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:
Nov. 09, 1993
Filed:
Jun. 26, 1990
John H Tregilgas, Richardson, TX (US);
Walter L Kriss, Dallas, TX (US);
Donald F Weirauch, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Methods of annealing Hg.sub.1-x Cd.sub.x Te slices (56) in a mercury reflux chamber (32, 34) with a mercury reservoir (52) at the bottom and condensation regions at the top (62) is disclosed. The chamber is heated by a furnace (44) that creates an annealing region encompassing both the reservoir and a holder (46) for the Hg.sub.1-x Cd.sub.x Te slices (56). In preferred embodiment methods reservoir (52) is heated to 270.degree. C. for two hours to sixty days. An annealing immediately after LPE growth by use of either mercury vapor from the melt or a separate reservoir is also disclosed.