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:
May. 30, 1989
Filed:
Oct. 01, 1987
Applicant:
Inventors:
Noritada Sato, Yokosuka, JP;
Yasukazu Seki, Yokosuka, JP;
Assignee:
Fuji Electric Co., Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 29 ; 357 30 ; 357 52 ; 250270 ;
Abstract
A semiconductor device for detecting gamma radiation displaying superior linearity of response to radiation without showing any energy dependency even if the gamma rays have the high energy is formed using an annular depletion region surrounded by non-depletion regions. The size of the regions is selected so that the distance from the edge of the depletion to the most distant point of the non-depletion region is at least about equal to the mean range of the highest energy gamma ray to be measured.