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:
Feb. 18, 1992
Filed:
Sep. 10, 1990
Applicant:
Inventors:
Kazuhide Deguchi, Itami, JP;
Teruhisa Ohkawa, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 40 ; 357 72 ; 356401 ;
Abstract
A semiconductor device includes a semiconductor chip on which a semiconductor element is disposed, the material of the surface emitting a quantity of radiation at a first predetermined temperature, and markers which identify a plurality of points on the surface region, disposed on the surface and formed of a second material which emits a second quantity of radiation, different from the first quantity at the predetermined temperature.