IP Library Granted Patent US 7,968,979
Granted Patent B2
US 7,968,979 · App. 12/146,124 · Granted Jun 28, 2011

Integrated circuit package system with conformal shielding and method of manufacture thereof

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Quick Facts
Patent No.
US 7,968,979
App. No.
12/146,124
Granted
Jun 28, 2011
Kind
B2
Abstract

An integrated circuit package system includes: providing a substrate with an integrated circuit mounted thereover; mounting a structure, having ground pads, over the integrated circuit; encapsulating the integrated circuit with an encapsulation while leaving the structure partially exposed; and attaching a conformal shielding to the encapsulation and electrically connected to the grounding pads.

Claims (69)

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

providing a substrate with an integrated circuit mounted thereover;

mounting a structure, having grounding pads, over the integrated circuit;

encapsulating the integrated circuit with an encapsulation, having a side exterior surface and a top exterior surface, while leaving the structure partially exposed; and

attaching a conformal shielding to the side exterior surface and to the top exterior surface of the encapsulation and with the conformal shielding on and around the perimeter of a side of the structure opposite the integrated circuit and electrically connected to the grounding pads.

2. The method as claimed in claim 1 wherein:

mounting the structure includes mounting an interposer, or an exposed integrated circuit die.

3. The method as claimed in claim 1 wherein:

attaching the conformal shielding to the encapsulation includes attaching a protective cover above the structure leaving substantial portions of the grounding pads exposed.

4. The method as claimed in claim 1 further comprising:

attaching the conformal shielding to a vertical edge of the substrate, or singulating the substrate having a vertical edge exposed.

5. The method as claimed in claim 1 wherein:

attaching the conformal shielding to the encapsulation and electrically connected to the grounding pads includes connecting the conformal shield to the grounding pads with a conductive stiffener ring.

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

providing a substrate with grounding pads and with an integrated circuit attached thereto with a die attach adhesive;

mounting a structure, having grounding pads, over the integrated circuit;

connecting the structure and the integrated circuit to the substrate with a bond wire;

encapsulating the integrated circuit with an encapsulation, having a side exterior surface and a top exterior surface, while leaving the structure partially exposed; and

attaching a conformal shielding to the side exterior surface and to the top exterior surface of the encapsulation and with the conformal shielding on and around the perimeter of a side of the structure opposite the integrated circuit and electrically connected to the grounding pads.

7. The method as claimed in claim 6 further comprising:

mounting a shielding cage below the interposer;

connecting the shielding cage to the grounding pads on the interposer; and

wherein:

encapsulating the integrated circuit includes encapsulating the shielding cage.

8. The method as claimed in claim 6 further comprising:

mounting a shielding cage below the interposer;

connecting the shielding cage to the grounding pads on the substrate; and

wherein:

encapsulating the integrated circuit includes encapsulating the shielding cage.

9. The method as claimed in claim 6 further comprising:

mounting a shielding cage above the interposer; and

connecting the shielding cage to the grounding pads on the interposer.

10. The method as claimed in claim 6 further comprising:

mounting a shielding cage below the substrate; and

connecting the shielding cage to the grounding pads on the substrate.

11. An integrated circuit package system comprising:

a substrate with an integrated circuit mounted thereover;

a structure, having grounding pads, mounted over the integrated circuit;

an encapsulation, having a side exterior surface and a top exterior surface, encapsulating the integrated circuit while leaving the structure partially exposed; and

a conformal shielding attached to the side exterior surface and to the top exterior surface of the encapsulation and with the conformal shielding on and around the perimeter of a side of the structure opposite the integrated circuit and electrically connected to the grounding pads.

12. The system as claimed in claim 11 wherein:

the structure is an interposer.

13. The system as claimed in claim 11 wherein:

the structure is an exposed integrated circuit die.

14. The system as claimed in claim 11 further comprising:

a vertical edge of the substrate with the conformal shielding attached thereto, or a vertical edge of the substrate is exposed.

15. The system as claimed in claim 11 wherein:

the conformal shield is connected to the grounding pads with a conductive stiffener ring.

16. The system as claimed in claim 11 further comprising:

grounding pads on the substrate and the integrated circuit attached thereto with a die attach adhesive; and

a bond wire connecting the structure and the integrated circuit to the substrate.

17. The system as claimed in claim 16 further comprising:

a shielding cage below the interposer;

wherein:

the shielding cage is connected to the grounding pads on the interposer; and

the shielding cage is encapsulated with the encapsulation.

18. The system as claimed in claim 16 further comprising:

a shielding cage below the interposer;

wherein:

the shielding cage is connected to the grounding pads on the substrate; and

the shielding cage is encapsulated with the encapsulation.

19. The system as claimed in claim 16 further comprising:

a shielding cage mounted above the interposer; and

wherein:

the shielding cage is connected to the grounding pads on the interposer.

20. The system as claimed in claim 16 further comprising:

a shielding cage mounted below the substrate; and

wherein:

the shielding cage is connected to the grounding pads on the substrate.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME PREVIOUSLY RECORDED AT REEL: 038378 FRAME: 0301. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Aug 31, 2023
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 064913/0352 →
RELEASE OF SECURITY INTEREST Recorded Jun 11, 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 052907/0650 →
CHANGE OF NAME Recorded Apr 7, 2016
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTE.
Reel/Frame 038378/0301 →
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 14, 2008
From: PAGAILA, REZA ARGENTY; CHUA, LINDA PEI EE; DO, BYUNG TAI
To: STATS CHIPPAC LTD.
Reel/Frame 021235/0619 →