Trench Gate Power MOSFET: Recent Advances and Innovations
  The trench gate MOSFET has established itself as the most suitable power device for low to medium power applications by offering the lowest possible ON resistance among all MOS devices. The evolution of the trench gate power MOSFET has been discussed in this chapter, starting right from its beginnings to the recent trends. The innovations in the structural improvements to meet the requirements for an efficient operation, the progress in the fabrication technology, the characterization methods and various reliability issues have been emphasized. 
Raghavendra Sahai Saxena and M. Jagadesh Kumar
cond-mat.mtrl-sci cond-mat.mes-hall physics.ins-det