PLANAR SUBSTRATE DEVICES INTEGRATED WITH FINFETS AND METHOD OF MANUFACTURE

摘要

A planar substrate device (100) integrated with fin field effect transistors (FinFETs) and a method of manufâcture comprises a silicon-on-insulator (SOI) wafer (101) comprising a substrate (103); a buried insulator layer (105) over the substrate (103); and a semiconductor layer (115) over the buried insulator layer (105). The structure (100) further comprises a FinFET (130) over the buried insulator layer (105) and a field effect transistor (FET) (131) integrated in the substrate (103), wherein the FET (127) gate is planar to the FinFET gate (125). The structure (100) further comprises retrograde well regions (104, 106, 108, 110) configured in the substrate (103). In one embodiment, the structure (100) further comprises a shallow trench isolation region (111) configured in the substrate (103).