IP Library Granted Patent US 6,927,593
Granted Patent B2
US 6,927,593 · App. 10/860,679 · Granted Aug 9, 2005

System for testing semiconductor die on multiple semiconductor wafers

Assignee: Eaglestone Partners I, LLC
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,927,593
App. No.
10/860,679
Granted
Aug 9, 2005
Kind
B2
Abstract

A system for testing semiconductor die on multiple semiconductor wafers includes a testing unit ( 82 ), a test fixture bank ( 84 ) operably coupled to the testing unit ( 82 ), a plurality of test fixture racks ( 86-92 ) operably coupled to the test fixture bank ( 84 ) and a plurality of wafer-interposer assemblies ( 94-140 ) operably coupled to each of the test fixture racks ( 86-92 ). Each of the wafer-interposer assemblies ( 94-140 ) includes a semiconductor wafer having a plurality of semiconductor die and an interposer coupled to the semiconductor wafer. The interposer has a first set of conductors for electrically connecting the semiconductor die of the semiconductor wafer to a substrate and a second set of conductors that electrically connect the semiconductor die of the semiconductor wafer to the test fixture rack ( 86-92 ) via a connector, thereby providing for addressing and testing of the semiconductor die.

Claims (38)

1. A system for testing semiconductor die on multiple semiconductor wafers comprising:

a test fixture rack having connectors; and

at least two wafer-interposer assemblies, the wafer-interposer assemblies each including a semiconductor wafer having a plurality of semiconductor die and an interposer coupled to the semiconductor wafer, the interposer having a first set of conductors for electrically connecting the semiconductor die of the semiconductor wafer to a substrate and a second set of conductors that electrically connect the semiconductor die of the semiconductor wafer to the test fixture rack via one of the connectors, thereby providing for addressing and testing of the semiconductor die.

2. The system as recited in claim 1 wherein the test fixture rack further comprises discrete devices for enhancing testing of the semiconductor die.

3. The system as recited in claim 1 wherein the test fixture rack further comprises display devices that indicate a parameter associated with testing of the semiconductor die.

4. The system as recited in claim 1 wherein the test fixture rack further comprises a handle.

5. The system as recited in claim 1 further comprising at least one positioning guide attached to the test fixture rack.

6. The system as recited in claim 1 wherein the test fixture rack is operably couplable to a testing unit that performs parametric testing of at least a portion of the semiconductor die.

7. The system as recited in claim 1 wherein the test fixture rack is operably couplable to a testing unit that performs sequential testing of at least a portion of the semiconductor die.

8. The system as recited in claim 1 wherein the test fixture rack is operably couplable to a testing unit that performs simultaneous testing of at least a portion of the semiconductor die.

9. The system as recited in claim 1 wherein the test fixture rack is operably couplable to a testing unit that performs vibrational and mechanical stress testing on at least a portion of the semiconductor die.

10. The system as recited in claim 1 wherein the test fixture rack is operably couplable to a test fixture bank.

11. The system as recited in claim 10 wherein test fixture bank is operably couplable to a testing unit.

12. A system for testing semiconductor die on multiple semiconductor wafers comprising:

a test fixture bank;

at least two test fixture racks operably coupled to the test fixture bank, each of the test fixture racks having connectors; and

at least two wafer-interposer assemblies operably coupled to each of the test fixture racks, the wafer-interposer assemblies each including a semiconductor wafer having a plurality of semiconductor die and an interposer coupled to the semiconductor wafer, the interposer having a first set of conductors for electrically connecting the semiconductor die of the semiconductor wafer to a substrate and a second set of conductors that electrically connect the semiconductor die of the semiconductor wafer to the test fixture rack via one of the connectors, thereby providing for addressing and testing of the semiconductor die.

13. The system as recited in claim 12 wherein each of the test fixture racks further comprises discrete devices for enhancing testing of the semiconductor die.

14. The system as recited in claim 12 wherein each of the test fixture racks further comprises display devices that indicate a parameter associated with testing of the semiconductor die.

15. The system as recited in claim 12 wherein each of the test fixture racks further comprises a handle.

16. The system as recited in claim 12 further comprising at least one positioning guide attached to each of the test fixture racks for aligning the test fixture racks with the test fixture bank.

17. The system as recited in claim 12 wherein the test fixture bank is operably couplable to a testing unit that performs parametric testing of at least a portion of the semiconductor die.

18. The system as recited in claim 12 wherein the test fixture bank is operably couplable to a testing unit that performs sequential testing of at least a portion of the semiconductor die.

19. The system as recited in claim 12 wherein the test fixture bank is operably couplable to a testing unit that performs simultaneous testing of at least a portion of the semiconductor die.

20. The system as recited in claim 12 wherein the test fixture bank is operably couplable to a testing unit that performs vibrational and mechanical stress testing on at least a portion of the semiconductor die.

21. A system for testing semiconductor die on multiple semiconductor wafers comprising:

a testing unit;

a test fixture bank operably coupled to the testing unit;

at least two test fixture racks operably coupled to the test fixture bank, each of the test fixture racks having connectors; and

at least two wafer-interposer assemblies operably coupled to each of the test fixture racks, the wafer-interposer assemblies each including a semiconductor wafer having a plurality of semiconductor die and an interposer coupled to the semiconductor wafer, the interposer having a first set of conductors for electrically connecting the semiconductor die of the semiconductor wafer to a substrate and a second set of conductors that electrically connect the semiconductor die of the semiconductor wafer to the test fixture rack via one of the connectors, thereby providing for addressing and testing of the semiconductor die.

22. The system as recited in claim 21 wherein each of the test fixture racks further comprises discrete devices for enhancing testing of the semiconductor die.

23. The system as recited in claim 21 wherein each of the test fixture racks further comprises display devices that indicate a parameter associated with testing of the semiconductor die.

24. The system as recited in claim 21 wherein each of the test fixture racks further comprises a handle.

25. The system as recited in claim 21 further comprising at least one positioning guide attached to each of the test fixture racks for aligning the test fixture racks with the test fixture bank.

26. The system as recited in claim 21 wherein the testing unit performs parametric testing of at least a portion of the semiconductor die.

27. The system as recited in claim 21 wherein the testing unit performs sequential testing of at least a portion of the semiconductor die.

28. The system as recited in claim 21 wherein the testing unit performs simultaneous testing of at least a portion of the semiconductor die.

29. The system as recited in claim 21 wherein the testing unit performs vibrational and mechanical stress testing on at least a portion of the semiconductor die.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 28, 2008
From: EAGLESTONE INVESTMENT PARTNERS I, L.P.
To: TRANSPACIFIC MULTICAST, LLC
Reel/Frame 021450/0271 →
SECURITY AGREEMENT Recorded Nov 30, 2005
From: MICRO-ASI, INC.
To: EAGLESTONE INVESTMENT PARTNERS I, L.P.
Reel/Frame 016835/0032 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 13, 2005
From: KLINE, MR. JERRY D.
To: MICRO-ASI, INC.
Reel/Frame 016132/0779 →
Continuity (2)
Division 0962932600 · Jul 31, 2000
Related Publication 20040217772A1 · Nov 4, 2004