IP Library Granted Patent US 11,495,529
Granted Patent B2
US 11,495,529 · App. 16/929,378 · Granted Nov 8, 2022

SOI substrate and related methods

Inventors: Mark Griswold (Gilbert, AZ); Michael J. Seddon (Gilbert, AZ)
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
H01L23/5222H01L21/0226H01L21/786H01L23/12H01L23/34
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Quick Facts
Patent No.
US 11,495,529
App. No.
16/929,378
Granted
Nov 8, 2022
Kind
B2
Abstract

Implementations of a silicon-on-insulator (SOI) die may include a silicon layer including a first side and a second side, and an insulative layer coupled directly to the second side of the silicon layer. The insulative layer may not be coupled to any other silicon layer.

Claims (32)

1. A silicon-on-insulator (SOI) die comprising:

a silicon layer comprising a first side and a second side;

a conductive layer coupled directly to the second side of the silicon layer; and

an insulative layer coupled directly to the conductive layer,

wherein the insulative layer is coupled to silicon only through the conductive layer and the second side of the silicon layer; and

wherein the silicon layer is thinned through a backgrinding process; and

wherein the silicon layer is less than 35 micrometers thick.

2. The die of claim 1 , further comprising one or more semiconductor devices on the first side of the silicon layer.

3. The die of claim 1 , wherein the insulative layer comprises a thermally conductive material.

4. The die of claim 1 , wherein the silicon layer comprises no bubbles therein.

5. The die of claim 1 , wherein the silicon layer comprises no implanted gas therein.

6. A silicon-on-insulator (SOI) die comprising:

a silicon layer comprising a first side and a second side;

a conductive layer coupled directly to the second side of the silicon layer; and

an insulative layer coupled directly to the conductive layer, wherein the insulative layer is coupled to silicon only through the conductive layer and the second side of the silicon layer.

7. The die of claim 6 , further comprising one or more semiconductor devices on the first side of the silicon layer.

8. The die of claim 6 , wherein the silicon layer is less than 35 micrometers thick.

9. The die of claim 6 , wherein the insulative layer comprises a thermally conductive material.

10. The die of claim 6 , wherein the conductive layer comprises titanium.

11. The die of claim 6 , wherein the conductive layer comprises a pattern.

12. The die of claim 6 , wherein the silicon layer comprises no bubbles therein.

13. The die of claim 6 , wherein the silicon layer comprises no implanted hydrogen therein.

14. A silicon-on-insulator (SOI) die consisting of:

a silicon layer comprising a first side and a second side;

a semiconductor device coupled to the first side of the silicon layer; and

an insulative layer coupled directly to a conductive layer coupled directly to the silicon layer;

wherein the silicon layer is thinned to less than 35 micrometers thick through a backgrinding process.

15. The die of claim 14 , wherein the insulative layer is not coupled to any other silicon layer.

16. The die of claim 14 , wherein the conductive layer comprises a pattern.

17. The die of claim 14 , wherein the silicon layer comprises no bubbles therein.

18. The die of claim 14 , wherein the silicon layer comprises no implanted hydrogen therein.

19. The die of claim 14 , wherein the conductive layer comprises titanium.

Assignments (3)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL 054523, FRAME 0378 Recorded Aug 16, 2023
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Reel/Frame 064615/0602 →
SECURITY INTEREST Recorded Nov 25, 2020
From: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 054523/0378 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2020
From: SEDDON, MICHAEL J.; GRISWOLD, MARK
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Reel/Frame 053214/0796 →
Continuity (2)
Division 15961642 · Apr 24, 2018
Related Publication 20200350242A1 · Nov 5, 2020
Cited By (1)
US 12,211,784