A
A. Upham
Researcher at IBM
Publications - 12
Citations - 608
A. Upham is an academic researcher from IBM. The author has contributed to research in topics: Die preparation & Wafer. The author has an hindex of 9, co-authored 12 publications receiving 578 citations.
Papers
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Proceedings ArticleDOI
Extremely thin SOI (ETSOI) CMOS with record low variability for low power system-on-chip applications
Kangguo Cheng,Ali Khakifirooz,Pranita Kulkarni,Shom Ponoth,J. Kuss,Davood Shahrjerdi,Lisa F. Edge,A. Kimball,S. Kanakasabapathy,K. Xiu,Stefan Schmitz,Alexander Reznicek,Thomas N. Adam,H. He,Nicolas Loubet,S. Holmes,Sanjay Mehta,D. Yang,A. Upham,Soon-Cheon Seo,J. L. Herman,R. Johnson,Yu Zhu,Paul C. Jamison,Bala S. Haran,Z. Zhu,L. H. Vanamurth,Su Chen Fan,D. Horak,Huiming Bu,Philip J. Oldiges,Devendra K. Sadana,P. Kozlowski,D. McHerron,James A. O’Neill,Bruce B. Doris +35 more
TL;DR: In this paper, the authors present a new ETSOI CMOS integration scheme that incorporates all benefits from their previous unipolar work, and demonstrate NFET and PFET drive currents of 640 and 490 µA/µm, respectively, at I off = 300 pA/m, V DD = 0.9V, and L G = 25nm.
Proceedings ArticleDOI
High performance extremely thin SOI (ETSOI) hybrid CMOS with Si channel NFET and strained SiGe channel PFET
Kangguo Cheng,Ali Khakifirooz,Nicolas Loubet,Scott Luning,Toshiharu Nagumo,Maud Vinet,Qing Liu,Alexander Reznicek,Thomas N. Adam,Sebastian Naczas,Pouya Hashemi,J. Kuss,James Chingwei Li,H. He,Lisa F. Edge,J. Gimbert,Prasanna Khare,Yu Zhu,Z. Zhu,Anita Madan,N. Klymko,S. Holmes,T. Levin,Alex Hubbard,R. Johnson,M. Terrizzi,Sean Teehan,A. Upham,G. Pfeiffer,T. Wu,A. Inada,Frederic Allibert,Bich-Yen Nguyen,L. Grenouillet,Y. Le Tiec,Romain Wacquez,Walter Kleemeier,R. Sampson,Robert H. Dennard,Tak H. Ning,Mukesh Khare,Ghavam G. Shahidi,Bruce B. Doris +42 more
TL;DR: A novel “STI-last” integration scheme is developed to improve cSiGe uniformity and enable ultra high performance PFET with narrow widths and modulates device Vt, thus providing an additional knob to enable multi-Vt while maintaining undoped channels for all devices.
Proceedings ArticleDOI
UTBB FDSOI transistors with dual STI for a multi-V t strategy at 20nm node and below
L. Grenouillet,M. Vinet,J. Gimbert,Bastien Giraud,Jean-Philippe Noel,Qing Liu,Prasanna Khare,Marie-Anne Jaud,Y. Le Tiec,Romain Wacquez,T. Levin,P. Rivallin,S. Holmes,Sen Liu,Kangguo Chen,O. Rozeau,P. Scheiblin,Erin Mclellan,M. Malley,J. Guilford,A. Upham,R. Johnson,M. Hargrove,T. Hook,Stefan Schmitz,Sanjay Mehta,J. Kuss,Nicolas Loubet,Sean Teehan,M. Terrizzi,Shom Ponoth,Kangguo Cheng,T. Nagumo,Ali Khakifirooz,Frederic Monsieur,Pranita Kulkarni,R. Conte,James J. Demarest,O. Faynot,Walter Kleemeier,Scott Luning,Bruce B. Doris +41 more
TL;DR: It is demonstrated in 20nm ground rules that Vt is able to tune by more than 400mV, that transistor performance can be boosted by up to 30% and that Ioff can be controlled over 3 decades by allowing more than VDD/2 to be applied on the back gate.
Proceedings ArticleDOI
Ultra-thin-body and BOX (UTBB) fully depleted (FD) device integration for 22nm node and beyond
Qing Liu,Atsushi Yagishita,Nicolas Loubet,Ali Khakifirooz,Pranita Kulkarni,T. Yamamoto,Kangguo Cheng,M. Fujiwara,Jin Cai,D. Dorman,Swati Mehta,Prasanna Khare,K. Yako,Yu Zhu,S. M. Mignot,S. Kanakasabapathy,Stephane Monfray,Frederic Boeuf,Charles W. Koburger,Hiroshi Sunamura,Shom Ponoth,Alexander Reznicek,Balasubramanian S. Pranatharthi Haran,A. Upham,R. Johnson,Lisa F. Edge,J. Kuss,T. Levin,N. Berliner,Effendi Leobandung,Thomas Skotnicki,Masami Hane,Huiming Bu,Kazunari Ishimaru,Walter Kleemeier,Mariko Takayanagi,Bruce B. Doris,R. Sampson +37 more
TL;DR: In this paper, a gate length of 25nm and competitive drive currents of 1.27 mV·µm were achieved by using a gate-first high-k/metal and raised source/drains (RSD).
Proceedings Article
Fully depleted extremely thin SOI technology fabricated by a novel integration scheme featuring implant-free, zero-silicon-loss, and faceted raised source/drain
Kangguo Cheng,Ali Khakifirooz,Pranita Kulkarni,S. Kanakasabapathy,Stefan Schmitz,Alexander Reznicek,Thomas N. Adam,Yu Zhu,James Chingwei Li,Johnathan E. Faltermeier,Toshiharu Furukawa,Lisa F. Edge,Bala S. Haran,Soon-Cheon Seo,Paul C. Jamison,Judson R. Holt,Xin Li,Rainer Loesing,Z. Zhu,R. Johnson,A. Upham,T. Levin,M. Smalley,J. L. Herman,M. Di,Junli Wang,Devendra K. Sadana,P. Kozlowski,Huiming Bu,Bruce B. Doris,James A. O’Neill +30 more
TL;DR: In this article, a zero-silicon loss process is developed to eliminate loss of thin SOI layer during gate and spacer processes, enabling structural demonstration of sub-2 nm ETSOI.