A first portion of the second layer (2) is transformed into a buried isolationregion (15) comprising a first electrically insulating material.
将第二层(2)的第一部分转换为包括第一电绝缘材料的埋入绝缘区域(15)。
2
The semiconductor device includes a semiconductor substrate having an active region and a device isolationregion defining the active region, and a resistor string formed over the active region.
One conservationist who recently went looking for a rare poisonous bird in an unexplored region had to take along a local shaman as a guide, a measure of Papua New Guinea's splendid isolation.