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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.:

US 8907253 B1

PDFFull Text
Expired
Date of Patent:
Dec. 09, 2014

Filed:

Oct. 27, 2010

Method and device for producing a compound semiconductor layer

Applicants:

Immo Koetschau, Brandenberg An Der Havel, DE;

Dieter Schmid, Munich, DE;

Inventors:

Immo Koetschau, Brandenberg An Der Havel, DE;

Dieter Schmid, Munich, DE;

Assignee:

Centrotherm Photovoltaics AG, Blaubeuren, DE;

Attorneys:

Laurence A. Greenberg

Werner H. Stemer

Ralph E. Locher

Primary Examiner:

Joseph M Pelham

Int. Cl.
CPC ...
H01L 21/20 (2006.01); H01L 21/263 (2006.01); F27B 9/04 (2006.01); F27B 9/22 (2006.01); F27B 9/36 (2006.01); F27D 3/04 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 21/02568 (2013.01); H01L 21/02614 (2013.01);
Abstract

In a method for producing a I-III-VI compound semiconductor layer, a substrate is provided with a coating which has a metallic precursor layer. The coating is kept, for the duration of a process time, at temperatures of at least 350 degrees C. and the metallic precursor layer, in the presence of a chalcogen at an ambient pressure of between 500 mbar and 1500 mbar, is converted into a compound semiconductor layer. The coating is kept at temperatures for the duration of an activation time which attain at least an activation barrier temperature, whereby as the activation barrier temperature a value of at least 600° C. is selected.

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Koetschau, Immo. (2014). Method and device for producing a compound semiconductor layer (U.S. Patent No. 8907253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8907253

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