IP Library Granted Patent US 7,683,461
Granted Patent B2
US 7,683,461 · App. 11/459,320 · Granted Mar 23, 2010

Integrated circuit leadless package system

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Quick Facts
Patent No.
US 7,683,461
App. No.
11/459,320
Granted
Mar 23, 2010
Kind
B2
Abstract

An integrated circuit leadless package system includes forming a lead, attaching an integrated circuit die to the lead, and applying an encapsulant including a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die.

Claims (31)

1. An integrated circuit leadless package system comprising:

forming a lead;

forming a row-two lead next to the lead;

attaching an integrated circuit die to the lead or the row-two lead; and

applying an encapsulant including a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die and the row-two lead, the thin encapsulant region having a planar top surface over and substantially parallel to a flange region of the lead.

2. The system as claimed in claim 1 wherein applying the encapsulant comprises providing a bottom surface of the lead substantially exposed.

3. The system as claimed in claim 1 further comprising forming a row-three lead.

4. The system as claimed in claim 1 wherein attaching an integrated circuit die comprises attaching a connection to the integrated circuit die and the lead.

5. An integrated circuit leadless package system comprising:

forming a lead and a lead extension;

forming a row-two lead connected to the lead extension:

connecting an integrated circuit die to the lead and the lead extension; and

forming a protective surface of an encapsulant over the lead and the lead extension having a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die and the row-two lead, the thin encapsulant region having a planar top surface over and substantially parallel to a flange region of the lead.

6. The system as claimed in claim 5 wherein forming the protective surface comprises providing the lead substantially undeformed.

7. The system as claimed in claim 5 further comprising forming a row-three lead nearest a die paddle.

8. The system as claimed in claim 5 wherein forming the protective surface comprises forming a bottom surface of the lead substantially exposed.

9. An integrated circuit leadless package system comprising:

a lead;

a row-two lead next to the lead;

an integrated circuit die attached to the lead or the row-two lead; and

an encapsulant including a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die and the row-two lead, the thin encapsulant region having a planar top surface over and substantially parallel to a flange region of the lead.

10. The system as claimed in claim 9 wherein the encapsulant comprises a bottom surface of the lead substantially exposed.

11. The system as claimed in claim 9 further comprising a row-three lead.

12. The system as claimed in claim 9 wherein an integrated circuit die comprises a connection to the integrated circuit die and the lead.

13. The system as claimed in claim 9 wherein:

the lead is a lead and a lead extension;

the integrated circuit die is an integrated circuit die connected to the lead and the lead extension; and

the encapsulant is a protective surface of an encapsulant over the lead and the lead extension having a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die.

14. The system as claimed in claim 13 wherein the protective surface comprises the lead substantially undeformed.

15. The system as claimed in claim 13 further comprising a row-three lead formed nearest a die paddle.

16. The system as claimed in claim 13 wherein the protective surface comprises a bottom surface of the lead substantially exposed.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC LTD. AND CORRECT THE NAME OF RECEIVING PARTY DATA FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC PTE. LTD. PREVIOUSLY RECORDED AT REEL: 64838 FRAME: 948. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded May 29, 2024
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTD.
Reel/Frame 067534/0872 →
CORRECT ERROR IN ASSIGNMENT NAME FROM STATS CHIPPAC PTE. LTE. TO STATS CHIPPAC PTE. LTD. (REEL: 038378 FRAME: 0328 Recorded Aug 30, 2023
From: STATS CHIPPAC PTE. LTE.
To: STATS CHIPPAC PTE. LTE.
Reel/Frame 064838/0948 →
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 052935/0327 →
CHANGE OF NAME Recorded Apr 7, 2016
From: STATS CHIPPAC LTD.
To: STATS CHIPPAC PTE. LTE.
Reel/Frame 038378/0328 →
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 21, 2006
From: LAU, KENG KIAT
To: STATS CHIPPAC LTD.
Reel/Frame 017977/0572 →