Process and apparatus for abrasive machining of a wafer-like wor

Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool

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51118, 511311, B24B 722

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active

047395893

ABSTRACT:
A process is provided for bilateral abrasive machining of wafer-like workpieces, especially semiconductor wafers. The process uses carrier disks in which the outer periphery on which the driving forces mesh, is made of a material having a tensile strength of at least 100 N/mm.sup.2, while in the area that comes into contact with the workpieces to be machined, there is provided a plastic material having an elasticity modulus of from 1.0 to 8.10.sup.4 N/mm.sup.2.

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patent: 4319432 (1982-03-01), Day
patent: 4512113 (1985-04-01), Budinger
IBM Technical Disclosure Bulletin, vol. 15, No. 6, Nov. 1972, Planetary "Free" Wafer Polisher, F. Goetz et al, pp. 1760-1761, 51/118.
Patent Abstracts of Japan, Band 6, Nr. 109 (M-137) [987] Jun. 19, 1982.
Patent Abstracts of Japan, Band 6, Nr. 240 (M-174) [1118] Nov. 27, 1982.
Western Electric, Technical Digest, Nr. 26, Apr. 1977, pp. 11,12, Western ElectricNew York, U.S.; J. T. Callahan et al., "Infrared Heat Wax Method of Mounting Crystal Plates . . . ".
Patents Abstracts of Japan, p. 179 M 76, (Citizen Watch K. K.).

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