Method and apparatus for detecting sputtering target depletion

Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

204298, C23C 1500

Patent

active

045458820

ABSTRACT:
In the operation of sputtering targets, whether the targets are planar or cylindrical, magnetically enhanced or not, they are provided with a detectable material underlying the coating material carried on the target. As the target becomes depleted, the underlying material becomes deposited on the substrate and is then detected when appearing on the substrate. The detectable material can be a radioactive substance, an electrical characteristic detectable substance such as iron, an optically detectable substance such as copper or gold which is highly reflective, or a fluorescent substance. The target may have a thinner section of coating material immediately above the detectable material or the detectable material may be deeply imbedded in the target where the target is a solid substance and is water cooled from the opposed surface.

REFERENCES:
patent: 4166783 (1979-09-01), Turner
patent: 4311725 (1982-01-01), Holland
patent: 4341816 (1982-07-01), Lauterbach et al.
patent: 4374722 (1983-02-01), Zega
patent: 4407708 (1983-10-01), Landau

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for detecting sputtering target depletion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting sputtering target depletion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting sputtering target depletion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2218351

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.