IP Library Granted Patent US 8,148,771
Granted Patent B2
US 8,148,771 · App. 12/837,323 · Granted Apr 3, 2012

Semiconductor device and method to manufacture thereof

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,148,771
App. No.
12/837,323
Granted
Apr 3, 2012
Kind
B2
Abstract

A semiconductor device 100 includes a semiconductor substrate 14 , a connection electrode 12 disposed on an upper surface of the semiconductor substrate 14 and connected to an integrated circuit thereon, a through electrode 20 which penetrates the semiconductor substrate 14 and the connection electrode 20 , and an insulation portion 30 interposed between the semiconductor substrate 14 and the through electrode 20 . The through electrode 20 is integrally formed to protrude outward from upper surfaces of the semiconductor substrate 14 and the connection electrode 12 , and connected to the connection electrode 12 in a region where the through electrode 20 penetrates the connection electrode 12.

Claims (47)

1. A semiconductor device comprising:

a semiconductor substrate;

a connection electrode connected to an integrated circuit on the semiconductor substrate;

a through electrode which penetrates the semiconductor substrate and the connection electrode; and

an insulation portion interposed between the semiconductor substrate and the through electrode, wherein

the through electrode is connected to the connection electrode in a region where the through electrode penetrates the connection electrode.

2. The semiconductor device according to claim 1 , wherein:

the semiconductor substrate includes a first through hole which penetrates the semiconductor substrate, and a second through hole which vertically penetrates the insulation portion inside the first through hole;

the insulation portion is disposed inside the first through hole; and

the through electrode is disposed inside the second through hole.

3. The semiconductor device according to claim 2 , wherein:

the first through hole is tapered in a direction from the upper surface to a lower surface of the semiconductor substrate;

the insulation portion is formed to fill the first through hole; and

the second through hole is tapered from the lower surface to the upper surface of the semiconductor substrate.

4. A method of manufacturing a semiconductor device comprising:

bonding a first support member formed of a support base material and a support adhesive agent on an upper surface of a semiconductor substrate provided with a connection electrode by directing the support adhesive agent downward;

forming a first through hole which penetrates the semiconductor substrate;

forming an insulation portion inside the first through hole;

forming a second through hole which vertically penetrates the insulation portion and the connection electrode, and further penetrates the support adhesive agent inside the first through hole; and

forming a through electrode in a region corresponding to the semiconductor substrate, the connection electrode and the support adhesive agent inside the second through hole.

5. The method of manufacturing the semiconductor device according to claim 4 , wherein:

the first support member is provided with a stopper layer interposed between the support base material and the support adhesive agent; and

forming the second through hole includes forming the second through hole which penetrates the insulation portion, the connection electrode and the support adhesive agent from a lower surface of the semiconductor substrate to reach the stopper layer.

6. The method for manufacturing the semiconductor device according to claim 4 , further comprising a first bonding pump in a region corresponding to the support adhesive agent inside the second through hole.

7. The method for manufacturing the semiconductor device according to claim 4 , further comprising:

bonding a second support member to a lower surface of the semiconductor substrate; and forming a second bonding bump to a lower surface of the through electrode using the second support member as a mask after eliminating the support adhesive agent and the support base material, wherein:

forming the second through hole includes forming the second through hole which penetrates the second support member, the insulation portion, the connection electrode, and the support adhesive agent inside the first through hole; and

forming the electrode includes forming the through electrode using the second support member as the mask.

8. The method for manufacturing the semiconductor device according to claim 4 , wherein:

forming the first through hole includes eliminating the semiconductor substrate in a direction from an upper surface to a lower surface thereof; and

forming the second through hole includes eliminating the insulation portion, the connection electrode and the support adhesive agent in the direction from the lower surface to the upper surface of the semiconductor substrate.

9. The semiconductor device according to claim 1 , wherein:

the connection electrode is disposed on an upper surface of the semiconductor substrate.

10. The semiconductor device according to claim 1 , wherein: the through electrode is integrally formed.

11. The semiconductor device according to claim 1 , wherein:

the through electrode protrudes outward from an upper surface of the semiconductor substrate and the connection electrode.

12. The method of manufacturing the semiconductor device according to claim 4 , further comprising:

forming the through electrode integrally.

13. The semiconductor device according to claim 3 wherein:

the insulation portion may be formed as a film applied to the inner surface of the first through hole.

14. The semiconductor device according to claim 11 , further comprising at least one of a first bonding bump formed on an upper surface of the through electrode and a second bonding bump formed on a lower surface of the through electrode.

15. A semiconductor device wherein:

a plurality of the semiconductor devices according to claim 11 are stacked; and

vertically stacked semiconductor devices among the plurality of the semiconductor devices are connected with each other via the through electrode.

16. A semiconductor device wherein:

a plurality of the semiconductor devices according to claim 14 are stacked; and

the through electrode of vertically stacked semiconductor devices among the plurality of the semiconductor devices are connected with each other via the bonding bump.

Assignments (7)
CORRECTIVE ASSIGNMENT TO CORRECT THE 8647899 PREVIOUSLY RECORDED ON REEL 035240 FRAME 0429. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTERST. Recorded Nov 3, 2020
From: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 058002/0470 →
RELEASE OF SECURITY INTEREST Recorded Dec 22, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
Reel/Frame 041175/0939 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2016
From: CYPRESS SEMICONDUCTOR CORPORATION
To: MONTEREY RESEARCH, LLC
Reel/Frame 040908/0960 →
RELEASE OF SECURITY INTEREST Recorded Nov 8, 2016
From: BARCLAYS BANK PLC, AS COLLATERAL AGENT
To: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY LLC; SPANSION TECHNOLOGY INC.
Reel/Frame 040252/0711 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2015
From: SPANSION, LLC
To: CYPRESS SEMICONDUCTOR CORPORATION
Reel/Frame 036051/0001 →
SECURITY INTEREST Recorded Mar 21, 2015
From: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 035240/0429 →
SECURITY AGREEMENT Recorded Aug 23, 2012
From: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY INC.; SPANSION TECHNOLOGY LLC
To: BARCLAYS BANK PLC
Reel/Frame 028840/0001 →