Polymer protected component

Details Polymer protected component Polymer protected component

1998-06-04

1999-12-07

Yao, Sam Chuan

Cleaning and liquid contact with solids

Apparatus

With movable means to cause fluid motion

134902, 156494, B08B 312

Patent

active

059966017

ABSTRACT:
The present invention is a method and apparatus for mechanically bonding a polymer to a convex surface of a substrate to provide intimate contact therebetween for improved energy transport between a transducer on one side of the substrate and a chemical bath on the other. The polymer seals the surface of the substrate from the chemical bath and may have a low adhesion to the substrate. A thin film of the polymer is brought under a tensile stress to provide intimate physical contact with most of the area of the convex surface. In one embodiment, the tensile stress is achieved by providing polymer as a liquid on the convex surface and then cooling to take advantage of differential thermal contraction between the polymer and the substrate to achieve the tensile stress in the polymer.

REFERENCES:
patent: 5383484 (1995-01-01), Thomas et al.
patent: 5888331 (1999-03-01), Greig

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