W
W. Graham
Researcher at IBM
Publications - 25
Citations - 980
W. Graham is an academic researcher from IBM. The author has contributed to research in topics: Polyimide & Layer (electronics). The author has an hindex of 11, co-authored 25 publications receiving 953 citations.
Papers
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Journal ArticleDOI
High-speed signal propagation on lossy transmission lines
Alina Deutsch,G.V. Kopcsay,Vincent Ranieri,J. Cataldo,Eileen A. Galligan,W. Graham,Richard P Mcgouey,Sharon L. Nunes,Jurij R. Paraszczak,John J. Ritsko,Russell J. Serino,D. Y. Shih,Janusz S. Wilczynski +12 more
TL;DR: The paper addresses the problems found on lossy lines, such as reflections, rise-time slowdown, increased delay, attenuation, and crosstalk, and suggests methods for controlling these effects in order to maintain distortion-free propagation of high-speed signals.
Journal ArticleDOI
A Practical Implementation of Silicon Microchannel Coolers for High Power Chips
Evan G. Colgan,Bruce K. Furman,Michael A. Gaynes,W. Graham,Nancy C. LaBianca,John H. Magerlein,Robert J. Polastre,M.B. Rothwell,Raschid J. Bezama,Rehan Choudhary,Kenneth C. Marston,Hilton T. Toy,Jamil A. Wakil,Jeffrey A. Zitz,Roger R. Schmidt +14 more
TL;DR: In this paper, the authors describe a practical implementation of a single-phase Si microchannel cooler designed for cooling very high power chips such as microprocessors, which is able to cool chips with average power densities of 400W/cm2 or more.
Proceedings ArticleDOI
A practical implementation of silicon microchannel coolers for high power chips
Evan G. Colgan,Bruce K. Furman,A. Gaynes,W. Graham,Nancy C. LaBianca,John H. Magerlein,Robert J. Polastre,M.B. Rothwell,Raschid J. Bezama,Rehan Choudhary,Kenneth C. Marston,Hilton T. Toy,Jamil A. Wakil,Jeffrey A. Zitz +13 more
TL;DR: In this article, the authors describe a practical implementation of a single-phase Si microchannel cooler designed for cooling very high power chips such as microprocessors, achieving a unit thermal resistance of 10.5 C-mm/sup 2/W from the cooler surface to the inlet water with a fluid pressure drop of less than 35 kPa.
Patent
Nano/Microwire Solar Cell Fabricated by Nano/Microsphere Lithography
TL;DR: In this paper, a method for fabricating a solar cell is described, which includes the following steps: a monolayer of spheres is deposited onto the substrate. The spheres include nanospheres, microspheres or a combination thereof. The trimmed spheres are used as a mask to pattern wires in the substrate, and a doped emitter layer is formed on the patterned wires.
Journal ArticleDOI
Electroless Deposition of Cu on Glass and Patterning with Microcontact Printing
Emmanuel Delamarche,James Vichiconti,Shawn A. Hall,Matthias Geissler,W. Graham,Bruno Michel,Ronald W. Nunes +6 more
TL;DR: In this paper, the authors used microcontact printing to pattern a metal onto 15 × 15 sq-inch glass substrates by self-assembly of a thin layer of amino-derivatized silanes to the glass, binding Pd/Sn catalytic particles to the silanes, electroless deposition of ∼120 nm of Cu on the catalytic surface, and selectively etching the printed Cu using hexadecanethiol as a resist.