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:
Dec. 15, 2009
Filed:
Mar. 10, 2005
Luke F. Lester, Albuquerque, NM (US);
Larry R. Dawson, Albuquerque, NM (US);
Edwin A. Pease, Albuquerque, NM (US);
Luke F. Lester, Albuquerque, NM (US);
Larry R. Dawson, Albuquerque, NM (US);
Edwin A. Pease, Albuquerque, NM (US);
STC.UNM, Albuquerque, NM (US);
Abstract
A semiconductor device is supported by a substrate with a smaller lattice constant. A metamorphic buffer provides a transition from the smaller lattice constant of the substrate to the larger lattice constant of the semiconductor device. In one application, the semiconductor device has a lattice constant of between approximately 6.1 and 6.35 angstroms, metamorphic buffer layers include Sb (e.g., AlInSb buffer layers), and the substrate has a smaller lattice constant (e.g., Si, InP or GaAs substrates).