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:
Feb. 16, 2010
Filed:
Jun. 01, 2006
Applicants:
Nami Yasuoka, Kawasaki, JP;
Kenichi Kawaguchi, Kawasaki, JP;
Inventors:
Nami Yasuoka, Kawasaki, JP;
Kenichi Kawaguchi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A side barrier is provided between columnar dots each constituted by directly stacking respective quantum dots in seven or more layers. Out of respective side barrier layers composing the side barrier, each of the lower side barrier layers (four layers of the undermost layer to the fourth layer from the bottom) is formed as a first side barrier layer into which a tensile strain is introduced, and each of the upper side barrier layers (three layers of the fifth layer to the uppermost layer from the bottom) is formed as a second side barrier layer which has no strain.