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94results about How to "Low cost method" patented technology

Methods to fabricate thin film transistors and circuits

A method for fabricating a thin film field effect transistor is described in this invention. The active layer of the thin film transistor (TFT) is formed by a low cost chemical bath deposition method. The fabrication procedure includes deposition of a metal layer on an insulating substrate, patterning of the metal layer to form a metal gate, formation of the di-electric layer, deposition of the active layer and formation of source and drain contacts.
Owner:MCGILL UNIV OFFICE OF TECH TRANSFER

Semiconductor flip-chip package and method for the fabrication thereof

A flip-chip device and process for fabricating the device employs a multilayer encapsulant that includes a first portion encapsulant having a coefficient of thermal expansion of at most 30 ppm / .degree. C. and an elastic modulus of 2-20 GPa and a second portion comprising a polymer flux having a coefficient of thermal expansion that may exceed 30 ppm / .degree. C.
Owner:INVENSAS CORP

Semiconducting nanowire arrays for photovoltaic applications

This invention relates to the fabrication of nanowires for electrical and electronic applications. A method of growing silicon nanowires using an alumina template is disclosed whereby the aluminum forming the alumina is also used as the catalyst for growing the silicon nanowires in a VLS (CVD) process and as the semiconductor dopant. In addition, various techniques for masking off parts of the aluminum and alumina in order to maintain electrical isolation between device layers is disclosed.
Owner:ILLUMINEX CORP

Inkjet media, recording method, recording apparatus, ink-media set, and ink recorded matter

To provide an ideal inkjet recording method capable of full-color printing and of inexpensively providing prints that have a texture similar to those of commercial prints and that offer excellent print quality, image density, image fidelity and smear resistance, by combining a specific recording media and a specific pigment-based inkjet ink. The inkjet recording method uses an ink containing particulate coloring material for printing on a media that includes a substrate composed primarily of cellulose pulp and one or more coated layers formed on at least one surface of the substrate, wherein the media has an air permeability of 0.1 ml / min to 30 ml / min as measured using a Parker Print-Surf.
Owner:RICOH KK

Controlling Flip-Chip Techniques for Concurrent Ball Bonds in Semiconductor Devices

A device has a first semiconductor chip (101) with contact pads in an interior first set (102) and a peripheral second set (103). A deformed sphere (104) of non-reflow metal such as gold is placed on each contact pad of the first and second sets. At least one additional deformed sphere (105) is placed on the first set pads, forming column-shaped spacers. The first chip is attached to a substrate (110) with a chip attachment location and a third set of contact pads (112) near the location. Low profile bond wires (130) span between the pads of the third set and the second set. A second semiconductor chip (140) of a size has a fourth set of contact pads (141) at locations matching the first set pads. The second chip is placed over the first chip so that the fourth set pads are aligned with the spacers on the matching first set pads, and at least one edge of the second chip overhangs the sphere on at least one pad of the second set. A reflow metal (142) bonds the spacers to the second chip, while the spacers space the first and second chips by a gap (105a) wide enough for placing the wire spans to the second set pads.
Owner:TEXAS INSTR INC

Large-scale photo-bioreactor using flexible materials, large bubble generator, and unfurling site set up method

A closed photo-bioreactor, which in at least one example comprises a plurality of flexible, repeating, substantially enclosed, parallel chambers flexibly connected along their lengths, where a liquid growth media is substantially still without the need for turbulent mixing of the bulk liquid. In many examples, each is connected into integrated, flexible pipelines that serve to supply gas to the chambers, to vent gas from the chambers, and to fill and drain the individual photo-bioreactor chambers of their liquid contents. In some installations, a bioreactor will be rolled up using, for example, a long rod as a spool, for storage and transportation. Some examples will be manually unfurled and positioned on an angled site including, for example, an earthen berm. In many embodiments, a photo-bioreactor will be manufactured from thin plastics using low cost manufacturing techniques. In at least one example, a photo bioreactor is described in which bubbles with a substantially non-convex shape are introduced to mix the liquid contents.
Owner:SUNRISE RIDGE HLDG

Tool holder assembly and method for modulation-assisted machining

A tool holder assembly and method for intentionally inducing modulation in a machining process. The tool holder assembly is configured for mounting in a tool block on a machining apparatus and includes a tool holder body configured to be secured to the tool block of the machining apparatus, a tool holder mounted on the tool holder body and configured for securing a cutting tool thereto, and a device for imposing a superimposed modulation on the tool holder so as to move the cutting tool relative to the tool holder body and thereby relative to the tool. The tool holder assembly is useful in a process for producing chips having a desired shape and size, and particularly to a method of controllably producing nanocrystalline chips.
Owner:PURDUE RES FOUND INC

