David C. Thomas
IBM
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Publication
Featured researches published by David C. Thomas.
Applied Physics Letters | 1985
M. Heiblum; David C. Thomas; C. M. Knoedler; Marshall I. Nathan
Tunneling hot‐electron transfer amplifier (THETA) devices, based on GaAs‐AlGaAs heterojunctions, were fabricated and tested. Hot‐electron transfer (α) through a 1100‐A base in excess of 70% was found at 4.2 K. This resulted in a corresponding current gain ( β) in a common emitter configuration of about 2.3. In the temperature range of 4.2–80 K and under constant biasing conditions, α was nearly temperature independent. Electron energy distributions for motion normal to the layers and electron total energy loss while traversing the device were estimated. Typical widths of the energy distributions were less than 200 meV, and both widths and energy peak positions were only slightly dependent on temperature and initial injection energy.
advanced semiconductor manufacturing conference | 2013
Shawn A. Adderly; Jeffrey P. Gambino; Timothy D. Sullivan; Matthew D. Moon; Anthony C. Speranza; Nathaniel W. Bowe; David C. Thomas
Extrusions are a well-known phenomenon in Al interconnect stacks. We review experimental approaches to mitigate extrusions including depositing a low temperature oxide (LTO) on the film stack, modulation of the metal anneal conditions, and moving the anneal step from post-metal etch to post-metal deposition. After evaluation of the three potential solutions we determined that the movement of the anneal step from post-metal etch to post-metal deposition is the most manufacturable process.
Physical Review Letters | 1985
M. Heiblum; M. I. Nathan; David C. Thomas; C. M. Knoedler
Archive | 1996
Christine Ann Anderson; Edward Daniel Buker; John Edward Cronin; Gloria Jean Kerszykowski; David C. Thomas
Archive | 1994
Richard A. Gilmour; Thomas J. Hartswick; David C. Thomas; Ronald R. Uttecht; Erick G. Walton
Archive | 1995
Richard A. Gilmour; Thomas J. Hartswick; David C. Thomas; Ronald R. Uttecht; Erick G. Walton
Archive | 1999
Thomas F. Curran; Timothy C. Krywanczyk; Michael S. Lube; Matthew D. Moon; Rock Nadeau; Clark D. Reynolds; Dean Allen Schaffer; Joel M. Sharrow; Paul H. Smith; David C. Thomas; Eric J. White; Kenneth H. Yao
Archive | 1996
Richard A. Gilmour; Thomas J. Hartswick; David C. Thomas; Ronald R. Uttecht; Erick G. Walton
Archive | 2003
Edward C. Cooney; Robert M. Geffken; Vincent J. McGahay; William T. Motsiff; Mark P. Murray; Amanda L. Piper; Anthony K. Stamper; David C. Thomas; Elizabeth T. Webster
Archive | 2003
Edward C. Cooney; Robert M. Geffken; Vincent J. McGahay; William T. Motsiff; Mark P. Murray; Amanda L. Piper; Anthony K. Stamper; David C. Thomas; Christy S. Tyberg; Elizabeth T. Webster