R
Richard K. Williams
Researcher at TMEIC Corporation
Publications - 45
Citations - 1890
Richard K. Williams is an academic researcher from TMEIC Corporation. The author has contributed to research in topics: Transistor & CMOS. The author has an hindex of 22, co-authored 45 publications receiving 1774 citations. Previous affiliations of Richard K. Williams include Science Museum, London.
Papers
More filters
Patent
Complementary, isolated DMOS IC technology
TL;DR: A process sequence that produces a plurality of pretransistor structures from which a variety of high voltage, isolated integrated circuits and low voltage integrated circuits are easily fabricated is described in this paper.
Journal ArticleDOI
The Trench Power MOSFET: Part I—History, Technology, and Prospects
Richard K. Williams,Mohamed N. Darwish,Richard A. Blanchard,Ralf Siemieniec,Phil Rutter,Yusuke Kawaguchi +5 more
TL;DR: In this paper, the historical and technological development of the ubiquitous trench power MOSFET (or vertical trench VDMOS) is described, and the recent adaptation of trench gates in wide bandgap unipolar devices is also described.
Patent
Low resistance power MOSFET or other device containing silicon-germanium layer
TL;DR: In this paper, the concentration of germanium in the Si-Ge layer can be uniform, stepped or graded to achieve desired characteristics, which can be used in vertical DMOS and trench-gated MOSFETs.
Patent
High density trenched DMOS transistor
TL;DR: In this paper, the cell density of a trenched DMOS transistor is increased by overcoming the problem of lateral diffusion of deep P+ body regions, which is solved by forming the deep body region using a high energy implant into a single epitaxial layer.
Patent
Lightly-doped drain MOSFET with improved breakdown characteristics
TL;DR: In this article, a high voltage integrated circuit (IC) has a passivation structure that shields the underlying circuit from the electrical effects of charge on the passivated structure, which is called the passivation block.