Process for forming package-on-package structures

US8975741B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8975741-B2
Application numberUS-201113275065-A
CountryUS
Kind codeB2
Filing dateOct 17, 2011
Priority dateOct 17, 2011
Publication dateMar 10, 2015
Grant dateMar 10, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A device includes an inter-layer dielectric, a device die under the inter-layer dielectric; and a die-attach film under the inter-layer dielectric and over the device die, wherein the die-attach film is attached to the device die. A plurality of redistribution lines includes portions level with the die-attach film. A plurality of Z-interconnects is electronically coupled to the device die and the plurality of redistribution lines. A polymer-comprising material is under the inter-layer dielectric. The device die, the die-attach film, and the plurality of Z-interconnects are disposed in the polymer-comprising material.

First claim

Opening claim text (preview).

What is claimed is: 1. A device comprising: an inter-layer dielectric; a first device die under the inter-layer dielectric; a die-attach film under the inter-layer dielectric and over the first device die, wherein the die-attach film is attached to the device die; a first plurality of redistribution lines comprising first portions level with the die-attach film; a first plurality of Z-interconnects electronically coupled to the device die and the first plurality of redistr…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8975741B2 cover?
A device includes an inter-layer dielectric, a device die under the inter-layer dielectric; and a die-attach film under the inter-layer dielectric and over the device die, wherein the die-attach film is attached to the device die. A plurality of redistribution lines includes portions level with the die-attach film. A plurality of Z-interconnects is electronically coupled to the device die and t…
Who is the assignee on this patent?
Lin Chih-Wei, Cheng Ming-Da, Chen Meng-Tse, and 4 more
What technology area does this patent fall under?
Primary CPC classification H10W90/00. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 10 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).