IP Library › Granted Patent US 7,180,100
Granted Patent B2
US 7,180,100 · App. 10/788,086 · Granted Feb 20, 2007

Semiconductor light-emitting device, surface-emission laser diode, and production apparatus thereof, production method, optical module and optical telecommunication system

Assignee: Ricoh Company, Ltd.
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Quick Facts
Patent No.
US 7,180,100
App. No.
10/788,086
Granted
Feb 20, 2007
Kind
B2
Abstract

A semiconductor light-emitting device has a semiconductor layer containing Al between a substrate and an active layer containing nitrogen, wherein Al and oxygen are removed from a growth chamber before growing said active layer and a concentration of oxygen incorporated into said active layer together with Al is set to a level such that said semiconductor light-emitting device can perform a continuous laser oscillation at room temperature.

Claims (1)

1. A semiconductor light emitting device having a p-type semiconductor layer between an active layer containing nitrogen and a semiconductor substrate, a selective oxidizing layer containing AlAs as a major component disposed in said p-type semiconductor layer, and a current confinement structure is formed by oxidizing a part of said disposed selective oxidizing layer, wherein said active layer containing nitrogen has an oxygen concentration of 1×10 18 cm −3 or less.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2004
From: TAKAHASHI, TAKASHI; KAMINISHI, MORIMASA; SATO, SHUNICHI; ITOH, AKIHIRO; JIKUTANI, NAOTO
To: RICOH COMPANY, LTD.
Reel/Frame 015919/0512 →
Priority Claims (17)
JP 2001-089068 · Mar 27, 2001 · national
JP 2001-210462 · Jul 11, 2001 · national
JP 2001-252537 · Aug 23, 2001 · national
JP 2001-253382 · Aug 23, 2001 · national
JP 2001-262902 · Aug 31, 2001 · national
JP 2001-288367 · Sep 21, 2001 · national
JP 2001-292958 · Sep 26, 2001 · national
JP 2001-293353 · Sep 26, 2001 · national
JP 2001-297936 · Sep 27, 2001 · national
JP 2001-297937 · Sep 27, 2001 · national
JP 2001-297938 · Sep 27, 2001 · national
JP 2001-297939 · Sep 27, 2001 · national
JP 2001-390927 · Dec 25, 2001 · national
JP 2002-029822 · Feb 6, 2002 · national
JP 2002-065431 · Mar 11, 2002 · national
JP 2003-077419 · Mar 20, 2003 · national
JP 2003-101620 · Apr 4, 2003 · national
Continuity (2)
Continuation In Part 1010580000 · Mar 26, 2002
Related Publication 20050040413A1 · Feb 24, 2005