公开(公告)号：US10340146B2

公开(公告)日：2019-07-02

申请号：US15647495

申请日：2017-07-12

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Rohit Galatage ,  Shariq Siddiqui ,  Chung-Ju Yang

IPC: H01L21/00 ,  H01L21/28 ,  H01L21/02 ,  H01L21/311 ,  H01L29/51

Abstract: Structures for reliability caps used in the manufacture of a field-effect transistor and methods for forming reliability caps used in the manufacture of a field-effect transistor. A layer comprised of a metal silicon nitride is deposited on a high-k dielectric material. The high-k dielectric material is thermally processed in an oxygen-containing ambient environment with the layer arranged as a cap between the high-k dielectric material and the ambient environment. Due at least in part to its composition, the layer blocks transport of oxygen from the ambient environment to the high-k dielectric material.

公开(公告)号：US20190019682A1

公开(公告)日：2019-01-17

申请号：US15647495

申请日：2017-07-12

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Rohit Galatage ,  Shariq Siddiqui ,  Chung-Ju Yang

IPC: H01L21/28 ,  H01L21/02 ,  H01L21/311 ,  H01L29/51

CPC classification number: H01L21/28211 ,  H01L21/02175 ,  H01L21/02181 ,  H01L21/02183 ,  H01L21/02186 ,  H01L21/02189 ,  H01L21/0228 ,  H01L21/02362 ,  H01L21/28185 ,  H01L21/31111 ,  H01L29/517 ,  H01L29/78

Abstract: Structures for reliability caps used in the manufacture of a field-effect transistor and methods for forming reliability caps used in the manufacture of a field-effect transistor. A layer comprised of a metal silicon nitride is deposited on a high-k dielectric material. The high-k dielectric material is thermally processed in an oxygen-containing ambient environment with the layer arranged as a cap between the high-k dielectric material and the ambient environment. Due at least in part to its composition, the layer blocks transport of oxygen from the ambient environment to the high-k dielectric material.