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:
Aug. 15, 2017

Filed:

Sep. 14, 2016
Applicant:

Invensense, Inc., San Jose, CA (US);

Inventors:

Cerina Zhang, Milpitas, CA (US);

Martin Lim, San Mateo, CA (US);

Jongwoo Shin, Pleasanton, CA (US);

Joseph Seeger, Menlo Park, CA (US);

Assignee:

Invensense, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/02 (2006.01); B81C 1/00 (2006.01); B81B 7/02 (2006.01); B81B 7/00 (2006.01);
U.S. Cl.
CPC ...
B81C 1/00301 (2013.01); B81B 7/007 (2013.01); B81B 7/02 (2013.01); B81C 1/0023 (2013.01); B81C 1/00246 (2013.01); B81C 1/00269 (2013.01); B81B 2201/0235 (2013.01); B81B 2201/0242 (2013.01); B81C 2201/0104 (2013.01); B81C 2201/0132 (2013.01); B81C 2203/019 (2013.01); B81C 2203/0145 (2013.01); B81C 2203/035 (2013.01); B81C 2203/0792 (2013.01);
Abstract

Semiconductor manufacturing processes include providing a first substrate having a first passivation layer disposed above a patterned top-level metal layer, and further having a second passivation layer disposed over the first passivation layer; the second passivation layer has a top surface. The processes further include forming an opening in a first portion of the second passivation layer, and the opening exposes a portion of a surface of the first passivation layer. The processes further include patterning the second and first passivation layers to expose portions of the patterned top-level metal layer and bonding a second substrate and the first substrate to each other. The bonding occurs within a temperature range in which at least the exposed portion of the first passivation layer undergoes outgassing.


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