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:
Mar. 28, 1978
Filed:
Jun. 30, 1975
Applicant:
Inventors:
Tich T Dao, Cupertino, CA (US);
Patrick A Tucci, Cupertino, CA (US);
Assignee:
Signetics Corporation, Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 44 ; 357 35 ; 357 36 ; 357 46 ; 357 86 ; 307211 ; 3072 / ;
Abstract
Integrated injection logic circuits and semiconductor devices employing threshold functions. Multiple-collector input transistors have their collectors connected to the bases of one or more output transistors. The output transistors have different weighted levels of injection current. The switching states of the output transistors are functions of the number of and conduction state of input transistors to which the output transistor are connected and to the weight of the injection current associated with the output transistor.