IP Library Granted Patent US 7,456,088
Granted Patent B2
US 7,456,088 · App. 11/306,627 · Granted Nov 25, 2008

Integrated circuit package system including stacked die

Assignee: Stats Chippac Ltd.
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Quick Facts
Patent No.
US 7,456,088
App. No.
11/306,627
Granted
Nov 25, 2008
Kind
B2
Abstract

An integrated circuit package system is provided including providing a wafer with bond pads formed on the wafer. A solder bump is deposited on one or more bond pads. The bond pads and the solder bump are embedded within a mold compound formed on the wafer. A groove is formed in the mold compound to expose a portion of the solder bump. The wafer is singulated into individual die structures at the groove.

Claims (27)

1. An integrated circuit package system comprising:

providing a wafer with bond pads formed on the wafer;

depositing a solder bump on one or more bond pads;

embedding the bond pads and the solder bump within a mold compound formed on the wafer;

forming a groove in the mold compound to expose a portion of the solder bump; and

singulating the wafer at the groove into individual die structures.

2. The system as claimed in claim 1 wherein forming the groove further comprises:

removing a top portion of the mold compound and a top portion of a solder bump associated with a bond pad.

3. The system as claimed in claim 2 further comprising:

exposing the top portion of two adjacent solder bumps.

4. The system as claimed in claim 1 wherein singulating further comprises:

cutting the wafer and the mold compound between two adjacent bond pads.

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

planarizing the bottom exposed surface of the wafer.

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

providing a printed circuit board; and

connecting the exposed portion of the solder bump to the printed circuit board with electrical connectors,

wherein a combined height of the mold compound and the wafer is at least greater than a height of the electrical connectors.

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

stacking a second semiconductor structure on the mold compound; and

connecting the second semiconductor structure to the printed circuit board.

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

encapsulating the wafer, the mold compound, and the electrical connectors with an encapsulant.

9. The system as claimed in claim 7 further comprises:

providing a layer of film laminate on the mold compound and under the second semiconductor structure.

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

forming solder balls on the bottom surface of the printed circuit board.

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 →
CORRECT ERROR IN ASSIGNMENT NAME FROM STATS CHIPPAC, PTE. LTE TO STATS CHIPPAC PTE. LTD (REEL: 038378 FRAME: 0319) Recorded Aug 30, 2023
From: STATS CHIPPAC PTE. LTE.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 064760/0986 →
RELEASE OF SECURITY INTEREST Recorded Jun 15, 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 052938/0305 →
CHANGE OF NAME Recorded Apr 7, 2016
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTE.
Reel/Frame 038378/0319 →
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 30, 2008
From: PARK, SOO-SAN; KWON, HYEOG CHAN; LEE, SANG-HO; HA, JONG-WOO
To: STATS CHIPPAC LTD.
Reel/Frame 021318/0584 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2006
From: PARK, SOO-SAN; KWON, HYEOG CHAN; LEE, SANG-HO; HA, JONG-WOO
To: STATS CHIPPAC LTD.
Reel/Frame 016971/0733 →
Continuity (1)
Related Publication 20070158833A1 · Jul 12, 2007