IP Library Granted Patent US 11,935,777
Granted Patent B2
US 11,935,777 · App. 17/457,155 · Granted Mar 19, 2024

Semiconductor manufacturing equipment and method of providing support base with filling material disposed into openings in semiconductor wafer for support

Inventors: HyeonChul Lee (Incheon, KR); HunTeak Lee (Gyeongi-do, KR); HyunSu Tak (Incheon, KR); Wanil Lee (Incheon, KR); InHo Seo (Seoul, KR)
Assignee: STATS ChipPAC Pte Ltd.
H01L21/6835H01L21/561H01L21/77
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Quick Facts
Patent No.
US 11,935,777
App. No.
17/457,155
Granted
Mar 19, 2024
Kind
B2
Abstract

A semiconductor device is manufactured using a support base and a filling material formed on the support base. The filling material can be a plurality of protrusions or penetrable film. The protrusions are attached to the support base with an adhesive. The protrusions have a variety of shapes such as square frustum, conical frustum, three-sided pyramid with a flat top, four-sided rectangular body, and elongated square frustum. A semiconductor wafer is disposed over the support base with the filling material extending into openings in the semiconductor wafer. The openings in the semiconductor wafer can have slanted sidewalls, or a more complex shape such as ledges and vertical projections. The filling material may substantially fill the openings in the semiconductor wafer. The protrusions may partially fill the openings in the semiconductor wafer. The protrusions occupy at least a center of the openings in the semiconductor wafer.

Claims (47)

1. A method of making a semiconductor device, comprising:

providing a support base adapted for rotating about an axis or providing linear motion;

forming a plurality of protrusions on the support base;

providing a semiconductor wafer;

depositing an encapsulant over the semiconductor wafer;

forming a plurality of openings in the encapsulant; and

disposing the semiconductor wafer over the support base with the protrusions extending into the openings in the encapsulant to contact a bottom surface of the openings and provide structural support and alignment of the semiconductor wafer and rotation or linear motion for the semiconductor wafer.

2. The method of claim 1 , further including attaching the protrusions to the support base with an adhesive.

3. The method of claim 1 , wherein the protrusions substantially fill the openings in the encapsulant.

4. The method of claim 1 , wherein the protrusions partially fill the openings in the encapsulant.

5. The method of claim 1 , wherein the protrusions include a shape selected from a group consisting of a square frustum, conical frustum, three-sided pyramid with a flat top, and four-sided rectangular body, and elongated square frustum.

6. The method of claim 1 , wherein the protrusions occupy a center of the openings in the encapsulant.

7. A method of making a semiconductor device, comprising:

providing a support base adapted for rotating about an axis or providing linear motion;

forming a filling material on the support base;

providing a semiconductor wafer;

depositing an encapsulant over the semiconductor wafer;

forming an opening in the encapsulant; and

disposing the semiconductor wafer over the support base with the filling material extending into the opening in the encapsulant to contact a bottom surface of the opening and provide rotation or linear motion for the semiconductor wafer.

8. The method of claim 7 , wherein the filling material substantially fills the opening in the encapsulant.

9. The method of claim 7 , wherein the filling material includes a penetrable film.

10. The method of claim 7 , wherein the filling material includes a protrusion.

11. The method of claim 10 , further including attaching the protrusion to the support base with an adhesive.

12. The method of claim 10 , wherein the protrusion partially fills the openings in the encapsulant.

13. The method of claim 10 , wherein the protrusion includes a shape selected from a group consisting of a square frustum, conical frustum, three-sided pyramid with a flat top, and four-sided rectangular body, and elongated square frustum.

14. A semiconductor manufacturing equipment, comprising:

a support base adapted for rotating about an axis or providing linear motion;

a plurality of protrusions formed on the support base;

a semiconductor wafer; and

an encapsulant deposited over the semiconductor wafer;

wherein the semiconductor wafer is disposed over the support base with the protrusions extending into openings in the encapsulant to contact a bottom surface of the openings and provide rotation or linear motion for the semiconductor wafer.

15. The semiconductor manufacturing equipment of claim 14 , wherein the protrusions include a shape selected from a group consisting of a square frustum, conical frustum, three-sided pyramid with a flat top, and four-sided rectangular body, and elongated square frustum.

16. The semiconductor manufacturing equipment of claim 14 , wherein the protrusions are attached to the support base with an adhesive.

17. The semiconductor manufacturing equipment of claim 14 , wherein the protrusions substantially fill the openings in the encapsulant.

18. The semiconductor manufacturing equipment of claim 14 , wherein the protrusions partially fill the openings in the encapsulant.

19. The semiconductor manufacturing equipment of claim 14 , wherein the protrusions occupy a center of the openings in the encapsulant.

20. A semiconductor manufacturing equipment, comprising:

a support base adapted for rotating about an axis or providing linear motion;

a filling material formed on the support base; and

a semiconductor wafer; and

an encapsulant deposited over the semiconductor wafer;

wherein the semiconductor wafer is disposed over the support base with the filling material extending into an opening in the encapsulant to contact a bottom surface of the opening and provide rotation or linear motion for the semiconductor wafer.

21. The semiconductor manufacturing equipment of claim 20 , wherein the filling material substantially fills the opening in the encapsulant.

22. The semiconductor manufacturing equipment of claim 20 , wherein the filling material includes a penetrable film.

23. The semiconductor manufacturing equipment of claim 20 , wherein the filling material includes a protrusion.

24. The semiconductor manufacturing equipment of claim 20 , wherein the protrusion is attached to the support base with an adhesive.

25. The semiconductor manufacturing equipment of claim 20 , wherein the protrusion partially fills the opening in the encapsulant.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2025
From: STATS CHIPPAC PTE. LTD.
To: STATS CHIPPAC MANAGEMENT PTE. LTD.
Reel/Frame 072788/0917 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2021
From: LEE, HYEONCHUL; LEE, HUNTEAK; TAK, HYUNSU; LEE, WANIL; SEO, INHO
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 058259/0124 →
Continuity (1)
Related Publication 20230170242A1 · Jun 1, 2023