Performance Analysis of Trench Power MOSFETs in High-Frequency Synchronous Buck Converter Applications
Figure 11
Various
trench power MOSFET structures: (a) Type B: thick-bottom-oxide design;
(b) Type C: ultranarrow trench design; (c) Type E: floating-polyplug
design; (d) Type E: high-cell density design; (e) Type F: low-cell
density design.