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133 Results for 'Semiconductors & Integrated Circuits'
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Technology
Microcavity Method for Single Molecule Spectroscopy
Single molecule spectroscopy and microscopy – a popular tool for biological, biophysical and chemical characterization – generally requires the use of fluorescent molecules. Researchers at UW–M...
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Randall Goldsmith, Kevin Heylman | P140153US03
Technology
Zinc Oxide Thin Films Have Higher Electron Mobility
Zinc oxide (ZnO) is an inorganic semiconductor with applications in large area photovoltaics and transparent electronics. Producing zinc oxide thin films with excellent electronic properties is challe...
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Paul Evans, Josef Spalenka | P130004US02
Technology
Wrapper Cell for Hierarchical System-on-Chip Testing
Complex integrated circuits must be individually tested during manufacturing. System-on-chip (SoC) circuits combine multiple functional elements on a single substrate. For example, such systems may co...
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Kewal Saluja, Kyuchull Kim | P110103US01
Technology
Ferroelectric Thin Films for Improving Memory Technology
The semiconductor industry constantly is seeking new methods to improve memory speed and efficiency that are compatible with large-scale fabrication processes and environmentally-friendly.
Currently,...
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Chang-Beom Eom, Ho Won Jang | P08062US
Technology
Strain-Tunable Light Emitting Diodes Using Germanium
Germanium (Ge), a group-IV semiconductor material, is crucial to many established and potential technologies. In optoelectronics, Ge has been used as a photodetector material for on-chip data distribu...
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Max Lagally, Jose Sanchez Perez | P140041US01
Technology
Tuning Optical Microcavities
A whispering gallery mode (WGM) is a type of electromagnetic wave that travels around a concave surface. Such waves can propagate at the edge of a very small structure called an optical microcavity. W...
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Randall Goldsmith, Kevin Heylman | P140153US01
Technology
Method for Double-Sided Processing of Thin-Film Single-Crystalline Electronics
Future advances in semiconductor electronics for computers will require three-dimensional (3-D) integrated circuits that are not limited by the physics of thin film processing. In addition, flexible e...
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Paul Evans, Hao-Chih Yuan, Guogong Wang, Mark Eriksson, Max Lagally, Zhenqiang Ma | P06047US
Technology
Improved Fabrication of Strained Silicon Multilayer Structures
Chips made of strained silicon (Si) have higher electron mobility than chips made of unstrained Si, enabling the fabrication of faster semiconductor devices. Current methods of producing strained Si r...
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Max Lagally, Michelle Kelly, Donald Savage | P04286US
Technology
Directed Self-Assembly of Block Copolymers to Make Bit Patterned Media
In magnetic recording bit patterned media (BPM), each magnetic bit is physically isolated in the form of nanometer-scale islands. These features can be fabricated by nano-imprint lithography in which ...
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Paul Nealey, Guoliang Liu, Ricardo Ruiz, Elizabeth Dobisz | P110093US01
Technology
Masks for Growing Nanopatterned Polymer Brushes
Polymer brushes are a broad class of materials made of polymer chains tethered at one end to a substrate. These brushes are able to tune and modify surface properties like bioadhesion and wettability....
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Padma Gopalan, Daniel Sweat, Myungwoong Kim, Eungnak Han | P130118US01
Technology
New Surface-Modifying Film for BCP Formation
Block copolymers (BCPs) self-assemble into well-defined, highly regular and dense nanostructures. Such BCP arrays are useful for fabricating electronic devices like magnetic storage media, quantum dot...
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Padma Gopalan, Eungnak Han, Myungwoong Kim | P130124US01
Technology
Degradable Neutral Layer for BCP Lithography
The lithographic process is one of the most powerful technologies of the digital electronics era. Lithography allows hundreds of millions of components to be fabricated on a single chip with pattern f...
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Padma Gopalan, Daniel Sweat, Jonathan Choi, Myungwoong Kim | P130174US01
Technology
Reusable Virtual Substrates for Growing Semiconductor Devices
‘Virtual substrates’ comprise an underlying growth substrate and one or more metamorphic buffer layers (MBLs) made of semiconductor alloy. The MBL is graded so that its lattice constant in...
