Metallization and photolithographic processes and procedures for MC2730 RTG thermopile intraconnections
Autor: | R.E. Wright, G.L. Knauss, E.E. Komarek |
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Rok vydání: | 1974 |
Předmět: | |
DOI: | 10.2172/7192063 |
Popis: | Processes and procedures were developed for applying the thin film tungsten electrical intraconnections to the MC2730 RTG ''one-dimensional'' thermopile. After polishing, the surface to be metallized was cleaned with a detergent/organic solvent procedure and then etched with hydrofluoric acid to minimize the oxide. Tungsten contacts were sputtered onto the thermopile and the individual contacts photolithographically defined using a negative acting photoresist in conjunction with a potassium ferricyanide etchant. The processes were used to process 89 thermopiles with an 80 percent effective yield. |
Databáze: | OpenAIRE |
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