Abstract: A structure includes a tensile strained layer disposed over a substrate, the tensile strained layer having a first thickness. A compressed layer is disposed between the tensile strained layer and the substrate, the compressed layer having a second thickness. The first and second thicknesses are selected to define a first carrier mobility in the tensile strained layer and a second carrier mobility in the compressed layer.
Type:
Grant
Filed:
June 21, 2002
Date of Patent:
July 12, 2005
Assignee:
Massachusetts Institute of Technology
Inventors:
Christopher W. Leitz, Minjoo L. Lee, Eugene A. Fitzgerald
Abstract: The invention provides methods and systems for monitoring effects of chemical agents on optical signals produced by samples in response to the chemical agents. Preferred methods comprise application of multiple chemical agents that interact to alter an optical signal from the sample. Methods and systems of the invention also comprise monitoring an optical signal from an endogenous chromophore upon application of a chemical agent to a sample. Methods and systems of the invention also comprise the use of triggers, atomizers and image alignment to enhance the results of methods described herein.
Type:
Grant
Filed:
December 15, 2000
Date of Patent:
June 7, 2005
Assignee:
MediSpectra, Inc.
Inventors:
Howard Kaufman, Alex Zelenchuk, Ross Flewelling, Philippe Schmid, Ze'ev Hed
Abstract: Systems and methods of complex process control utilize driving factor identification based on nonlinear regression models and process step optimization. In one embodiment, the invention provides a method for generating a system model for a complex process comprised of nonlinear regression models for two or more select process steps of the process where process steps are selected for inclusion in the system model based on a sensitivity analysis of an initial nonlinear regression model of the process to evaluate driving factors of the process.
Abstract: The invention features a photoconductively addressed display and a method of photoconductive addressing in a display. The method includes providing an electro-optic imaging layer that extends in an X direction and a Y direction and comprises an array of image elements. A column electrode layer is provided adjacent to one side of the electro-optic imaging layer. The column electrode layer includes a plurality of column electrodes that each extend in the Y direction and are spaced from one another in the X direction. A photoconductive layer disposed between the electro-optic imaging layer and the column electrode layer is provided. An elongate portion of the photoconductive layer is illuminated in the X direction while scanning the illumination in the Y direction to translate a location of the illuminated elongate portion.
Type:
Grant
Filed:
February 8, 2002
Date of Patent:
May 31, 2005
Assignee:
E Ink Corporation
Inventors:
Ian D. Morrison, Rachael A. Forgit, Peter J. Valianatos, Craig A. Herb, Guy M. Danner
Abstract: Replacing liquid electrolytes with solid or quasi-solid electrolytes facilitates the production of photovoltaic cells using continuous manufacturing processes, such as roll-to-roll or web processes, thus creating inexpensive, lightweight photovoltaic cells using flexible plastic substrates.
Abstract: A method is disclosed of forming buried channel devices and surface channel devices on a heterostructure semiconductor substrate. In an embodiment, the method includes the steps of providing a structure including a first layer having a first oxidation rate disposed over a second layer having a second oxidation rate wherein the first oxidation rate is greater than the second oxidation rate, reacting said first layer to form a sacrificial layer, and removing said sacrificial layer to expose said second layer.
Abstract: Theres is disclosed a magnetic recording medium which includes a magnetizable layer thereon, wherein said magnetizable layer comprises a plurality of ferri- or ferromagnetic particles each having a largest dimension no greater than 100 nm, and each of which particles represents a separate ferromagnetic domain.
Abstract: A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate.
Abstract: A chimeric antibody with human constant region and murine variable region, having specificity to a 35 kDA polypeptide (Bp35(CD20)) expressed on the surface of human B cells, methods of production, and uses.
Type:
Grant
Filed:
August 1, 2000
Date of Patent:
May 17, 2005
Assignee:
Royalty Pharma Finance Trust
Inventors:
Randy R. Robinson, Alvin Y. Liu, Jeffrey A. Ledbetter
Abstract: A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate.
Abstract: DRAM trench capacitors formed by, inter alia, deposition of conductive material into a trench or doping the semiconductor region in which the trench is defined.
Type:
Grant
Filed:
August 13, 2002
Date of Patent:
May 10, 2005
Assignee:
AmberWave Systems Corporation
Inventors:
Mayank Bulsara, Matthew T. Currie, Anthony J. Lochtefeld
Abstract: A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate.
Abstract: A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate.
Abstract: A display is located on an interventional device insertible into a body. More specifically, the display is located on a distal end of the device and is coupled to a sensing system. The sensing system senses a bodily condition. The display receives the sensed bodily condition and displays a signal indicative of the bodily condition within a pre-existing field of view.
Abstract: A method of fabricating a CMOS inverter including providing a heterostructure having a Si substrate, a relaxed Si1-xGex layer on the Si substrate, and a strained surface layer on said relaxed Si1-xGex layer; and integrating a pMOSFET and an nMOSFET in said heterostructure, wherein the channel of said pMOSFET and the channel of the nMOSFET are formed in the strained surface layer. Another embodiment provides a method of fabricating an integrated circuit including providing a heterostructure having a Si substrate, a relaxed Si1-xGex layer on the Si substrate, and a strained layer on the relaxed Si1-xGex layer; and forming a p transistor and an n transistor in the heterostructure, wherein the strained layer comprises the channel of the n transistor and the p transistor, and the n transistor and the p transistor are interconnected in a CMOS circuit.
Abstract: A fiber optic probe and a balloon catheter used in conjunction with optical imaging systems, in particular with systems which deliver and collect a single spatial mode beam, such as a single photon, a multiphoton, confocal imaging and ranging systems, such as fluorescence imaging systems.
Type:
Grant
Filed:
June 7, 2001
Date of Patent:
April 12, 2005
Assignee:
Lightlab Imaging, LLC
Inventors:
Edward I. McNamara, Ron B. Lamport, Christopher L. Petersen, Joseph M. Schmitt
Abstract: Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.
Abstract: A six degree of freedom force reflecting haptic interface includes three powered axes and three free axes, all of which are tracked so that the position of a user connection element in the work volume can be determined. The interface includes cable drives with polymer composite or metallic cables, automatic cable tensioning devices, and grounded actuator capstans. A nested hub and transfer drive provide a compact, weight balanced interface. User comfort and safety features are also provided.
Type:
Grant
Filed:
May 13, 2002
Date of Patent:
April 12, 2005
Assignee:
SensAble Technologies, Inc.
Inventors:
Rodomista Guy, Ziegler Andrew, William A. Goodwin, Bolton Clive, Thomas H. Massie, R. Michael Lohse