System, devices and methods are presented that integrate stretchable or flexible circuitry, including arrays of active devices for enhanced sensing, diagnostic, and therapeutic capabilities. The invention enables conformal sensing contact with tissues of interest, such as the inner wall of a lumen, a the brain, or the surface of the heart. Such direct, conformal contact increases accuracy of measurement and delivery of therapy. Further, the invention enables the incorporation of both sensing and therapeutic devices on the same substrate allowing for faster treatment of diseased tissue and fewer devices to perform the same procedure.

Systems,methods, and devices having stretchable integrated circuitry for sensing and delivering therapy

System, devices and methods are presented that integrate stretchable or flexible circuitry, including arrays of active devices for enhanced sensing, diagnostic, and therapeutic capabilities The invention enables conformal sensing contact with tissues of interest, such as the inner wall of a lumen, a nerve bundle, or the surface of the heart Such direct, conformal contact increases accuracy of measurement and delivery of therapy

Systems, methods, and devices using stretchable or flexible electronics for medical applications

A system, device and method are presented for utilizing stretchable active integrated circuits with inflatable bodies. The invention allows for such operative features to come into direct contact with body structures, such as the inner wall of a lumen. Such direct contact increases accuracy of measurement and delivery of therapy.

Catheter balloon having stretchable integrated circuitry and sensor array

An electrode assembly for a plasma reaction chamber used in semiconductor substrate processing. The assembly includes an upper showerhead electrode which is mechanically attached to a backing plate by a series of spaced apart cam locks. A guard ring surrounds the backing plate and is movable to positions at which openings in the guard ring align with openings in the backing plate so that the cam locks can be rotated with a tool to release locking pins extending from the upper face of the electrode.

Clamped monolithic showerhead electrode

Provided are solar cells, photovoltaics and related methods for making solar cells, wherein the solar cell is made of ultrathin solar grade or low quality silicon. In an aspect, the invention is a method of making a solar cell by providing a solar cell substrate having a receiving surface and assembling a printable semiconductor element on the receiving surface of the substrate via contact printing. The semiconductor element has a thickness that is less than or equal to 100 μm and, for example, is made from low grade Si.

Arrays of ultrathin silicon solar microcells

Provided is a method for the preparation of polycrystalline silicon in which, in conducting preparation of polycrystalline silicon by the Siemens method or by the monosilane method, no outer heating means is necessitated for the core member (seed rod), onto which polycrystalline silicon is deposited, from the initial stage of heating, the deposition rate is high and the core member seed rod can be used repeatedly. The method for deposition of high-purity polycrystalline silicon, at a high temperature, onto a white-heated seed rod in a closed reaction furnace by pyrolysis or hydrogen reduction of a starting silane gas supplied thereto, is characterized in that the seed rod is a member made from an alloy having a recrystallization temperature of 1200° C. or higher. It is preferable that the alloy member is of an alloy of Re—W, W—Ta, Zr—Nb, titanium-zirconium, or a carbon-added molybdenum (TZM) in the form of a wire member having a diameter of at least 0.5 mm, a plate member having a thickness of at least 1 mm or a prismatic member, or a tubular member having a diameter of at least 1 mm, wall thickness of at least 0.2 mm with an inner diameter not exceeding 5 mm, that the plate member, wire member, prismatic member or tubular member has a tapered form and further that the tubular member is a tapered duplex tube.

Method for manufacturing polycrystalline silicon, and polycrystalline silicon for solar cells manufactured by the method

PROBLEM TO BE SOLVED: To obtain an alloy in which the Al3Ti structure formed in the solidifying stage is refined, thereby shrinkage cavities are reduced, plastic working is hardly needed, and cracking is hard to be generated even if plastic working is executed, to pure aluminum contg. inevitable impurities, by specifying the compositional amt. of carbon and the compositional amt. of titanium with respect to pure aluminum with inevitable impurities. SOLUTION: In an Al-Ti-C aluminum alloy for casting, based on pure aluminum contg. inevitable impurities, the compositional amt. of carbon is controlled to 0.1 to 1.5 wt.%, and the compositional amt. of titanium lies in the range in which the value subtracted four times of the carbon compositional amt. (weight%) from the titanium compositional amt. (weight%) is made 1.6 to 13 wt.%. In this aluminum alloy for casting, the Al3Ti structure formed in the solidifying stage is refined and uniformized, so that shrinkage cavities in the cast product can remarkably be reduced to improve the productive yield, furthermore, defects in the product are few, the quality and strength are improved, and cracking in the product is hard to be generated even if plastic working is executed.

Aluminum alloy for casting

PROBLEM TO BE SOLVED: To make an external heating means for heating a core material for the precipitation and adhesion of a polycrystalline silicon unnecessary even in the period of an initial heating, to allow enhanced precipitation and adhesion speed from an initial stage of the reaction, and to further allow repeated use of the core material. SOLUTION: In a method for precipitating high purity polycrystalline silicon, comprising supplying a silane gas as a raw material onto a red-hot seed rod at a high temperature in a sealed reaction furnace and subjecting the silane gas to pyrolysis or the reduction by hydrogen, a member made of an alloy having a re-crystallization temperature of ≥1,200°C is used as the seed rod. Preferably, the member made of an alloy having a re-crystallization temperature of ≥1,200°C is made of Re-W, W-Ta, Zr-Nb or a titanium-zirconium-carbon-added molybdenum (TZM) alloy. The member is a wire having a diameter of ≥0.5 mm, a sheet or a square bar having a thickness of ≥1 mm or a tube having a diameter of ≥1 mm, a thickness of ≥0.2 mm and an inner diameter of ≤5 mm. Further, preferably, the sheet, the wire, the square bar or the tube has a taper, and more preferably, the tube is a hollow double tube having a taper. COPYRIGHT: (C)2006,JPO&NCIPI

Method for producing polycrystalline silicon and polycrystalline silicon for photovoltaic power generation produced by the method

A method for producing a polycrystalline silicon wherein a silane gas as a raw material is supplied onto a red-hot seed rod in a sealed reaction furnace, to thereby subject the silane gas to pyrolysis or the reduction by hydrogen and precipitate a high purity polycrystalline silicon, characterized in that a member made of an alloy having a re-crystallization temperature of 1200˚C or higher is used as the seed rod. Preferably, the member made of an alloy having a re-crystallization temperature of 1200˚C or higher is made of Re-W, W-Ta, Zr-Nb or a titanium-zirconium-carbon added molybdenum (TZM) alloy and has a shape of a wire having a diameter of 0.5 mm or more, a sheet or a square bar having a thickness of 1 mm or more or a tube having a diameter of 1 mm or more, a thickness of 0.2 mm or more and an inner diameter of 5 mm or less. The above method needs no external heating means for heating a core material for the precipitation and adhesion of a polycrystalline silicon even in the period of an initial heating, and allows the enhanced speed of precipitation and adhesion from an initial stage of the reaction, and further allows the repeated use of the core material.

Hiroshi Hagimoto

Papers

Method for manufacturing polycrystalline silicon, and polycrystalline silicon for solar cells manufactured by the method

Aluminum alloy for casting

Method for producing polycrystalline silicon and polycrystalline silicon for photovoltaic power generation produced by the method

Method for producing polycrystalline silicon and polycrystalline silicon for solar cell produced by the method