IP Library Granted Patent US 7,829,984
Granted Patent B2
US 7,829,984 · App. 12/146,101 · Granted Nov 9, 2010

Integrated circuit package system stackable devices

Assignee: Stats Chippac Ltd.
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Quick Facts
Patent No.
US 7,829,984
App. No.
12/146,101
Granted
Nov 9, 2010
Kind
B2
Abstract

An integrated circuit package system includes: providing a finger lead having a side with an outward exposed area and an inward exposed area separated by a lead cavity; positioning a chip adjacent the finger lead and connected to the finger lead; and a stack encapsulant encapsulating the chip and the finger lead with the outward exposed area and the inward exposed area of the finger lead substantially exposed.

Claims (35)

1. A method for manufacturing an integrated circuit package system comprising:

providing a filler;

forming a finger lead covering the filler and having a side with an outward exposed area and an inward exposed area separated by a lead cavity formed by the filler and having an internal lead surface on the side opposite the lead cavity;

forming a second coating layer on a side opposite the outward exposed area and the inward exposed area;

positioning a chip adjacent the finger lead and connected with connectors to the internal lead surface of the finger lead; and

applying a stack encapsulant over the chip, the connectors, and the finger lead with the outward exposed area and the inward exposed area substantially exposed.

2. The method as claimed in claim 1 further comprising connecting a base module having a die with the outward exposed area of the finger lead.

3. The method as claimed in claim 1 further comprising forming a conductive layer over the lead cavity wherein the filler is substantially exposed adjacent the stack encapsulant.

4. The method as claimed in claim 1 wherein providing the finger lead includes forming a plurality of the finger leads with each having a different structural shape, adjacent a side of the chip with the inward exposed area closer together than the outward exposed area.

5. An integrated circuit package system comprising:

a filler;

a finger lead covering the filler and having a side with an outward exposed area and an inward exposed area separated by a lead cavity formed by the filler;

a conductive layer over the lead cavity;

a chip positioned adjacent the finger lead and connected to the finger lead; and

a stack encapsulant applied over the chip and the finger lead with the outward exposed area and the inward exposed area of the finger lead substantially exposed.

6. The system as claimed in claim 5 further comprising a base module connected with the outward exposed area of the finger lead.

7. The system as claimed in claim 5 further comprising a first coating layer formed on the outward exposed area and the inward exposed area.

8. The system as claimed in claim 5 wherein a plurality of the finger leads formed adjacent a side of the chip with the inward exposed area closer together than the outward exposed area.

9. The system as claimed in claim 5 wherein:

the finger lead having a side with the outward exposed area and the inwards exposed area separated by the lead cavity and having an internal lead surface on the side opposite the lead cavity;

the chip adjacent the finger lead and connected with connectors to the internal lead surface of the finder lead; and

the stack encapsulant applied over the chip, the connectors, and the finger lead with the outward exposed area and the inward exposed area substantially exposed.

10. The system as claimed in claim 9 further comprising a base module having a die connected with the outward exposed area of the finger lead.

11. The system as claimed in claim 9 further comprising a conductive layer over the lead cavity adjacent the stack encapsulant.

12. The system as claimed in claim 9 wherein a plurality of the finger leads is each formed having a different structural shape, adjacent a side of the chip with the inward exposed area closer together than the outward exposed area.

13. The system as claimed in claim 9 further comprising a second coating layer formed on a side opposite the outward exposed area and the inward exposed area.

14. A method of manufacturing an integrated circuit package system comprising:

providing a filler;

forming a finger lead covering the filler and having a side with an outward exposed area and an inward exposed area separated by a lead cavity formed by the filler;

forming a conductive layer over the lead cavity;

positioning a chip adjacent the finder lead and connected to the finger lead; and

a stack encapsulant encapsulating the chip and the finder lead with the outward exposed area and the inward exposed area of the finger lead substantially exposed.

15. The method as claimed in claim 14 further comprising connecting a base module with the outward exposed area of the finger lead.

16. The method as claimed in claim 14 further comprising forming a first coating layer on the outward exposed area and the inward exposed area.

17. The method as claimed in claim 14 wherein providing the finer lead includes forming a plurality of the finder leads adjacent a side of the chip with the inward exposed area closer together than the outward exposed area.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ASSIGNEE'S NAME PREVIOUSLY RECORDED AT REEL: 038378 FRAME: 0309. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 11, 2023
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 065236/0767 →
RELEASE OF SECURITY INTEREST Recorded Jun 12, 2020
From: CITICORP INTERNATIONAL LIMITED, AS COMMON SECURITY AGENT
To: STATS CHIPPAC, INC.; STATS CHIPPAC PTE. LTD. FORMERLY KNOWN AS STATS CHIPPAC LTD.
Reel/Frame 052924/0007 →
CHANGE OF NAME Recorded Apr 7, 2016
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTE.
Reel/Frame 038378/0309 →
SECURITY INTEREST Recorded Aug 6, 2015
From: STATS CHIPPAC, INC.; STATS CHIPPAC LTD.
To: CITICORP INTERNATIONAL LIMITED, AS COMMON SECURITY AGENT
Reel/Frame 036288/0748 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2008
From: DO, BYUNG TAI; CHUA, LINDA PEI EE; KUAN, HEAP HOE
To: STATS CHIPPAC LTD.
Reel/Frame 021236/0256 →
Continuity (1)
Related Publication 20090321899A1 · Dec 31, 2009