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:
Nov. 04, 1997
Filed:
Aug. 10, 1993
Applicant:
Inventor:
William Uei-Chunt Liu, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257197 ; 257198 ;
Abstract
Generally, and in one form of the invention, a multiple layer wide bandgap collector structure is provided which comprises a relatively thin, highly doped layer 12 and a relatively thick, low doped or non-intentionally doped layer 14. Other devices, systems and methods are also disclosed.