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:
Oct. 14, 1997
Filed:
Feb. 26, 1993
Applicant:
Inventor:
Ichiro Ogura, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H03K / ;
U.S. Cl.
CPC ...
257113 ; 257 21 ; 257114 ; 257167 ; 257184 ; 257187 ; 257918 ; 307311 ;
Abstract
The invention provides an optical functioning device which emits and receives light, and a driver circuit for controlling the device with light. In the device, elements, in which semiconductor multilayer-film reflecting mirrors are provided at both the upper and lower ends of a pnpn structure of semiconductors and which have light-emitting and light-receiving functions to act as optical resonators, are integrated two-dimensionally each with electrodes which are provided for the and the transistors act as phototransistors into which light is introduced.