Universal wafer carrier for wafer level die burn-in

Details Universal wafer carrier for wafer level die burn-in Universal wafer carrier for wafer level die burn-in

2008-04-22

2008-04-22

Karlsen, Ernest (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S765010

Reexamination Certificate

active

07362113

ABSTRACT:
A reusable burn-in/test fixture for testing unsingulated dice on a semiconductor wafer consists of two halves. The first half of the test fixture is a wafer cavity plate for receiving the wafer, and the second half establishes electrical communication between the wafer and electrical testing equipment. A rigid substrate has conductors thereon which establish electrical contact with the wafer. The test fixture need not be opened until the burn-in and electrical testing are completed. After burn-in stress and electrical testing, it is possible to establish interconnection between the single die or separate and package dice into discrete parts, arrays or clusters, either as singulated parts or as arrays.

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