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:
Dec. 14, 2021

Filed:

Aug. 23, 2019
Applicant:

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

Inventors:

Ronilo Boja, Gilroy, CA (US);

Inderjit Singh, Saratoga, CA (US);

Gerilyn Maloney, Los Altos, CA (US);

Chandan Bhat, Sunnyvale, CA (US);

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/049 (2006.01); H01L 23/24 (2006.01); H01L 23/31 (2006.01); H01L 21/56 (2006.01);
U.S. Cl.
CPC ...
H01L 23/049 (2013.01); H01L 21/565 (2013.01); H01L 23/24 (2013.01); H01L 23/3107 (2013.01);
Abstract

A chip package and method for fabricating the same are provided which utilize a cover having one or more windows formed through one or more sidewalls to provide excellent resistance to warpage while allowing access to an internal volume of the chip package. In one example, the chip package includes a package substrate, an integrated circuit (IC) die, and a cover disposed over the IC die. The cover includes a lower surface facing the IC die, an upper surface facing away from the IC die, a lip extending from the lower surface, and a first sidewall extending from a first edge of the upper surface to the bottom of the lip. The lip is secured to the package substrate and encloses a volume between the lower surface and the package substrate. The IC die resides in the volume. A first elongated window is formed through the first sidewall and exposes the volume through the cover.


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