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. 15, 1990
Filed:
Mar. 03, 1987
Tamotsu Hatayama, Matsudo, JP;
Yujiro Naruse, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A solid state radiation detector has semiconductor layers and metal layers which are stacked along the incident direction of radiation rays. Each metal layer is made of a specific metal material which receives radiation rays entering itself and produces free photoelectrons by interactions therewith. The photoelectrons are introduced into the semiconductor layer, and excite it, thereby producing electron-hole pairs therein. The metal layers serve not only as radiation detecting layers but also as electrodes for collecting the electron-hole pairs. Therefore, when the produced electron-hole pairs are derived from the metal layers, an electrical radiation detecting signal may be produced.