IP Library Granted Patent US 12,020,972
Granted Patent B2
US 12,020,972 · App. 16/862,184 · Granted Jun 25, 2024

Curved semiconductor die systems and related methods

Inventors: Michael J. Seddon (Gilbert, AZ); Francis J. Carney (Mesa, AZ)
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
H01L21/6838H01L23/32H01L23/5387H01L23/562
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Quick Facts
Patent No.
US 12,020,972
App. No.
16/862,184
Granted
Jun 25, 2024
Kind
B2
Abstract

Implementations of a curved die system may include a semiconductor die; and a die curvature support structure including an organic material coupled to a surface of the semiconductor die. The die curvature support structure may induce warpage greater than 200 microns in the surface of the semiconductor die. The die curvature support structure may be configured to induce warpage prior to coupling the semiconductor die to a correspondingly curved substrate.

Claims (28)

1. A method of forming a curved semiconductor die system, the method comprising:

coupling a die curvature support structure comprising an organic compound to a surface of a semiconductor die;

inducing warpage greater than 200 microns in the surface of the semiconductor die using the die curvature support structure prior to directly bonding a second surface of the semiconductor die opposite the surface of the semiconductor die facing the die curvature support structure to a curved surface;

wherein the die curvature support structure is configured to one of rotate or bend against the surface of the semiconductor die to induce warpage in the surface of the semiconductor die.

2. The method of claim 1 , wherein inducing warpage further comprises rotating the die curvature support structure against the surface of the semiconductor die.

3. The method of claim 1 , wherein inducing warpage further comprises pressing the die curvature support structure against the surface of the semiconductor die.

4. The method of claim 1 , wherein coupling the die curvature support structure further comprises bonding to a bonding structure on the surface of the semiconductor die.

5. The method of claim 1 , wherein the semiconductor die is between 0.1 microns and 125 microns in thickness.

6. The method of claim 1 , wherein the die curvature support structure comprises a rib, wherein the rib is configured to bend against the surface of the semiconductor die.

7. The method of claim 6 , wherein the rib is configured to bend at a thinned portion of the rib.

8. The method of claim 1 , wherein a curvature of the warpage is determined by a structure of the organic compound.

9. The method of claim 1 , wherein the die curvature support structure is temporary.

10. The method of claim 9 , wherein the die curvature support structure is substantially hemispherical.

11. The method of claim 1 , wherein the die curvature support structure is configured to contact and one of rotate or bend against the surface of the semiconductor die to induce warpage in the surface of the semiconductor die.

12. The method of claim 1 , wherein a longest length of the semiconductor die is greater than a longest length of the die curvature support structure.

13. The method of claim 1 , wherein a perimeter of the die curvature support structure is within a perimeter of the semiconductor die.

14. The method of claim 1 , wherein the curved semiconductor die system comprises a single die.

15. A method of forming a curved semiconductor die system, the method comprising:

coupling a die curvature support structure comprising an organic compound to a surface of a semiconductor die, wherein the organic compound is one of uncured or partially cured at a time of coupling to the surface of the semiconductor die;

inducing warpage greater than 200 microns in the surface of the semiconductor die through curing the die curvature support structure prior to bonding the semiconductor die to a curved surface.

16. A method of forming a curved semiconductor die system, the method comprising:

warping a first surface of a semiconductor die directly against a forming surface to greater than 200 microns, wherein the forming surface is directly coupled to a concave side of the semiconductor die;

applying an organic material to an entirety of a second surface of the semiconductor die, the first surface opposite the second surface; and

releasing the semiconductor die from the forming surface;

wherein after covering the second surface with the organic material, the semiconductor die is warped to permit bonding with a curved surface.

17. The method of claim 16 , further comprising singulating the organic material on the second surface of the semiconductor die.

18. The method of claim 16 , wherein the organic material covers a plurality of sidewalls of the semiconductor die between the first surface and the second surface.

19. The method of claim 18 , wherein the organic material is a single and continuous material.

Assignments (3)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL 053613, FRAME 0621 Recorded Aug 17, 2023
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC; FAIRCHILD SEMICONDUCTOR CORPORATION
Reel/Frame 064618/0942 →
SECURITY INTEREST Recorded Aug 27, 2020
From: FAIRCHILD SEMICONDUCTOR CORPORATION; SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 053613/0621 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2020
From: SEDDON, MICHAEL J.; CARNEY, FRANCIS J.
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Reel/Frame 052529/0252 →
Continuity (1)
Related Publication 20210343574A1 · Nov 4, 2021
Cited By (1)
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