IP Library Granted Patent US 7,915,738
Granted Patent B2
US 7,915,738 · App. 12/615,195 · Granted Mar 29, 2011

Stackable multi-chip package system with support structure

Assignee: Stats Chippac Ltd.
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Quick Facts
Patent No.
US 7,915,738
App. No.
12/615,195
Granted
Mar 29, 2011
Kind
B2
Abstract

A stackable multi-chip package system is provided including forming an external interconnect, having a base and a tip, and a paddle; mounting a first integrated circuit die over the paddle; stacking a second integrated circuit die over the first integrated circuit die in a active side to active side configuration; connecting the first integrated circuit die and the base; connecting the second integrated circuit die and the base; and molding the first integrated circuit die, the second integrated circuit die, the paddle, and the external interconnect with the external interconnect partially exposed.

Claims (29)

1. A stackable multi-chip package system comprising:

external interconnects, wherein each of the external interconnects having a base and a tip;

a paddle;

a first integrated circuit die over the paddle;

a second integrated circuit die over the first integrated circuit die in an active side to active side configuration;

a first internal interconnect between the first integrated circuit die and an inner portion of the base connected to the first integrated circuit die;

a second internal interconnect between the second integrated circuit die and the inner portion of the base connected to the second integrated circuit die includes the external interconnect connected to the second integrated circuit die is in an inverted configuration to the external interconnect connected to the first integrated circuit die; and

an encapsulation to cover the first integrated circuit die, the second integrated circuit die, the paddle, and the external interconnect with the external interconnect partially exposed.

2. The system as claimed in claim 1 further comprising a first stackable multi-chip package system over a second stackable multi-chip package system.

3. The system as claimed in claim 1 further comprising:

a first stackable multi-chip package system over a substrate;

a second stackable multi-chip package system over the first stackable multi-chip package system; and

a package encapsulation to cover the first stackable multi-chip package system and the

second stackable multi-chip package system with the substrate.

4. The system as claimed in claim 1 wherein the second integrated circuit die over the first integrated circuit die in the face-to-face configuration has a second active side of the second integrated circuit die facing the first active side of the first integrated circuit die.

5. The system as claimed in claim 1 wherein:

the external interconnect is a L-shape external interconnect, having the base and the tip;

the paddle is a die-attach paddle;

the first integrated circuit die is on the paddle with an adhesive;

the second integrated circuit die over the first integrated circuit die is an offset and active side to active side configuration;

the interconnect, between the first integrated circuit die and the external interconnect, is to an inner portion of the base;

the interconnect, between the second integrated circuit die and the external interconnect, is to the inner portion of the base; and

the encapsulation is a cover for the first integrated circuit die and a partial cover for the second integrated circuit die, the paddle, and the external interconnect.

6. The system as claimed in claim 5 wherein the encapsulation is a cover for the first integrated circuit die and a partial cover for the second integrated circuit die, the paddle, and the external interconnect includes:

a second non-active side of the second integrated circuit die exposed; and

a side of the paddle opposite the first integrated circuit die exposed.

7. The system as claimed in claim 5 wherein the die-attach paddle is comprised of a conductive material having planar rigidity.

8. The system as claimed in claim 5 further comprising dual rows of lands with bases and tips exposed in alternating positions.

9. The system as claimed in claim 5 wherein the die-attach paddle is an electromagnetic interference shield.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2025
From: STATS CHIPPAC PTE. LTD.
To: STATS CHIPPAC MANAGEMENT PTE. LTD.
Reel/Frame 072788/0917 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME ON COVER SHEET FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC PTE. LTD. PREVIOUSLY RECORDED ON REEL 064783 FRAME 0896. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECTIVE CHANGE OF NAME. Recorded Sep 22, 2023
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 065015/0917 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME ON COVERSHEET FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC PTE. LTD. PREVIOUSLY RECORDED ON REEL 038378 FRAME 0292. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Sep 14, 2023
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 064962/0123 →
CORRECT ERROR IN ASSIGNMENT NAME FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC PTE. LTD. (REEL: 038378 FRAME: 0292) Recorded Aug 30, 2023
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE.LTE.
Reel/Frame 064783/0896 →
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 038378/0292 →
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 →
Continuity (2)
Division 11462568 · Aug 4, 2006
Related Publication 20100052117A1 · Mar 4, 2010