Die warpage control for thin die assembly

US9123732B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9123732-B2
Application numberUS-201213631612-A
CountryUS
Kind codeB2
Filing dateSep 28, 2012
Priority dateSep 28, 2012
Publication dateSep 1, 2015
Grant dateSep 1, 2015

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Abstract

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Die warpage is controlled for the assembly of thin dies. In one example, a device having a substrate on a back side and components in front side layers is formed. A backside layer is formed over the substrate, the layer resisting warpage of the device when the device is heated. The device is attached to a substrate by heating.

First claim

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What is claimed is: 1. A method comprising: forming a semiconductor device on a semiconductor substrate, the device having a backside and a front side opposite the back side, the front side having components in front side layers; forming a backside layer over the backside of the device by deposition, the backside layer resisting warpage of the device when the device is heated; and attaching the front side of the device to a package substrate by heating after forming the backsi…

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What does patent US9123732B2 cover?
Die warpage is controlled for the assembly of thin dies. In one example, a device having a substrate on a back side and components in front side layers is formed. A backside layer is formed over the substrate, the layer resisting warpage of the device when the device is heated. The device is attached to a substrate by heating.
Who is the assignee on this patent?
Sane Sandeep B, Ganapathysubramanian Shankar, Sanchez Jorge, and 6 more
What technology area does this patent fall under?
Primary CPC classification H10W42/121. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).