Abrading – Abrading process – Glass or stone abrading
Patent
1994-03-16
1997-04-22
Meislin, D. S.
Abrading
Abrading process
Glass or stone abrading
451 28, 451 36, B24B 100
Patent
active
056225253
ABSTRACT:
Method of polishing a surface (5a) of copper or an alloy comprising mainly copper, in which a polishing means is moved across the surface while exerting a polishing pressure of approximately 500 g/cm.sup.2 for obtaining a plane and smooth polished surface without any defects. A composition of a polishing component comprising a colloidal suspension of SiO.sub.2 particles having an average particle size of between 20 and 50 nm in an alkali solution, demineralized water and a chemical activator is used as a polishing means.
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De Boer Dirk K. G.
De Haas Peter W.
Haisma Jan
Postma Lambertus
Van den Hoogenhof Waltherus W.
Fox John C.
Meislin D. S.
Morgan Eileen P.
U.S. Philips Corporation
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