A ( ) is a small volume of the crystal that can be used to reproduce the entire crystal and it is not a unique entity.
A. primitive cell
B. unit cell
C. basic cell
D. origin cell
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The full name of PVD is ______ .
The earliest method of growing semiconductor materials is called ().
A. Czochralski method
B. Epitaxial growth method
C. Spin-coating method
D. Magnetron sputtering method
Which of the following methods are the main growth methods of semiconductors materials().
A. Epitaxial Growth
B. PVD,CVD
C. PLD、ALD
D. Sol-gel、Spin-coating、Roll-to-roll
( ) are the types of bulk defects.
A. Wraps
B. Voids
C. Precipitated phase
D. Cracks
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