IP Library Granted Patent US 7,449,369
Granted Patent B2
US 7,449,369 · App. 11/338,328 · Granted Nov 11, 2008

Integrated circuit package system with multiple molding

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Quick Facts
Patent No.
US 7,449,369
App. No.
11/338,328
Granted
Nov 11, 2008
Kind
B2
Abstract

An integrated circuit package system is provided forming a lead from a padless lead frame, and encapsulating the lead for supporting an integrated circuit die with a first molding compound for encapsulation with a second molding compound.

Claims (33)

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

forming a lead from a padless lead frame; and

encapsulating the lead for supporting an integrated circuit die with a first molding compound for encapsulation with a second molding wherein encapsulating the lead for supporting the integrated circuit die with the first molding compound for encapsulation with the second molding compound comprises:

encapsulating the lead of the padless lead frame having a space with the first molding compound;

attaching the integrated circuit die on the first molding compound;

connecting an electrical interconnect between the integrated circuit die and the lead; and

encapsulating the integrated circuit die, the electrical interconnect, and a portion of the top of the lead with the second molding compound.

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

forming a lead from a padless lead frame; and

encapsulating the lead for supporting an integrated circuit die with a first molding compound for encapsulation with a second molding compound, wherein encapsulating the lead for supporting the integrated circuit die with the first molding compound for encapsulation with the second molding compound comprises:

encapsulating a bottom of an inner portion of the lead of the padless lead frame with the first molding compound;

attaching the integrated circuit die on the first molding compound with an adhesive;

connecting an electrical interconnect between the integrated circuit die and the lead; and

encapsulating the integrated circuit die, the electrical interconnect, and the inner portion of the lead with the second molding compound from a top of the inner portion of the lead.

3. The method as claimed in claim 1 wherein forming the lead from the padless lead frame comprises forming a support from a corner of the padless lead frame to a diagonal corner of the padless lead frame.

4. The method as claimed in claim 1 wherein forming the lead from the padless lead frame comprises:

forming a support from a corner of the padless lead frame to a diagonal corner of the padless lead frame; and

forming a ground ring with a connection between the support at the corner to the support at an adjacent corner.

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

forming a lead from a padless lead frame;

encapsulating the lead with a first molding compound;

attaching an integrated circuit die on the first molding compound with an adhesive; and

encapsulating the integrated circuit die and the lead with a second molding compound.

6. The method as claimed in claim 5 wherein forming the lead from the padless lead frame comprises forming a support segment at a corner of the padless lead frame.

7. The method as claimed in claim 5 wherein forming the lead from the padless lead frame comprises:

forming a support segment at a corner of the padless lead frame; and

forming a ground ring with a connection between the support segment at the corner to the support segment at an adjacent corner.

8. The method as claimed in claim 5 further comprising attaching an electrical interconnect between the integrated circuit die and the lead.

9. The method as claimed in claim 5 wherein encapsulating the integrated circuit die, the electrical interconnect, and the lead with the second molding compound comprises forming a hermetic seal with the first molding compound and the second molding compound.

10. The method as claimed in claim 2 wherein forming the lead from the padless lead frame comprises forming a support from a corner of the padless lead frame to a diagonal corner of the padless lead frame.

11. The method as claimed in claim 2 wherein forming the lead from the padless lead frame comprises:

forming a support from a corner of the padless lead frame to a diagonal corner of the padless lead frame; and

forming a ground ring with a connection between the support at the corner to the support at an adjacent corner.

Assignments (5)
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 Mar 9, 2006
From: CAMACHO, ZIGMUND RAMIREZ; CAPARAS, JOSE ALVIN; TRASPORTO, ARNEL; PUNZALAN, JEFFREY D.
To: STATS CHIPPAC LTD.
Reel/Frame 017279/0988 →