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:
Sep. 04, 1990
Filed:
Jul. 25, 1988
Applicant:
Inventors:
Kwang S Kim, Chung Nam, KR;
Sang Hun Chai, Chung Nam, KR;
Young S Koo, Chung Nam, KR;
Yeo H Kim, Chung Nam, KR;
Jin H Lee, Chung Nam, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 31 ; 437 33 ; 437 59 ; 437162 ; 148D / ; 357 43 ; 357 34 ; 357 59 ;
Abstract
A fabrication method for a high speed and high packing density semiconductor device (BiCMOS) in which high speed polysilicon self-aligned bipolar transistors and high packing density CMOS are contained on the same wafer in such a manner that simplicity in fabrication is attained, while the high speed of operation and the high packing density of array are simultaneously realized.