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:
Jul. 24, 2001
Filed:
May. 01, 1998
Frank Fischer, Würzburg, DE;
Hans-Jürgen Lugauer, Gerbrunn, DE;
Thomas Litz, Würzburg, DE;
Gottfried Landwehr, Würzburg, DE;
Andreas Waag, Würzburg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
Component having an active layer (,), barrier layers (,), and, if appropriate, a buffer layer (,), of which layers at least one contains a beryllium-containing chalcogenide. The active layer is a multiple layer, for example a superlattice made of BeTE/ZnSe or of BeTe/ZnCdSe. When using an active layer of ZnSe on a substrate (,) of Gaps, matching with low electrical resistance is achieved between the III-V materials and the II-VI materials by means of a pseudo-graded buffer layer (,) including a beryllium-containing chalcogenide.