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.

Date of Patent:
Jul. 03, 2018

Filed:

Jun. 27, 2017
Applicant:

Innovative Micro Technology, Goleta, CA (US);

Inventors:

Christopher S. Gudeman, Lompoc, CA (US);

Paul J. Rubel, Santa Barbara, CA (US);

Assignee:

Innovative Micro Technology, Goleta, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); B81B 7/00 (2006.01); B81C 1/00 (2006.01); B23K 20/02 (2006.01); B32B 9/04 (2006.01);
U.S. Cl.
CPC ...
B81B 7/0058 (2013.01); B23K 20/023 (2013.01); B32B 9/041 (2013.01); B81C 1/00269 (2013.01); B32B 2457/00 (2013.01);
Abstract

A method for bonding two substrates is described, comprising providing a first and a second silicon substrate, providing a raised feature on at least one of the first and the second silicon substrate, forming a layer of gold on the first and the second silicon substrates, and pressing the first substrate against the second substrate, to form a thermocompression bond around the raised feature. The high initial pressure caused by the raised feature on the opposing surface provides for a hermetic bond without fracture of the raised feature, while the complete embedding of the raised feature into the opposing surface allows for the two bonding planes to come into contact. This large contact area provides for high strength.


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