Electrostatic chuck plate
First Claim
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1. An electrostatic chuck plate for holding a sample with an electrostatic force, comprising:
- an electrode made of electrically conductive material and having a flat surface; and
a dielectric layer formed on the flat surface of the electrode by flame-spraying dielectric material, said dielectric layer having a flat surface to be electrically charged to electrostatically attract a sample;
wherein at least said flat surface of said dielectric layer is impregnated with plastic material.
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Abstract
An electrostatic chuck plate comprises an electrode plate made of electrically conductive material and a dielectric layer formed on one surface of the electrode plate by flame-spraying dielectric material. The surface region of the dielectric layer is impregnated with plastic material, and the surface of the dielectric layer is smooth and flat. A sample is electrostatically attracted toward the electrode plate and is thus held on the smooth and flat surface of the dielectric layer.
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Citations
4 Claims
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1. An electrostatic chuck plate for holding a sample with an electrostatic force, comprising:
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an electrode made of electrically conductive material and having a flat surface; and a dielectric layer formed on the flat surface of the electrode by flame-spraying dielectric material, said dielectric layer having a flat surface to be electrically charged to electrostatically attract a sample; wherein at least said flat surface of said dielectric layer is impregnated with plastic material. - View Dependent Claims (2, 3, 4)
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Specification