Recent research results both at home and abroad showed that bi-film formed after fold-over of re-oxidized metal film may be the important reason for these defects,such as precipitating gas holes,shrinkages,shrinkage porosities and s.

The oxide-confined str uc ture is often used to confine current and optical field in vertical cavity surfa ce emitting lasers(VCSEL).

Effect of control oxide on the performance of nanocrystalline silicon based double-barrier floating gate memory structure;