Etching rate can be improved by_____

1.	Etching rate can be improved by_____
A.	lowering the temperature
B.	using less active oxidant and highly active etchant
C.	increasing the number of electronic holes
D.	reducing the surface area of the pores so that less time will be required for the etching
Answer» D. reducing the surface area of the pores so that less time will be required for the etching

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Etching rate can be improved by_____

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