IP Library Granted Patent US 8,093,722
Granted Patent B2
US 8,093,722 · App. 12/905,095 · Granted Jan 10, 2012

System-in-package with fan-out WLCSP

Assignee: Mediatek Inc.
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Quick Facts
Patent No.
US 8,093,722
App. No.
12/905,095
Granted
Jan 10, 2012
Kind
B2
Abstract

A system-in-package includes a package carrier; a first semiconductor die having a die face and a die edge, the first semiconductor die being assembled face-down to a chip side of the package carrier; a second semiconductor die mounted alongside of the first semiconductor die; a rewiring laminate structure comprising a re-routed metal layer between the first semiconductor die and the package carrier. At least a portion of the re-routed metal layer projects beyond the die edge. A plurality of bumps are arranged on the rewiring laminate structure for electrically connecting the first semiconductor die with the package carrier.

Claims (55)

1. A system-in-package, comprising:

a package carrier;

a first semiconductor die having a die face and a die edge, the first semiconductor die being assembled face-down to a chip side of the package carrier, wherein a plurality of contact pads are situated on the die face;

a second semiconductor die mounted on the package carrier and adjacent to the first semiconductor die;

a rewiring laminate structure between the first semiconductor die and the package carrier, the rewiring laminate structure comprising a re-routed metal layer, wherein at least a portion of the re-routed metal layer projects beyond the die edge; and

a plurality of bumps arranged on the rewiring laminate structure for electrically connecting the first semiconductor die with the package carrier.

2. The system-in-package according to claim 1 further comprising an underfill between the rewiring laminate structure and the package carrier.

3. The system-in-package according to claim 1 wherein the package carrier is a substrate comprising two metal wiring layers disposed on the chip side and on an opposite side of the package carrier respectively.

4. The system-in-package according to claim 3 wherein the two metal wiring layers are electrically interconnected to each other by means of plated through holes that are formed in the package carrier by mechanical drilling methods.

5. The system-in-package according to claim 1 wherein the re-routed metal layer redistributes the contact pads on the die face of the first semiconductor die to form fan-out bond pads, and the plurality of bumps are arranged on the fan-out bond pads respectively.

6. The system-in-package according to claim 1 wherein the second semiconductor die has a contact/bond pad pitch that is substantially equal to a bump pitch applied between the second semiconductor die and the package carrier.

7. The system-in-package according to claim 1 wherein the first semiconductor die has a contact/bond pad pitch smaller than that of the second semiconductor die.

8. The system-in-package according to claim 1 further comprising a mold cap encapsulating at least a portion of the first semiconductor die.

9. The system-in-package according to claim 1 further comprising a molding compound encapsulating the first semiconductor die and the second semiconductor die.

10. The system-in-package according to claim 9 wherein the molding compound fills gaps between the first semiconductor die and the package substrate and between the second semiconductor die and the package substrate.

11. The system-in-package according to claim 1 wherein the first semiconductor die is a baseband chip, an RF chip or a SoC chip.

12. The system-in-package according to claim 11 wherein the second semiconductor die is a power-management IC (PMIC), a WiFi chip, an FM chip, a GPS chip or a bluetooth chip.

13. A system-in-package, comprising:

a package carrier having a chip side and an opposite side;

a fan-out wafer level device comprising a first semiconductor die mounted on the chip side of the package carrier;

a second semiconductor die mounted on the chip side of the package carrier and adjacent to the fan-out wafer level device and

an underfill between the package carrier and the fan-out wafer level device.

14. The system-in-package according to claim 13 wherein the fan-out wafer level device comprises:

a mold cap encapsulating at least a portion of the first semiconductor die; and

a redistribution layer for fan out contact pads of the first semiconductor die.

15. The system-in-package according to claim 13 wherein the package carrier is a substrate comprising two metal wiring layers disposed on the chip side and on the opposite side of the package carrier respectively.

16. The system-in-package according to claim 13 wherein the second semiconductor die has a contact/bond pad pitch that is substantially equal to a bump pitch applied between the second semiconductor die and the package carrier.

