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Displaying records 41 to 48.
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41. Synchrotron-Based Measurement of the Impact of Thermal Cycling on the Evolution of Stresses in Cu Through-Silicon Via
Topic: Semiconductors
Published: 6/30/2014
Authors: Chukwudi Azubuike Okoro, Lyle E Levine, Ruqing Xu, Klaus Hummler, Yaw S Obeng
Abstract: One of the main causes of failure during the lifetime of microelectronics devices is their exposure to fluctuating temperatures. In this work, synchrotron-based X-ray micro-diffraction is used to study the evolution of stresses in copper through-sili ...

42. Tensile measurement of single crystal gallium nitride nanowires on MEMS test stages
Topic: Semiconductors
Published: 4/18/2010
Authors: J. J. Brown, A. I. Baca, Kristine A Bertness, D. A. Dikin, R. S. Ruoff, Victor M. Bright
Abstract: This paper reports the first direct tensile tests on nearly defect free, n-type (Si-doped) gallium nitride single crystal nanowires. Here, for the first time, nanowires have been integrated with actuated, active microelectromechanical (MEMS) structur ...

43. Terahertz Mobility Measurements on P3HT Films: Device Comparison, Molecular Weight and Film Processing Effects
Topic: Semiconductors
Published: 1/17/2008
Authors: Okan Esenturk, Joseph S Melinger
Abstract: We report the first direct comparison of relative carrier mobilities in semiconducting organic polymer films measured using non-contact optical pump terahertz probe spectroscopy to those reported in electrical device studies. Relative transient sign ...

44. Test Chip to Evaluate Measurement Methods for Small Capacitances
Topic: Semiconductors
Published: 3/30/2009
Authors: Joseph J Kopanski, Muhammad Yaqub Afridi, Chong Jiang, Curt A Richter
Abstract: We designed and fabricated a test chip to help us evaluate the performance of new approaches to measurement of small capacitances (femto-Farads to atto-Farads range). The test chip consists of an array of metal-oxide-semiconductor capacitors, metal-i ...

45. Thermal Stability of Confined Flip-Chip Laminated w-Functionalized Monolayers
Topic: Semiconductors
Published: 12/3/2009
Authors: Mariona Coll Bau, Curt A Richter, Christina Ann Hacker
Abstract: We present the results of an IR study of the effect of temperature on the formation of Au-monolayer-Si molecular junctions by using a flip-chip lamination approach. Carboxylic acid-terminated alkanethiols self-assembled on ultrasmooth gold substrate ...

46. Thermo-Mechanical Characterization of Au‹In Transient Liquid Phase Bonding Die-Attach
Topic: Semiconductors
Published: 4/9/2013
Authors: Brian Joseph Grummel, Habib A Mustain, Z. John Shen, Allen R Hefner Jr.
Abstract: In next-generation wide-bandgap power electronics, the semiconductor device die-attach is of critical importance, for this transient liquid phase (TLP) bonding is a promising and effective die-attach technique. In this work, the thermal and mechanica ...

47. Wafer-level Hall Measurement on SiC MOSFET
Topic: Semiconductors
Published: 10/11/2009
Authors: Liangchun (Liangchun) Yu, Kin P Cheung, Vinayak Tilak, Greg Dunne, Kevin Matocha, Jason P Campbell, John S Suehle, Kuang Sheng

48. X-Ray Micro-Beam Diffraction Measurement of the Effect of Thermal Cycling on Stress in Cu TSV: A Comparative Study
Topic: Semiconductors
Published: 5/26/2014
Authors: Chukwudi Azubuike Okoro, Lyle E Levine, Yaw S Obeng, Klaus Hummler, Ruqing Xu
Abstract: Microelectronic devices are subjected to constantly varying temperature conditions during their operational lifetime, which can lead to their failure. In this study, we examined the impact of thermal cycling on the evolution of stresses in Cu TSVs us ...

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