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:
Jul. 14, 1992
Filed:
Nov. 20, 1990
Applicant:
Inventor:
John D Kulick, Pittstown, NJ (US);
Assignee:
AMP Incorporated, Harrisburg, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 19 ; 357 30 ; 330 59 ; 330308 ; 307491 ; 307494 ;
Abstract
An integrated semiconductor device comprising a light emitting portion and a light detecting portion is disclosed. The integrated semiconductor device comprises two multiple quantum well P-I-N structures formed on a single substrate, one of the P-I-N structures being forward biased to emit light and the other of the P-I-N structures being reverse biased to detect light. Because of the quantum confined Stark effect, the reversed biased P-I-N structures is highly absorbing to light emitted by the forward biased P-I-N structure. The integrated semiconductor device may be utilized to implement an optical feedback path for a receiver.