General type multichannel testing device for comprehensive functions of flexible printed circuit board (FPC)

Abstract

The invention discloses a general type multichannel testing device for comprehensive functions of a flexible printed circuit board (FPC). The general type multichannel testing device comprises a multichannel selective switch board, a multichannel signal generator, a measuring unit, a single chip microcomputer processing module, a liquid crystal display and a computer. The multichannel selective switch board is connected with the multichannel signal generator and the measuring unit, the liquid crystal display is connected with the multichannel signal generator and the measuring unit through the single chip microcomputer processing module, the computer is connected with the single chip microcomputer processing module through an RS232 serial port and a USB communication interface, and the computer is provided with software and package testing projects. The general type multichannel testing device achieves function test of all elements of the FPC. Due to the fact that the computer is provided with the software and the package testing projects, FPC test becomes general, and a worker in site can change testing step parameters to enable the general type multichannel testing device to be adaptable to type change. The general type multichannel testing device shortens a developing period, is convenient to maintain and improves the test covering rate, accuracy and stability.

Description

technical field [0001] The invention relates to the field of special testing instruments for flexible circuit boards, in particular to a general-purpose multi-channel flexible circuit board FPC comprehensive function testing device. Background technique [0002] With the miniaturization of consumer electronic products, the field of flexible circuit boards (FPC) has been rising in recent years. The types and quantities of electronic components integrated by FPC are increasing. Customers' test coverage, accuracy and stability of FPC Higher and higher. [0003] The existing methods of FPC testing are: visual inspection, ICT testing, special FPC testing. [0004] Visual inspection only detects the appearance of the product, and cannot find out whether the functional characteristics of the circuit are intact, and manual visual inspection is inefficient, easy to mistest, miss, and high cost. [0005] ICT testing is developed together with rigid circuit boards, and the testing of...

AI Technical Summary

Problems solved by technology

However, it cannot adapt to the needs of various types of flexible circuit board testing and miniaturization of testing, and the general ICT testing equipment is huge and costly

[0006] Dedicated FPC testing only develops a dedicated testing system for one type of FPC. The hardware and software of the testing system need to be redeveloped for FPC upgrades or changes. The repeated labor workload is heavy, the cycle is long, and maintenance is difficult, which affects customer use.

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