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What are the functions of oxide layer in high quality IC? Explain.
Silicon has the unique ability to be oxidized into silica, which makes a chemically stable, protective and insulating layer on the surface of water.
The functions of the oxide layer are
(i) To mask against diffusion or ion-implant,
(ii) To passivate the surface electrically and chemically.
(iii) To isolate single device from another, and
(iv) To act as a component in MOS devices.
Contact Printing In contact printing, the resist-coated silicon wafer is bring into physical contact with the glass photo mask. The wafer is held on a vacuum chuck, and the ent
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The property of a material by which it can be drawn into wires is called as Ductility is the only property of a material by which it can be drawn into wires.
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