Treatment of fly ash

InactiveUS20090314185A1Effectively surface oxidationEnhance ionized air effectElectrolysis componentsSolid waste managementUltraviolet radiationUltraviolet
Treated carbon-containing fly ash with reduced surfactant-adsorbing capacity is prepared by processing involving contacting the fly ash with ionized gas prepared from a humid gas feed, such as humid air. Treated fly ash with reduced ammonia content is prepared by processing involving contacting the fly ash with ionized gas prepared from a humid gas feed, such as humid air, or exposing the fly ash to microwave radiation or ultraviolet radiation.
Owner:MATRIX INC

Data processing apparatus and method, and network system

In a network system for sending data to a plurality of terminals, a data processing apparatus has a plurality of coding units that code outgoing data including at least video or voice data for transmission to terminals over a network. The data processing apparatus obtains information about the terminals, groups the terminals according to the information, and transmits the coded outgoing data obtained from each coding unit to a different group of terminals. Appropriate grouping of the terminals conserves both network and coding resources and enables the quality of the data transmitted to the terminals to be improved at a low cost.
Owner:OKI ELECTRIC IND CO LTD

Low-cost substrates having high-resistivity properties and methods for their manufacture

In one embodiment, the invention provides substrates that are structured so that devices fabricated in a top layer thereof have properties similar to the same devices fabricated in a standard high resistivity substrate. Substrates of the invention include a support having a standard resistivity, a semiconductor layer arranged on the support substrate having a high-resistivity, preferably greater than about 1000 Ohms-cm, an insulating layer arranged on the high-resistivity layer, and a top layer arranged on the insulating layer. The invention also provides methods for manufacturing such substrates.
Owner:SOITEC

Charged particle beam detection system

A charged particle beam detection system that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) that allows collecting and integrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit, which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector. The device measures further absolute ion currents, has a wide dynamic range from 1.7 pA to 1.2 μA with a crosstalk of less than 750:1. The integration of the electronic multiplexing unit with the FCDA further allows reducing the number of feedthroughs that are needed to operate the detector.
Owner:UNIV OF WASHINGTON

Method for generating identification code of semiconductor device, method for identifying semiconductor device and semiconductor device

A semiconductor device including memory cells such as flip-flops, RAMs or SRAMs is powered on, and first logic signals of Hi or Lo output from the respective memory cells are obtained. A combination of the logic signals is used as a unique identification code for identifying a semiconductor device.
Owner:PANASONIC CORP

Sealing and protecting integrated circuit bonding pads

A metal structure (600) for a bonding pad on integrated circuit wafers, which have interconnecting metallization (101) protected by an insulating layer (102) and selectively exposed by windows in the insulating layer. The structure comprises a patterned seed metal layer (104) positioned on the interconnecting metallization exposed by the window so that the seed metal establishes ohmic contact to the metallization as well as a practically impenetrable seal of the interface between the seed metal and the insulating layer. Further, a metal stud (301) is formed on the seed metal and aligned with the window. The metal stud is conformally covered by a barrier metal layer (501) and an outermost bondable metal layer (502).
Owner:TEXAS INSTR INC

Rapid triglyceride assay for use in pulp pitch control

Enzymatic methods are provided for determining the surface triglycerides content in a sample of wood pulp. The methods preferably comprise reacting triglycerides which are present on the surface of the wood pulp fibers in the sample in the presence of a lipase to form glycerol and fatty acids, and then determining the difference between the amount of free glycerol present in the sample and the amount of glycerol formed from said triglycerides. The method is useful as a quick, portable, accurate, and low cost assay for assessing the amount of triglycerides present at various sample points in pulp and paper mills, which advantageously serves as a diagnostic tool for use in controlling the undesirable deposition of pitch during the papermaking process.
Owner:ENZYMATIC DEINKING TECH LLC

Light source unit and object reader

A light source unit and reader can include a line light source that is attached to a radiator and a rod lens that is attached above the line light source. The radiator with the line light source and the rod lens attached thereto, and a linear strip-shaped reflector arranged in front of the rod lens, are housed in a carriage. The carriage is supported beneath contact glass and movable in a direction normal to a longitudinal axis of the line light source. The lens has a section in a plane normal to a longitudinal axis of the lens, in which a surface of the lens facing the light source has a curved line that expands or is convexly facing toward the light source. The opposite surface of the lens from the light source has composite curves including a plurality of continuous curves with different radii of curvature. The composite curves are located on both sides of a plane containing the optical axis of the LED and expand or are convex in an opposite direction from the light source.
Owner:STANLEY ELECTRIC CO LTD