17. The system-in-package according to claim 13 wherein the first semiconductor die is a baseband chip, an RF chip or a SoC chip.

18. The system-in-package according to claim 17 wherein the second semiconductor die is a power-management IC (PMIC), a WiFi chip, an FM chip, a GPS chip or a bluetooth chip.

19. A system-in-package, comprising:

a package carrier having a chip side and an opposite side;

a fan-out wafer level device comprising a first semiconductor die mounted on the chip side of the package carrier;

a second semiconductor die mounted on the chip side of the package carrier and adjacent to the fan-out wafer level device; and

a molding compound encapsulating the fan-out wafer level device and the molding compound filling into a gap between the package carrier and the fan-out wafer level device.

20. The system-in-package according to claim 19 wherein the fan-out wafer level device comprises:

a mold cap encapsulating at least a portion of the first semiconductor die; and

a redistribution layer for fan out contact pads of the first semiconductor die.

21. The system-in-package according to claim 19 wherein the package carrier is a substrate comprising two metal wiring layers disposed on the chip side and on an opposite side of the package carrier respectively.

22. The system-in-package according to claim 19 wherein the second semiconductor die has a contact/bond pad pitch that is substantially equal to a bump pitch applied between the second semiconductor die and the package carrier.

23. The system-in-package according to claim 19 wherein the first semiconductor die is a baseband chip, an RF chip or a SoC chip.

24. The system-in-package according to claim 19 wherein the second semiconductor die is a power-management IC (PMIC), a WiFi chip, an FM chip, a GPS chip or a bluetooth chip.

25. A system-in-package, comprising:

a package carrier having a chip side and an opposite side;

a first semiconductor die having a die face and a die edge, the first semiconductor die being assembled face-down to the chip side of the package carrier, wherein a plurality of contact pads are situated on the die face;

a second semiconductor die mounted on the chip side of the package carrier and adjacent to the first semiconductor die;

a rewiring laminate structure between the first semiconductor die and the package carrier, the rewiring laminate structure comprising a re-routed metal layer, wherein at least a portion of the re-routed metal layer projects beyond the die edge;

a plurality of bumps arranged on the rewiring laminate structure for electrically connecting the first semiconductor die with the package carrier; and

a plurality of solder balls on the opposite side of the substrate.

26. The system-in-package according to claim 25 wherein the package carrier comprises two metal wiring layers disposed on the chip side and on the opposite side respectively, and wherein the two metal wiring layers are electrically interconnected to each other by means of plated through holes that are formed by mechanical drilling methods.

27. The system-in-package according to claim 25 further comprising an underfill between the rewiring laminate structure and the package carrier.

28. The system-in-package according to claim 25 wherein the second semiconductor die has a contact/bond pad pitch that is substantially equal to a bump pitch applied between the second semiconductor die and the package carrier.

29. The system-in-package according to claim 1 wherein the first semiconductor die and the second semiconductor die share the rewiring laminate structure.

30. The system-in-package according to claim 13 wherein the first semiconductor die and the second semiconductor die share a rewiring laminate structure of the fan-out wafer level device.

31. The system-in-package according to claim 19 wherein the first semiconductor die and the second semiconductor die share a rewiring laminate structure of the fan-out wafer level device.

32. The system-in-package according to claim 25 wherein the first semiconductor die and the second semiconductor die share the rewiring laminate structure.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2025
From: MEDIATEK INC.
To: MOSAID TECHNOLOGIES, INC.
Reel/Frame 071215/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 15, 2010
From: CHEN, NAN-CHENG; HSU, CHIH-TAI
To: MEDIATEK INC.
Reel/Frame 025142/0693 →
Continuity (4)
Continuation In Part 12370537 · Feb 12, 2009
Provisional Application 61056401 · May 27, 2008
Provisional Application 61347494 · May 24, 2010
Related Publication 20110031619A1 · Feb 10, 2011