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.:

US 9383143 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 05, 2016

Filed:

Sep. 25, 2014
Applicant:

Micro Cooling Concepts, Inc., Huntington Beach, CA (US);

Inventors:

Jack Merrill Fryer, Huntington Beach, CA (US);

Geoff Campbell, Broomfield, CO (US);

Brian S. Peotter, Costa Mesa, CA (US);

Lloyd Droppers, Sunnyvale, CA (US);

Assignee:

Micro Cooling Concepts, Inc., Huntington Beach, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/00 (2006.01); F28D 1/03 (2006.01); B23K 20/02 (2006.01); B23K 20/24 (2006.01);
U.S. Cl.
CPC ...
F28D 1/0308 (2013.01); B23K 20/002 (2013.01); B23K 20/02 (2013.01); B23K 20/023 (2013.01); B23K 20/026 (2013.01); B23K 20/24 (2013.01); B23K 2201/14 (2013.01); B23K 2203/10 (2013.01); Y10T 137/8593 (2015.04);
Abstract

Diffusion bonding a stack of aluminum thin films is particularly challenging due to a stable aluminum oxide coating that rapidly forms on the aluminum thin films when they are exposed to atmosphere and the relatively low meting temperature of aluminum. By plating the individual aluminum thin films with a metal that does not rapidly form a stable oxide coating, the individual aluminum thin films may be readily diffusion bonded together using heat and pressure. The resulting diffusion bonded structure can be an alloy of choice through the use of a carefully selected base and plating metals. The aluminum thin films may also be etched with distinct patterns that form a microfluidic fluid flow path through the stack of aluminum thin films when diffusion bonded together.


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