Research Article

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.
412175.fig.011a
(a) Thick bottom oxide
412175.fig.011b
(b) Ultranarrow trench
412175.fig.011c
(c) Floating poly plug
412175.fig.011d
(d) High-cell desity
412175.fig.011e
(e) Low-cell desity