User positioning

The invention proposes a method for locating a network element, comprising the steps of obtaining (S1) the coordinates (xS, yS) of a second network element (BTS) to which the first network element (MS) is connected or attached; detecting (S2) a serving area (S), which is served by the second network element (BTS); detecting (S3) a propagation delay of the first network element with respect to the second network element (BTS); determining (S4) a propagation delay depending area (C), which is an area having a distance to the second network element (BTS) based on the propagation delay and a width based on the propagation delay; and forming (S5) an intersection area (I) of the serving area (S) and the propagation delay depending area (C); wherein a location estimate of the first network element (MS) is determined (S6) from the intersection area (I). Thus, an uncertainty area where a first network element is located can be reduced and the location accuracy can be improved.
Owner:WSOU INVESTMENTS LLC

Method and structure to enhance temperature/humidity/bias performance of semiconductor devices by surface modification

A method is disclosed of repairing wirebond damage on semiconductor chips such as high speed semiconductor microprocessors, application specific integrated circuits (ASICs), and other high speed integrated circuit devices, particularly devices using low-k dielectric materials. The method involves surface modification using reactive liquids. In a preferred embodiment, the method comprises applying a silicon-containing liquid reagent precursor such as TEOS to the surface of the chip and allowing the liquid reagent to react with moisture to form a solid dielectric plug or film (50) to produce a barrier against moisture ingress, thereby enhancing the temperature / humidity / bias (THB) performance of such semiconductor devices.
Owner:GLOBALFOUNDRIES INC

Production Method of Multilayer Electronic Device

A production method of a multilayer electronic device, comprising the steps of forming a green sheet 10a; forming an electrode layer 12a on a surface of the green sheet 10a; stacking the green sheets 10a, each having the electrode layer 12a thereon, to form a green chip; and firing the green chip: wherein before stacking the green sheet 10a having the electrode layer 12a formed thereon, an adhesive layer 28 is formed on a surface on the electrode layer side of the green sheet 10a having the electrode layer 12a formed thereon; and the green sheet 10a having the electrode layer 12a formed thereon is stacked via the adhesive layer 28.
Owner:TDK CORPARATION

Copper-metallized integrated circuits having electroless thick copper bond pads

A metal structure (100) for a contact pad of a semiconductor device, which has interconnecting traces of a first copper layer (102). The substrate is protected by an insulating overcoat (104). In the structure, the first copper layer of first thickness and first crystallite size is selectively exposed by a window (110) in the insulating overcoat. A layer of second copper (105) of second thickness covers conformally the exposed first copper layer. The second layer is deposited by an electroless process and consists of a transition zone, adjoining the first layer and having copper crystallites of a second size, and a main zone having crystallites of the first size. The second thickness is selected so that the distance a void from the second layer can migrate during the life expectancy of the structure is smaller than the combined thicknesses of the first and second layers. A layer of nickel (106) is on the second copper layer, and a layer of noble metal (107) is on the nickel layer.
Owner:TEXAS INSTR INC

Method for determining the rotational velocity of an axle and detecting a locked axle condition

A method for detecting a rotational velocity of a traction motor in a vehicle comprising: obtaining a traction motor signal having at least one phase, wherein the traction motor signal is responsive to an operating condition of the traction motor in an electrically unexcited state. The method also includes processing the traction motor signal to create an indication result based on a frequency of the traction motor signal and determining rotational velocity of the traction motor based on the indication result.
Owner:GE GLOBAL SOURCING LLC

Structure and method for contact pads having an overcoat-protected bondable metal plug over copper-metallized integrated circuits

A metal structure for a contact pad of an integrated circuit (IC), which has copper interconnecting metallization (311). A portion (301) of this metallization is exposed to provide a contact pad to the IC. A conductive barrier layer (330) is positioned on the exposed portion of the copper metallization. A plug (350) of bondable metal, preferably aluminum between about 0.4 and 1.4 μm thick, is positioned on the barrier layer. A protective overcoat layer (320) surrounds the plug and has a thickness (320b) so that the exposed surface (322) of the plug lies at or below the exposed surface (320a) of the overcoat layer. Optionally, a portion (321) of the overcoat layer between about 0.1 and 0.3 μm wide may overlap the perimeter of the plug.
Owner:TEXAS INSTR INC

Through-Silicon Vias and Interposers Formed by Metal-Catalyzed Wet Etching

Provided are methods for making a through-silicon via feature in a silicon substrate and related systems, such as by forming a noble metal structure on a silicon substrate support surface to generate silicon substrate contact regions that are in contact with or proximate to the noble metal structure; exposing at least a portion of the silicon substrate support surface and noble metal structure to an etchant to preferentially etch the silicon substrate contact regions compared to silicon substrate non-contact regions until the etch front reaches the silicon substrate bottom surface.
Owner:X DISPLAY CO TECH LTD
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