標題: The impact of high-voltage drift n-well and shallow trench isolation layouts on electrical characteristics of LDMOSFETs
作者: Huang, C. T.
Tsui, Bing-Yue
Liu, Hsu-Ju
Lin, Geeng-Lih
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2007
摘要: The impact of the high-voltage drift n-well (HVNW) and shallow trench isolation (STI) regions on the electrical characteristics of 32V symmetry and asymmetry n-channel laterally diffused drain MOSFET (N-LDMOS) were evaluated. Asymmetry structure has higher threshold voltage owing to the transient enhancement diffusion (TED) of boron near source region. The smaller extension of the HVNW to STI (E(HVNW-STI) for asymmetry structure exhibits a wider safe-operating-area (SOA) from the hot-carrier reliability point of view. To obtain a higher on-current, the EHVNW-STI should be optimized because the steep sidewall of the STI may force current to flow through a longer distance in the HVNW. Finally, increase of EHVNW-STI cannot efficiently increase breakdown voltage.
URI: http://hdl.handle.net/11536/6013
ISBN: 978-1-4244-0636-4
期刊: EDSSC: 2007 IEEE INTERNATIONAL CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS, VOLS 1 AND 2, PROCEEDINGS
起始頁: 267
結束頁: 270
Appears in Collections:Conferences Paper