Stock material or miscellaneous articles – Surface property or characteristic of web – sheet or block
Patent
1978-07-31
1980-07-01
Ansher, Harold
Stock material or miscellaneous articles
Surface property or characteristic of web, sheet or block
204192N, 204298, 351166, 427 40, 428411, 428911, C23C 1312, B05D 306, B32B 3128
Patent
active
042107016
ABSTRACT:
Method and apparatus for using emitting, ionizing, accelerating and collecting elements in a high vacuum to implant a hard film on a plastic substrate or the like. In preparation, a slug of a selected material to be deposited as a film is placed in the emitter. The specimens or articles to be implanted are placed on supports in the vicinity of the collector. A cover enclosure is then placed in position and the region enclosed by the cover is exhausted to a high vacuum. Selected potentials are applied to various elements of the apparatus and an accelerating/directing field which may be developed electrostatically, magnetically or by a combination of both, is developed in the acceleration structure. The electrostatic field causes electron emission from the ionizing elements to develop an increased charge on the emitted ionized particles. When implantation is to begin, a shutter control is moved out of beam blocking position and ionized particles from the emitter pick up additional charge from the ionizing elements and are accelerated to high velocity for bombarding the specimens. The collector is provided near the end of the enclosure beyond the specimen support region. The specimens are discharged regularly to eliminate the build-up of surface charge from the stream of bombarding ions.
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Berg Joseph E.
Brown, Jr. Randolph E.
Ansher Harold
Bissell Henry M.
Precision Thin Film Corporation
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