Semi conductor has structure suppresses a rise in the transmission resistance

摘要

The semiconductor has a. N+ diffuser region (6a-6d)on a substrate (1) Of p-silicon with an N- epitaxial layer (2). Gate electrodes are formed (8a-8b) with a gate insulator in between. Further layers form a source electrode (9) and a drain electrode (10). Under a field isolating film (14) is a P-Diffusion layer (7).