Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1978-03-02
1981-03-31
Smith, Ronald H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
23302T, 156622, 156624, 427 451, 427 64, 427 72, 427 93, 427100, 427241, 427292, 427319, 4273741, 4273744, 4273981, 427405, 427427, 427431, 427436, 428910, 428913, B05D 302
Patent
active
042593654
ABSTRACT:
Sodium nitrite in liquid form is deposited on a substrate and allowed to crystallize thereby forming a thin layer on the substrate. The substrate is either dipped into a solution containing sodium nitrite or into sodium nitrite in the molten state and then pulled out again. Subsequent drying or cooling of the wetted substrate top surface causes the crystalline film to form. Alternatively, sodium nitrite in a liquid state is applied to the top surface of the substrate and the substrate is rotated to assure an even distribution of the sodium nitrite. Again, drying or cooling causes the crystalline layer to form. The so manufactured unit is shown as part of a pyroelectric radiation detector, as image receiver in a television camera tube and as the storage element in a field effect transistor arrangement.
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Hetzler Ullrich
Ruppel Wolfgang
Vogt Horst
Wurfel Peter
Page Thurman K.
Rich Marianne
Smith Ronald H.
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