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. 20, 2014
Filed:
May. 20, 2011
Ethan Hull, Oak Ridge, TN (US);
Richard Pehl, Raymond, WA (US);
Bruce Suttle, Oak Ridge, TN (US);
James Lathrop, Oak Ridge, TN (US);
Ethan Hull, Oak Ridge, TN (US);
Richard Pehl, Raymond, WA (US);
Bruce Suttle, Oak Ridge, TN (US);
James Lathrop, Oak Ridge, TN (US);
Other;
Abstract
A germanium semiconductor radiation detector contact made of yttrium metal. A thin (˜1000 Å) deposited layer of yttrium metal forms a thin hole-barrier and/or electron-barrier contact on both p- and n-type germanium semiconductor radiation detectors. Yttrium contacts provide a sufficiently high hole barrier to prevent measurable contact leakage current below ˜120 K. The yttrium contacts can be conveniently segmented into multiple electrically independent electrodes having inter-electrode resistances greater than 10 GΩ. Germanium semiconductor radiation detector diodes fabricated with yttrium contacts provide good gamma-ray spectroscopy data.