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:
Jul. 25, 1989
Filed:
May. 13, 1988
Applicant:
Inventor:
Robert A Armistead, Los Altos Hills, CA (US);
Assignee:
Advanced Research & Applications Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
378-4 ; 378 17 ; 378 58 ;
Abstract
Computed tomography inspection apparatus and method of inspecting electronic devices and features of PCBs/PWBs, such as solder bonds, tracings and vias. The system scans radiation passed through the devices in thin slices and detects attenuated radiation from which it generates data representing slice images with high resolution. The detected image data are analyzed automatically by an image data analyzer which receives model data against which it compares and evaluates the detected image data.