Expansion and contraction detecting method for multi-layer plate

Abstract

The invention provides an expansion and contraction detecting method for a multi-layer plate. The method comprises: determining an expansion-contraction coefficient by a production plate after early-stage pressing; modifying an expansion-contraction drilling belt based on the expansion-contraction coefficient; and carrying out drilling processing on the corresponding production plate according tothe expansion-contraction drilling belt. Therefore, the expansion and contraction measuring flow of a pressing plate can be simplified effectively; the drilling production efficiency can be enhanced;quick transferring to a next procedure for production is realized; the expansion and contraction of the plate can be monitored through a peripheral auxiliary hole during drilling; and production is carried out by direct setting the expansion and contraction data by a drilling bench, so that the efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of circuit board processing, and in particular relates to a multilayer board expansion and contraction detection method. Background technique [0002] In the production and processing of multi-layer circuit boards in the prior art, it is necessary to inspect and monitor the expansion and contraction of the board during the production process of the circuit board, and provide expansion and contraction data and hole deviation quality confirmation for the drilling process; special equipment is required for measurement in the early production process The expansion and contraction data after the plate is pressed, if there is expansion and contraction, the drill belt data needs to be revised and adjusted by the engineer. The production process is too long and the efficiency is low. In addition, the modified drill belt data cannot monitor the expansion and contraction of the four sides of the plate in an all-round...

AI Technical Summary

Problems solved by technology

[0002] In the production and processing of multi-layer circuit boards in the prior art, it is necessary to inspect and monitor the expansion and contraction of the board during the production process of the circuit board, and provide expansion and contraction data and hole deviation quality confirmation for the drilling process; special equipment is required for measurement in the early production process The expansion and contraction data after the plate is pressed, if there is any expansion and contraction, the engineering modification and adjustment of the drill belt data are required. The production process is too long and the efficiency is low. In addition, the modified drill belt data cannot monitor the expansion and contraction of the four sides of the plate in an all-round way.