Vapor deposition apparatus
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United States of America Patent
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-
Oct 30, 2001
Grant Date -
N/A
app pub date -
Feb 17, 2000
filing date -
Feb 18, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for vapor depositing a release agent on a foil. The foil is wrapped around a cylindrical drum which is made of a porous material. The hollow inside of the drum forms a vapor space. The outer surface of the drum includes a thin metallic layer which has engraved or etched therein a pattern of surface passages. A vaporizer vessel provides a vaporized release agent which is conducted to the vapor space inside the drum. The release agent travels through the circumferential passages so as to be deposited in a pattern on the foil which is wrapped around the drum. A conforming body covers the circumferential surface not covered by the foil and can be heated to heat the drum.
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