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Discuss about the term - Photolithography
Photolithography (also known as optical lithography), which is one of the kinds of lithography is a process used in micro fabrication to selectively remove parts of a thin film (or bulk of a substrate). It uses light to transfer a geometric pattern from a photo mask to a light-sensitive chemical (photo resist, or simply "resist") on the substrate. A series of chemical treatments then engraves exposure pattern into material underneath the photo resist. In a complex integrated circuit (for instance, modern CMOS), a wafer would go through photolithographic cycle up to 50 times.
Why alcoholic acidity express in terms of sulphuric acid
Phosphate of a metal M has the formula M 3 (PO 4 ) 2 The formula for its sulphate would be: (1) MSO 4 (2) M (SO 4
what are the reactions involved using pottasium dichromate method?
Q. Describe Sulphurous Acid ? Sulphurous acid H 2 SO 3 is known only in solution. It exists mainly as a hydrate of sulphur dioxide SO 2 . 7H 2 O two series of salts the bisulp
Electrovalent compounds are: (1) Good conductor of electricity (2) Polar in nature (3) Low M.P. and low B.P. (4) Easily available Ans: Polar in nature
describe the construction and the working of the calomel electrode
how to name the following compound and how to assign oxdiation state aof central metal ion : positive complex ion containing two cobalt metal atoms which are held by the bridges hy
what is the method to doing potentiometric titration
The nucleus of the element 21E^45 contains
chemistry of f block elements
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