Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1977-08-12
1978-08-15
Esposito, Michael F.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
29 2535, 53 7, 427 9, 427 10, 427 41, 427 44, 427 53, 427 54, 427 10D, B05D 306, D05D 512
Patent
active
041073495
ABSTRACT:
The resonant frequencies of a piezoelectric resonator are adjusted either before sealing the resonator into an enclosure or after sealing the resonator into an enclosure or both before and after sealing the resonator into an enclosure. The method makes use of radiation to polymerize a polymerizable gas that has been introduced into the enclosure that houses the resonator. The resulting polymer that deposits on the resonator adjusts the resonant frequencies of the resonator from undesired frequencies to desired frequencies.
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patent: 3981687 (1976-09-01), Vig
Fischer et al., "Direct Plating to Frequency-a Powerful Fabrication Method or Crystals with Closely Controlled Parameters," Proceedings of the 30th Annual Symposium on Frequency Control, Germany, pp. 209-213, (1976).
Edelberg Nathan
Esposito Michael F.
Gordon Roy E.
Kanars Sheldon
Page Thurman K.
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