IP Library Granted Patent US 9,299,675
Granted Patent B2
US 9,299,675 · App. 14/688,976 · Granted Mar 29, 2016

Embedded die ball grid array package

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Quick Facts
Patent No.
US 9,299,675
App. No.
14/688,976
Granted
Mar 29, 2016
Kind
B2
Abstract

A method of assembling a semiconductor package includes attaching a semiconductor die to a frame having a strip or panel form. The semiconductor die has at least one stud bump. The die and the stud bump are covered with a first encapsulation material, and then at least a portion of the stud bump is exposed. At least one die conductive member is formed on the first encapsulation material and electrically coupled to the stud bump. The die conductive member is covered with a second encapsulation material, and then at least a portion of the die conductive member is exposed. At least one grid array conductive member is formed on the second encapsulation material and electrically coupled to the die conductive member. Finally, at least one solder ball is attached to the at least one grid array conductive member.

Claims (13)

1. A semiconductor package, comprising:

a semiconductor die having opposing first and second main surfaces, wherein the second main surface includes a plurality of pads for communication with internal circuitry of the semiconductor die;

at least one stud bump formed on one of the pads on the second main surface of the semiconductor die;

at least one die conductive member electrically coupled to the at least one stud bump;

at least one grid array conductive member electrically coupled to the at least one die conductive member;

an encapsulation material encapsulating the semiconductor die, the at least one stud bump, and the at least one die conductive member, wherein at least a portion of the at least one grid array conductive member is exposed through the encapsulation material; and

a solder ball electrically coupled to the at least one grid array conductive member.

2. The semiconductor package of claim 1 , further comprising a solder mask formed on the encapsulation material.

3. The semiconductor package of claim 2 , wherein the solder mask includes at least one opening through which the solder ball is electrically coupled to the at least one grid array conductive member.

4. The semiconductor package of claim 1 , further comprising at least one intermediate conductive member formed on the encapsulation material on a surface opposite to the solder ball, the at least one intermediate conductive member electrically coupling the at least one die conductive member to the at least one grid array conductive member.

5. The semiconductor package of claim 1 , wherein the encapsulation material is an epoxy.

6. The semiconductor package of claim 1 , further comprising a frame, wherein the first surface of the semiconductor die is attached to the frame.

7. The semiconductor package of claim 6 , wherein a portion of the encapsulation material separates the first main surface of the semiconductor die from the frame.

Assignments (15)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040925 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Feb 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V. F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 052917/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040928 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Jan 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 052915/0001 →
RELEASE OF SECURITY INTEREST Recorded Sep 10, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 050744/0097 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NATURE OF CONVEYANCE PREVIOUSLY RECORDED AT REEL: 040632 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER AND CHANGE OF NAME. Recorded Sep 21, 2017
From: FREESCALE SEMICONDUCTOR INC.
To: NXP USA, INC.
Reel/Frame 044209/0047 →
CHANGE OF NAME Recorded Nov 8, 2016
From: FREESCALE SEMICONDUCTOR, INC.
To: NXP USA, INC.
Reel/Frame 040632/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 040928/0001 →
RELEASE OF SECURITY INTEREST Recorded Sep 21, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V., F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 040925/0001 →
SUPPLEMENT TO THE SECURITY AGREEMENT Recorded Jun 16, 2016
From: FREESCALE SEMICONDUCTOR, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 039138/0001 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 20, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037565/0510 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 20, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037565/0527 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037357/0859 →
SUPPLEMENT TO IP SECURITY AGREEMENT Recorded Aug 6, 2015
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 036284/0105 →
SUPPLEMENT TO IP SECURITY AGREEMENT Recorded Aug 6, 2015
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 036284/0363 →
SUPPLEMENT TO IP SECURITY AGREEMENT Recorded Aug 6, 2015
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 036284/0339 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2015
From: KALANDAR, NAVAS KHAN ORATTI; LOW, BOON YEW; MUNIANDY, KESVAKUMAR V.C.
To: FREESCALE SEMICONDUCTOR,INC
Reel/Frame 035430/0956 →