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:
Jul. 20, 2010
Filed:
Oct. 15, 2008
Applicant:
Jeffery F. Summers, Santa Barbara, CA (US);
Inventor:
Jeffery F. Summers, Santa Barbara, CA (US);
Assignee:
Innovative Micro Technology, Goleta, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/30 (2006.01); H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for providing improved gettering in a vacuum encapsulated device is described. The method includes forming a plurality of small indentation features in a device cavity formed in a lid wafer. The gettering material is then deposited over the indentation features. The indentation features increase the surface area of the getter material, thereby increasing the volume of gas that the getter material can absorb. This may improve the vacuum maintained within the vacuum cavity over the lifetime of the vacuum encapsulated device.