Q: What is ICT?
A: ICT (In-Circuit Test System), the Chinese customary name is online tester (here refers to assembled circuit board online tester), which is mainly used for the test of assembled circuit board (PCBA). "Online" here is a literal translation of "In-Circuit", which mainly refers to components on the line. Online testing is a testing technology that does not disconnect the circuit and does not remove the component pins. "Online" reflects that ICT focuses on detecting circuit board assembly problems by testing the components on the circuit or the open and short circuit status.
Q: Which components can be measured with the basic functions of ICT?
A: Open, short circuit, resistance, capacitance, inductance, diode, IC protection diode test, etc.
Q: Why use ICT?
A: According to the statistical data of the circuit board assembly industry, assembly defects are mainly reflected in welding open circuit, short circuit, offset, missing parts, etc., accounting for more than 90%, as shown in the figure below, so the principle of online testing technology application is to be able to quickly detect Faulty components or assembly defects, and can accurately locate defects and defect classifications.
Q: Can ICT be regarded as a multimeter?
A: ICT can be regarded as an automated advanced multimeter, and because it has the function of circuit isolation (Guarding), it can accurately measure the actual value of each component in the circuit.
Q: What are the functional differences between ICT and general electricity meters?
A: An electric meter is used to measure a single part. In addition to measuring a single part, ICT can also measure parts on a real board through a needle bed. But there are many loops on the real board, it is easy to divide the signal source and divide the voltage, so it is often necessary to add the "Guarding" function to make the measurement accurate.
Q: What is the relationship between ICT and AOI?
A: ICT is mainly carried out through electrical measurement methods, while AOI is carried out through optical image processing technology. Both have their own strengths and complement each other. In terms of process arrangement, AOI first, then ICT.
ICT
An automatic test system for assembled circuit boards, which is also an online static circuit board test equipment, also known as ICT/ATE/ATS/MDA test in the industry!
ICT, In-Circuit Test System In-Circuit Test System
ATE, Automatic Test Equipment
ATS, Automatic Test System
MDA, Manufacture Defect Analyzer
ICT (In-Circuit Test System), the Chinese customary name is online tester (here refers to assembled circuit board online tester), which is mainly used for the test of assembled circuit board (PCBA). "Online" here is a literal translation of "In-Circuit", which mainly refers to electronic components on the line (or on the circuit). Online testing is a testing technology that does not disconnect the circuit and does not remove the component pins. "Online" reflects that ICT focuses on detecting circuit board assembly problems by testing the components on the circuit or the open and short circuit status.
In-Circuit Test System
Excellent performance, safety and stability, ultra-high-speed ICT online tester
Detect electronic substrate assembly defects such as short/open circuit, wrong parts, missing parts, empty soldering, and reverse mounting to the greatest extent.
Windows XP operating system, user-friendly interface, and convenient operation.
Using electronic switch + mechanical switch, extremely long life, ultra-fast test speed, and the highest safety of the board to be tested;
Or adopt REED RELAY, which has strong pressure resistance and good isolation effect.
The computer automatically learns to generate open/short circuit and IC protection diode test data.
The board view function can display the position of defective parts and pin points in real time, which is convenient for maintenance.
Complete test statistics and reports are generated and automatically stored.
The system has a self-check function, which is helpful for finding faults quickly.
With the IC Open TestJet test function, it can detect the problem of the soldering of the chip IC feet.
The application of IC Clamping Diode and analog reverse measurement technology can more reliably detect IC reverse mounting problems.
Capacitor leakage current polarity test and three-point polarity test
With 1MHz signal source, it can accurately measure small capacitance and inductance.
The three-point test mode can test components such as triode, FET, SCR, and the four-point test mode can test Photo Coupler, which can more reliably detect the problems of reverse mounting and empty welding of the above-mentioned parts.
上一篇：In the fourth quarter of this year, 5G mobile phone shipments will surpass 4G mobile phones: Apple iPhone won the top sales 下一篇：Under the impact of the epidemic, the global Smartphone Production in the second quarter was only 292 million, a decrease of 6% in the quarter
