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. 09, 1991
Filed:
May. 03, 1989
Applicant:
Inventors:
Erich Plies, Munich, DE;
Joerg Quincke, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01N / ; G01R / ;
U.S. Cl.
CPC ...
2503581 ; 250330 ; 2503381 ; 250341 ; 2504581 ;
Abstract
Latch-up propagation is periodically triggered and the intensity of infrared radiation emanating from a CMOS circuit is successively detected at a plurality of measuring points covering the circuit in a grid-like manner at prescribed points in time after the appearance of the trigger signal which triggers latch-up and a measured value representing the intensity of infrared radiation is recorded in a location-dependent manner. The measured values are monitored with a display and the intensity thereof is utilized as the brightness control for the picture elements. Also, the measured values are stored in an image store.