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. 13, 1999
Filed:
Sep. 10, 1996
Applicant:
Inventor:
Herbert Schwarzbauer, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228194 ; 228193 ; 228208 ;
Abstract
In a method for fastening electronic components on a substrate by means of pressure sintering, which includes providing a layer of sinterable metal powder on a surface of one component, assembling the components engaging the layer and then, while exerting a pressure on the components, applying heat to sinter the layer of material, an improvement comprises forming the layer of sinterable metal powder by vaporizing a metal and condensing the metal as a nanocrystalline metal powder on the surface. Preferably, the metal powder is silver and is applied in a precipitation chamber.