The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 21, 2021

Filed:

Sep. 02, 2020
Applicant:

Gold Circuit Electronics Ltd., Taoyuan, TW;

Inventors:

Tien-Chieh Kang, Taoyuan, TW;

Chih-Ming Tsai, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/00 (2006.01); G01B 15/02 (2006.01); H05K 3/00 (2006.01); G01N 23/083 (2018.01);
U.S. Cl.
CPC ...
G01B 15/02 (2013.01); H05K 3/0047 (2013.01); G01N 23/083 (2013.01);
Abstract

A measurement system is provided, including a measurement machine and a computer. The measurement machine is configured to measure a thickness Tof a to-be-tested circuit board and a drilling depth Dof the to-be-tested circuit board. The computer calculates a length Sof a residual conductive portion in a back drilled hole of the to-be-tested circuit board according to a thickness T of a reference circuit board, a drilling depth D of the reference circuit board, a length S of a residual conductive portion in a back drilled hole of the reference circuit board, the thickness Tof the to-be-tested circuit board and the drilling depth Dof the to-be-tested circuit board.


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