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. 12, 1997
Filed:
Jul. 18, 1995
Applicant:
Inventor:
Adarsh Sandhu, Yokohama, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; H01L / ; G01R / ;
U.S. Cl.
CPC ...
360112 ; 257421 ; 324251 ;
Abstract
A thin film magnetic head includes a layered semiconductor body formed of a quantum well layer sandwiched by first and second barrier layers, wherein at least one of the first and second barrier layers includes therein a delta-doped layer that shields the quantum well layer from a surface depletion region extending from the surface of the barrier layer.