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.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Apr. 13, 2023
Guangzhou Termbray Electronics Tech Co., Ltd., Guangzhou, CN;
Jian Zheng, Guangzhou, CN;
Guojin Luo, Guangzhou, CN;
GUANGZHOU TERMBRAY ELECTRONICS TECH CO., LTD., Guangzhou, CN;
Abstract
A method for analyzing the quality of a thin layer surface of PCB includes steps of taking a region to be tested from the PCB as a sample by scissors or an automatic sampler; performing gold spraying treatment; fixing a sample to be tested onto a metal sample platform, and then mounting the sample platform on the inclined surface of a test platform; depositing a first protective layer by an electron beam; after deposition with the electron beam is completed, depositing a second protective layer by a focused ion beam; adjusting the angle of inclination of the test platform to ensure that the surface of the sample can be cut perpendicular to the direction of the focused ion beam; and finally adjusting angle of inclination of the sample to perform observation. The method can avoid influences of chemical solutions, mechanical stress, and impurity contamination in the sample preparation process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile