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:
Apr. 28, 1998
Filed:
Jan. 30, 1996
Reinhard Zachai, Guenzburg, DE;
Hans-Juergen Fuesser, Gerstetten-Dettingen, DE;
Tim Gutheit, Ulm, DE;
Daimler-Benz AG, Stuttgart, DE;
Abstract
The invention relates to a composite structure for electronic components comprising a growth substrate, an intermediate layer having substantially a crystallographic lattice structure arranged on the growth substrate, and a diamond layer applied on top of the intermediate layer, and to a process for producing a composite structure of this type. In order to obtain a diamond layer of highest quality, the intermediate layer has substantially a zinc blende or diamond or a calcium fluoride structure, in which at the outset of the intermediate layer the difference between the lattice constant of the intermediate layer and the lattice constant of the growth substrate, relative to the lattice constant of the growth substrate, is less than 20%, in particular less than 10%, and in which at the transition from the intermediate layer to the diamond layer for the lattice constant of the intermediate layer and the lattice constant of the diamond layer the value of the expression .vertline.(n*a.sub.ZS -m*a.sub.D).vertline./n*a.sub.ZS is less than 0.2, in particular less than 0.1, wherein n and m are natural numbers, a.sub.D is the lattice constant of the diamond layer, and a.sub.ZS is the lattice constant of the intermediate layer at the transition to the diamond layer.