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. 10, 2007
Filed:
Jun. 24, 2005
Applicants:
Yasuhiro Oda, Kanagawa, JP;
Kenji Kurishima, Kanagawa, JP;
Haruki Yokoyama, Kanagawa, JP;
Takashi Kobayashi, Kanagawa, JP;
Inventors:
Yasuhiro Oda, Kanagawa, JP;
Kenji Kurishima, Kanagawa, JP;
Haruki Yokoyama, Kanagawa, JP;
Takashi Kobayashi, Kanagawa, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/739 (2006.01);
U.S. Cl.
CPC ...
Abstract
An n-type InP sub collector layerheavily doped with silicon (Si), an InP collector layera p-type GaAsSbbase layerheavily doped with carbon (C), an n-type InAlP emitter layerdoped with Si, an n-type InP cap layerheavily doped with Si, and an n-type InGaAs contact layerheavily doped with Si are stacked on a substrate