Method of coating substrates with an abrasive layer

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board

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427 39, 4272553, 427295, 427296, 427337, B05D 306

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active

043394710

ABSTRACT:
A method for preparing an abrasive SiO.sub.x coating, wherein 1.ltoreq..times..ltoreq.2, on a substrate by glow discharge deposition wherein the deposition on the substrate in a vacuum chamber is interrupted before the desired final SiO.sub.x coating thickness is obtained. SiH.sub.4 and N.sub.2 O are subjected to a glow discharge and SiO.sub.x is deposited onto the substrate. The deposition is interrupted, SiH.sub.4 is removed from the vacuum chamber and the SiO.sub.x coating is exposed to oxygen. These steps are repeated until the desired final SiO.sub.x coating thickness is obtained.

REFERENCES:
patent: 4104832 (1978-08-01), Keizer
patent: 4243395 (1981-01-01), Dholakia
patent: 4260647 (1981-04-01), Wang et al.
Joyce et al., "Silicon Oxide and Nitride Films Deposited by an R. F. Glow-Discharge", Thin Solid Films, vol. 1, pp. 481-494, (1967-1968).

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