A Quick Test Method for Accuracy of Flying Probe Machine Capacitance Method

Abstract

The invention discloses a rapid test method for the precision capability of a flying probe machine capacitance method. According to the principle of the flying probe machine capacitance method, a flying probe machine capacitance method precision capability detecting board of four or more layers is designed, then the flying probe machine capacitance method detecting board is subjected to process manufacturing according to the design data, after the detecting board is manufactured, the precision capability of the flying probe machine capacitance method is detected, next, the precision capabilityof the flying probe machine capacitance method is determined, and finally, the comprehensive evaluation of the precision capability of the flying probe machine capacitance method and the on-site quality control are performed. The rapid test method for the precision capability of the flying probe machine capacitance method solves the technical problem that the precision of the flying probe machinecapacitance method cannot be measured or quantified, can help a technical person in charge of a PCB production enterprise to establish an optimal technological process according to detection information of the flying probe machine capacitance method precision capability detecting board, ensures the high efficiency of the capacitance method test, prevents open and short circuit defects from beingomitted due to insufficient precision capability of the capacitance method, and does not require hardware and other investment.

Description

Technical field [0001] The invention is applied to the field of electrical performance capability testing of printed circuit board testing equipment, in particular to a rapid testing method of capacitance precision capability of flying needle machine. technical background [0002] Before the printed circuit board is shipped, the conventional electrical performance of the printed circuit board should be tested by equipment, so as to prevent the leakage of short-circuit defects and the risk that the client will face huge claims. [0003] Or a general-purpose tester uses the physical contact between the probe of the test fixture and the conductive pad of the printed circuit board to detect the conductivity and insulation performance of the substrate circuit. When the test value meets the set value condition, the system reports "PASS", and when it exceeds the set value range, the system reports "FAIL". There are two kinds of flying probe testing machines: resistance testing method an...

AI Technical Summary

Problems solved by technology

[0013] The invention provides a rapid test method for the accuracy of the flying needle capacitance method, which solves the technical problem that the accuracy of the flying needle capacitance method cannot be measured or quantified, and can help the technical director of the PCB production enterprise to measure Based on the detection information of the method accuracy capability test board, the best process flow is established, which ensures the high efficiency of the capacitance method test, and prevents the open and short circuit defects from being missed due to the insufficient accuracy of the capacitance method, and does not require hardware and other investment

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