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Pre-Anneal Cleaning Process Disclosure Number: IPCOM000066852D
Original Publication Date: 1979-May-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue


Related People

Ciotoli, RA Cistola, AB Hoffman, HS [+details]


Under certain circumstances, it is necessary, or desirable, to anneal printed circuitry which has exposed copper lines. It has been found that if exposed copper is annealed in an inert atmosphere, any oxidation on the copper surface migrates deeper into the copper and is harder to remove after annealing than before annealing.