducing non-performing rate, reducing the stock inventory and the accumulation of defective testabilityControlled by computer programs for accurate measurement, the risk of misjudgment and missed measurement can be greatly reduced, as well as the trouble to the production the costs of repairsThe maintenance work can be done by average operators, effectively reducing personnel costs. ICT can tell problems of any part or Network through the computer product qualityWith enough test points, ICT can measure all the circuits and parts on PCBA board, even the components on the bypass line can also be tested, which can improve overall product Asked Questions1 What data is needed to make FCT/ICT jig?Please send the PCBGerber file or CAD data, BOM list file, a PCBA sample, and a sample picture of your previous FCT/ICT jig will be quite helpful+ -2What kind of material do you use to make the FCT/ICT jig?That’s depend on your requirement, FR4, bakelite, acrylic, and anti-static material are all available.+ -3What brand of pins do you use?INGUN, QA, LH, or Made-In-China pins+ -4 How long do you need to make the FCT/ICT jig?FCT jig will take 5-7days to produce; ICT jig will take 1-2 weeks to produce based on its difficulty.+ -

ict and fct test