Abstract:
The present invention relates to a method for forming a compressed and cut bale of fibrous material, whereby the bale of fibrous material has at least one cut that allows the material to be separated into two distinct and separate layers. The present invention also relates to the compressed and cut fibrous material.
Abstract:
A random access memory (RAM) cell in 6H-SiC having storage times when all bias is removed long enough to be considered nonvolatile. The nonvolatile random access memory (NVRAM) cell comprises a bit line, a charge storage device in silicon carbide, and a transistor in silicon carbide connecting the charge storage device to the bit line. The bipolar NVRAM cell has a bipolar transistor with a base region, an emitter region, and a floating collector region, wherein the charge storage device in the bipolar NVRAM is a p-n junction adjacent the floating collector region of the cell. The metal-oxide-semiconductor (MOS) NVRAM has a MOS field effect transistor (MOSFET) with a channel region, a source region, and a drain region, wherein the charge storage device in the MOS NVRAM is a MOS capacitor adjacent the drain region of the MOSFET.
Abstract:
A transferred electron device is described in which the charge of the drifting packets is imaged perpendicular to the charge-packet direction so that essentially all of the packet-averaged, space-charge field is normal to the drift direction. This permits continuous formation of contiguous charge packets.
Abstract:
Semiconductor structures suitable for repeated velocity overshoot are described. The structure comprises at least two velocity overshoot sections with each section comprising a first semiconductor region having a rapid change in potential and a dimension such that the carrier transit time is comparable to or shorter than the mean scattering time and a second semiconductor region having a more gradual change in potential and a dimension such that the carrier transit time is sufficient to allow the energy relaxation time to be exceeded.
Abstract:
An engine oil cooler backflush valve assembly is provided as a replacement cap to an engine oil cooler EGR coolant supply cover. The backflush valve assembly includes a main body through which a valve stem is inserted. The valve stem has a bushing threadedly attached thereto which moves the valve stem between first and second positions. A removable cap is provided to cover the backflush valve assembly during normal operation and to be removed during backflush operation. A removable lock can also be used to secure the cap and/or bushing to the main body of the assembly.
Abstract:
The invention provides a mount for installing an electrical fixture to an electrical junction box. The mount includes a support configured for independent attachment to said junction box and said electrical fixture respectively for mounting said fixture to said junction box. The mount further includes at least one electrical quick connect member engaged to said support comprising a first connection element for forming an electrical connection with a electrical wire and a second connection element for forming an electrical connection a fixture electrical wires. The first and second connection elements are electrically connected or connectible together to form an electrical connection between the source wires and the fixture wires.
Abstract:
A silicon carbide power MOSFET having a drain region of a first conductivity type, a base region of a second conductivity type above the drain region, and a source region of the first conductivity type adjacent an upper surface of the base region, the base region including a channel extending from the source region through the base region adjacent a gate interface surface thereof, the channel having a length less than approximately 0.6 μm, and the base region having a doping concentration of the second conductivity type sufficiently high that the potential barrier at the source end of the channel is not lowered by the voltage applied to the drain. The MOSFET includes self-aligned base and source regions as well as self-aligned ohmic contacts to the base and source regions.
Abstract:
Disclosed herein is an easy and well-integrated method of etching features to different depths in a crystalline substrate, such as a single-crystal silicon substrate. The method utilizes a specialized masking process and takes advantage of a highly selective etch process. The method provides a system of interconnected, variable depth reservoirs and channels. The plasma used to etch the channels may be designed to provide a sidewall roughness of about 200 nm or less. The resulting structure can be used in various MEMS applications, including biomedical MEMS and MEMS for semiconductor applications.
Abstract:
Disclosed herein is a method of improving the adhesion of a hydrophobic self-assembled monolayer (SAM) coating to a surface of a MEMS structure, for the purpose of preventing stiction. The method comprises pretreating surfaces of the MEMS structure with a plasma generated from a source gas comprising oxygen and, optionally, hydrogen. The treatment oxidizes the surfaces, which are then reacted with hydrogen to form bonded OH groups on the surfaces. The hydrogen source may be present as part of the plasma source gas, so that the bonded OH groups are created during treatment of the surfaces with the plasma. Also disclosed herein is an integrated method for release and passivation of MEMS structures.
Abstract:
Method and apparatus are provided for one-way transformation of data according to multiplication and/or exponentiation modulo a prime number. An implementation of the invention permits the one way residue transformation, useful in encryption and similar applications, to be implemented by n-bit computers substantially with no increase in difficulty or complexity over a natural transformation thereby, using a modulus which is a power of two.