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:
Aug. 05, 1997
Filed:
May. 25, 1994
Applicant:
Inventors:
Mototaka Taneya, Nara, JP;
Hiroaki Kudo, Nara, JP;
Satoshi Sugahara, Nara, JP;
Haruhisa Takiguchi, Nara, JP;
Assignees:
Sharp Kabushiki Kaisha, Osaka, JP;
Optoelectronics Technology Research Laboratory, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 14 ; 257 17 ; 257 23 ;
Abstract
A quantum wire structure includes a first layer having a thickness sufficiently smaller than a de Broglie wavelength of an electron wave in a medium, a second layer and a third layer which are disposed on and under the first layer and respectively have a forbidden band width larger than that of the first layer, wherein the first layer has a region with a relatively small curvature and a region with a relatively large curvature in its cross-section, and a width of the region with a relatively small curvature is 50 nm or less.