ICT tester for printed circuit board assembly
In-Circuit-Tester Automatic circuit tester that is necessary for modern electronic business PCBA (pcb Assembly, printed circuit board assembly) manufacturing test equipment, ICT use a wide range of measurement accuracy is high, the detection of issue clear instructions, even if the general level of electronic technology workers to deal with problem of PCBA is also very easy. The use of ICT can greatly improve production efficiency, reduce production costs. 2. ICT Test * test probe is mainly out of contact with PCB layout of test points to detect the PCBA line open circuit, short circuit, all parts of the welding conditions can be divided into open-circuit test, short circuit testing, resistance testing, capacitance test, diode test, transistor test , FET test, IC lead test (testjet `connect check) and other general and specific components of the missing equipment, wrong equipment, parameter deviation, even the solder joints, short circuits, open circuit board failure, and failure is Which components or open circuit in which points exactly to tell users. (A component of the welding tests have a higher recognition) 3. ICT equipment manufacturers vary, Agilent Technologies (Agilent), Teradyne (Teradyne), POSSEHL, SAMSUNG (FARA), Aveda T2000, Instek (GW), SEICA, Ying Qi (WINCHY), TAKAYA, Check Sum (USA), Hioki, IFR, Takaya (Japan),, Tescon (Japan Taishi Kun), Okano (Japan), Rohde & Schwarz, Scorpion, Shindenski, SPEA, Tecnost-MTI, Testronics, SYS (Taiwan system), Tr (Delitai), WK Test, JET (Jazz), Schuhll, Viper, TTI, SRC (Galaxia), Hong Kong Zhenhua production of ICT in Concord China has applied. Which is the highest degree of market acceptance Agilent hp3070, Teradyne (Teradyne), Winchey (Ying Qi).
Online test, ICT, In-Circuit Test, is the online component of the electrical properties and electrical connection test to check the manufacturing defects and undesirable components of a standard testing methods. It is mainly the individual components as well as the online network of open circuit, short circuit situation is simple, fast and rapid, accurate fault location and other characteristics. Flying Probe ICT basic static tests only, without the advantage of making fixtures, program development time is short. Needle Bed ICT can be analog functions and digital logic device functional testing, fault coverage is high, but the veneer to be produced for each special needle bed fixture, jig making and program development cycle.
Scope and characteristics
Check the online components made of board and circuit electrical performance network connections. Can quantitatively on the resistors, capacitors, inductors, crystal and other measurement devices, the diodes, transistors, optical coupling, transformers, relays, operational amplifiers, power modules and other functional testing, functional small-scale integrated circuit testing, As with all 74 series, Memory type, drive type commonly used to exchange etc. IC. It is through direct on-line device electrical performance test to detect manufacturing defects and undesirable components. Components can check out the component values ??of tolerance, failure or damage, Memory type of program errors. Type of process can be found, such as solder shorts, plug the wrong device, insert the anti-, missing equipment, pin-curled, Weld, PCB short circuit, disconnection fault. Test failure positioned directly in specific components, the device pins, the network points, fault location accuracy. No more the fault of maintenance expertise. The use of automated process control testing, operation is simple, fast and rapid test, the test time typically board a few seconds to tens of seconds.