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Thomas Kuech, Kevin Schulte, Luke Mawst, Tae Wan Kim, Brian Zutter | P130206US01
Technology
Patterned Graphene for Field Effect Transistors
Interest in graphene has surged due to its outstanding electrical properties. Graphene is a two-dimensional, carbon-based material with high tensile strength, stiffness, optical transparency and therm...
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Michael Arnold, Padma Gopalan, Nathaniel Safron, Myungwoong Kim, Jonathan Choi | P110242US01
Technology
Flexible Thin-Film Transistors Are Doped and Strained
Fast, flexible electronics operating at radio frequencies (greater than 1 GHz) are attractive because of their versatility, power savings and wide applicability. Uses include wireless and high-speed c...
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Zhenqiang Ma, Max Lagally, Jung-Hun Seo | P130145US01
Technology
Achieving Non-Regular Nanostructures Using Block Copolymer Melt
In microelectronics and other precision manufacturing, the best method to create nanoscale device structures utilizes block copolymers. These are units of various polymer materials connected end-to-en...
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Paul Nealey, Roy Shenhar, Marcus Muller, Konstantinos Daoulas | P110149US02
Technology
Improved Block Copolymer Engineering for Directed Self-Assembly of Thin Films
Block copolymers (BCPs) are a class of polymers synthesized from two or more bonded units. Forming BCPs in bulk, and turning the material into thin film, can produce nanoscale structures useful to man...
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Paul Nealey, Frank Bates, Sangwon Kim | P110274US02
Technology
Smoother Waveguides for More Efficient Nonlinear Frequency Conversion
For many applications – from remote sensing to laser displays – it is necessary to convert the frequency of light via nonlinear interaction in semiconductor materials. Waveguide devices accomplish...
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Dan Botez, Thomas Kuech, Luke Mawst, Steven Ruder | P120326US01
Technology
Bottom-Up Patterning of Smooth Graphene Microstructures and Nanostructures
One of the strongest, lightest and most conductive materials known, graphene is an atom-thick carbon film with unrivaled high-tech potential. It is stronger than diamond but capable of bending like ru...
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Michael Arnold, Padma Gopalan, Nathaniel Safron, Myungwoong Kim | P110245US02
Technology
Improved Nansocale Patterning by Directed Assembly of Triblock Copolymers
Advances in nanoscale science and engineering have driven the fabrication of two- and three-dimensional structures with unprecedented precision. Cutting-edge progress in electronics, photonics and cel...
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Paul Nealey, Shengxiang Ji | P110137US02
Technology
Semiconductor Interconnect Design for Small, Inexpensive, Integrated Current Sensing with Improved Reliability
Semiconductors, which regulate power flow in many modern electronic devices, use interconnects such as bond wires or lead frames to integrate different components: chip, substrate and terminals. Inter...
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Robert Lorenz, Patrick Schneider, Jonathan Hoffman | P120254US01
Technology
Making Large-Scale Nanopatterned Arrays by Streamlined Roll-to-Roll Printing
Promising advances in areas like solar cells and photonic crystals are utilizing optical components with nanoscale dimensions. Unique in their ability to collect and manipulate light, these structures...
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Kevin Turner, David Grierson | P120088US01
Technology
Low-Noise, Phase-Insensitive Linear Amplification at Microwave Frequencies
Rapid development of superconducting quantum electronics has motivated a search for quantum-limited amplifiers for the low-noise readout of qubits and linear cavity resonators. Conventional approaches...
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Robert McDermott, David Hover, Guihem Ribeill, Yung-Fu Chen | P120028US01
Technology
Improved Method for Forming Nanoscale Structures Using Solvent Annealing of Block Copolymers
Devices in fields including electronics, photonics and biological engineering utilize 2-D and 3-D nanostructures. Traditional patterning methods such as photolithography and electron beam lithography ...
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Paul Nealey, Lei Wan | P110192US02
Technology
Improved Method for Making Thin Layers of Crystalline Materials
Semiconductors are used in the manufacture of many electronic and optoelectronic devices. In particular, compound semiconductors represent a large class of materials with composition ranges that can, ...
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Max Lagally, Boy Tanto, Deborah Paskiewicz | P110305US01