IP Library › Granted Patent US 8,741,739
Granted Patent B2
US 8,741,739 · App. 13/342,697 · Granted Jun 3, 2014

High resistivity silicon-on-insulator substrate and method of forming

Inventors: Alan B. Botula (Essex Junction, VT); Mark D. Jaffe (Shelburne, VT); Alvin J. Joseph (Williston, VT)
Assignee: International Business Machines Corporation
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Quick Facts
Patent No.
US 8,741,739
App. No.
13/342,697
Filed
Jan 3, 2012
Granted
Jun 3, 2014
Kind
B2
Examiner
ULLAH, ELIAS
Art Unit
2893
USPC
257/632
Abstract

A semiconductor structure and a method of forming the same. In one embodiment, a method of forming a silicon-on-insulator (SOI) wafer substrate includes: providing a handle substrate; forming a high resistivity material layer over the handle substrate, the high resistivity material layer including one of an amorphous silicon carbide (SiC), a polycrystalline SiC, an amorphous diamond, or a polycrystalline diamond; forming an insulator layer over the high resistivity material layer; and bonding a donor wafer to a top surface of the insulator layer to form the SOI wafer substrate.

Claims (15)

1. A method of forming a silicon-on-insulator (SOI) wafer substrate, the method comprising:

forming a high resistivity material layer over a handle substrate, the high resistivity material layer including one of an amorphous silicon carbide (SiC), a polycrystalline SiC, an amorphous carbon, an amorphous diamond, or a polycrystalline diamond;

forming an insulator layer over the high resistivity material layer,

wherein the insulator layer includes boro-phospho-silicate glass (BPSG);

bonding a donor wafer to a top surface of the insulator layer to form the SOI wafer substrate,

wherein the donor wafer includes:

a donor substrate including a damage layer; and

a donor insulator layer contacting the donor substrate and separate from the insulator layer over the high resistivity material layer,

wherein the bonding of the donor wafer includes bonding the donor insulator layer to the top surface of the insulator layer, and

wherein the bonding includes annealing, causing the donor wafer to cleave at the damage layer; and

removing a portion of the donor substrate above the damage layer after the cleaving.

2. The method of claim 1 , wherein the handle substrate is comprised primarily of silicon.

3. The method of claim 1 , wherein the insulator layer includes silicon dioxide (SiO2).

4. The method of claim 1 , wherein the forming of the high resistivity layer includes depositing the high resistivity layer directly on the handle substrate.

5. The method of claim 4 , wherein the forming of the high resistivity layer includes depositing approximately 10-50 micrometers of the high resistivity layer directly on the handle substrate.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded May 12, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: GLOBALFOUNDRIES U.S. INC.
Reel/Frame 056987/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 20, 2020
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: GLOBALFOUNDRIES INC.
Reel/Frame 054636/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2020
From: GLOBALFOUNDRIES INC.
To: GLOBALFOUNDRIES U.S. INC.
Reel/Frame 054633/0001 →
SECURITY AGREEMENT Recorded Nov 29, 2018
From: GLOBALFOUNDRIES INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 049490/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2015
From: GLOBALFOUNDRIES U.S. 2 LLC; GLOBALFOUNDRIES U.S. INC.
To: GLOBALFOUNDRIES INC.
Reel/Frame 036779/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2015
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: GLOBALFOUNDRIES U.S. 2 LLC
Reel/Frame 036550/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2012
From: BOTULA, ALAN B.; JAFFE, MARK D.; JOSEPH, ALVIN J.
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 027471/0593 →
Continuity (1)
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