Measuring and testing – With fluid pressure – Leakage
Patent
1988-12-27
1989-11-07
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
G01M 326
Patent
active
048783765
ABSTRACT:
A test fixture for sputter targets used in the manufacture of semiconductor devices and a method of testing sputter targets. The test fixture comprises a specially shaped piece of material which is adapted to receive a sputter target. The test fixture generally conforms to the shape of the sputter target. The interface between the test fixture and the sputter target is carefully manufactured so as to maintain an airtight seal. A passageway is disposed within one sidewall of the test fixture. A vacuum tubing is disposed within the passageway and valve is connected to the tubing so that the cavity within the test fixture can be evacuated. The size of the cavity is kept small so that it may be quickly evacuated. The present invention provides an efficient and cost effective method of testing sputter targets prior to their being placed in the sputter machine.
REFERENCES:
patent: 1371484 (1921-03-01), Howard
patent: 2403897 (1946-07-01), Aller
patent: 2512134 (1950-06-01), Baule
patent: 3524342 (1970-08-01), Hobbs
patent: 4491509 (1985-01-01), Krause
patent: 4698999 (1987-10-01), Trick et al.
Kordel Jan
Leonov Mark
Intel Corporation
Williams Hezron E.
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