公开(公告)号：US11652036B2

公开(公告)日：2023-05-16

申请号：US15942864

申请日：2018-04-02

Applicant: Intel Corporation

Inventor： Jeremy Ecton ,  Hiroki Tanaka ,  Kristof Kuwawi Darmawikarta ,  Oscar Ojeda ,  Arnab Roy ,  Nicholas Haehn

IPC: H01L23/498 ,  H01L23/14 ,  H01L23/00 ,  H01L21/027 ,  G03F7/039 ,  G03F7/038 ,  G03F7/20 ,  G03F7/26 ,  H01L21/48

CPC classification number: H01L23/49838 ,  G03F7/038 ,  G03F7/039 ,  G03F7/20 ,  G03F7/26 ,  H01L21/0274 ,  H01L21/4857 ,  H01L23/145 ,  H01L23/49822 ,  H01L23/49866 ,  H01L24/16 ,  H01L2224/16227

Abstract: Disclosed herein are via-trace structures with improved alignment, and related package substrates, packages, and computing device. For example, in some embodiments, a package substrate may include a conductive trace, and a conductive via in contact with the conductive trace. The alignment offset between the conductive trace and the conductive via may be less than 10 microns, and conductive trace may have a bell-shaped cross-section or the conductive via may have a flared shape.

公开(公告)号：US20210289638A1

公开(公告)日：2021-09-16

申请号：US17336008

申请日：2021-06-01

Applicant: INTEL CORPORATION

Inventor： Jeremy Ecton ,  Nicholas Haehn ,  Oscar Ojeda ,  Arnab Roy ,  Timothy White ,  Suddhasattwa Nad ,  Hsin-Wei Wang

IPC: H05K3/46 ,  H01L21/48 ,  H01L23/498 ,  H05K3/18 ,  H05K5/00

Abstract: Techniques and mechanisms for providing anisotropic etching of a metallization layer of a substrate. In an embodiment, the metallization layer includes grains of a conductor, wherein a first average grain size and a second average grain size correspond, respectively, to a first sub-layer and a second sub-layer of the metallization layer. The first sub-layer and the second sub-layer each span at least 5% of a thickness of the metallization layer. A difference between the first average grain size and the second average grain size is at least 10% of the first average grain size. In another embodiment, a first condition of metallization processing contributes to grains of the first sub-layer being relatively large, wherein an alternative condition of metallization processing contributes to grains of the second sub-layer being relatively small. A grain size gradient across a thickness of the metallization layer facilitates etching processes being anisotropic.