摘要:
A gas purged counter-electrode prevents the counter-electrode from being covered with dielectric material by flowing gas past a surface of a metal element. The gas purged counter-electrode produces a relatively high-density plasma which effectively acts as the counter-electrode for a coating system. The gas purged counter-electrodes can be used with PECVD or sputtering systems.
摘要:
An array of hollow cathodes can be made by mounting a housing connected to a source of plasma precursor gas and to a source of power in a vacuum chamber, said housing having a plurality of uniformly spaced openings in a wall thereof into which a plasma can be generated. A substrate to be treated is mounted parallel to and spaced a preselected distance from said openings. In operation, a plurality of plasma torches is created extending from the openings which can plasma etch and remove coatings on said substrate.
摘要:
A trap with a residence time at least equal to one complete cycle time of an atomic layer deposition (ALD) process traps the gaseous effluent from a reaction chamber and reaction products before the effluent can enter a backing pump. The trap may be connected directly to the reaction chamber or indirectly through a process pump. The trap is advantageously used in atomic layer deposition processes.
摘要:
A method and apparatus for producing a liquid mixture in which mixture components are mixed to produce a product stream having a predetermined concentration of a specified component. This mixing occurs within a fluidic network designed such that the components mix in inlet branches to form a first intermediate mixture having a lower concentration than that desired in the product stream. The specified component is metered into the intermediate product stream to produce a second intermediate product stream that is blended to produce a third intermediate product stream. The concentration of the specified component within the third intermediate product stream is measured and the metering pump is appropriately adjusted. The third intermediate product stream then passes through a recycle loop in which recycled product is mixed with an intermediate product stream to produce a liquid mixture stream that is divided into the recycle stream and a product stream.
摘要:
A method of forming a patterned, poly-crystalline diamond film on a substrate is disclosed. First, a photoresist layer is applied to a substrate. A diamond powder layer is formed on the photoresist layer either through spray-coating, dip-coating, spin-coating using a diamond-powder suspension, and the like. The photoresist layer is exposed to electromagnetic radiation through a mask either before or after the diamond powder layer is applied. Then, the photoresist layer is developed, after which the substrate is heated causing the photoresist layer to carbonize. The substrate is exposed to a mixture of hydrogen-containing and carbon-containing gases which are decomposed in a processing apparatus. Hydrogen in this gas mixture etches away at the carbonized photoresist layer leaving behind the patterned diamond powder layer. Carbon in these carbon-containing gases combines with the diamond particles in the diamond powder layer to form diamond structures on the substrate.
摘要:
A method and apparatus for developing an image wherein a distance between a charge receiving surface and a conductive surface is varied. During charging of the charge receiving surface, the receptor thickness is smaller than during the development step.
摘要:
Disclosed is an electrographic imaging member consisting essentially of a supporting substrate, a hydrogenated amorphous silicon photogenerating layer, and in contact therewith a charge transporting layer of plasma deposited silicon oxide containing at least 50 atomic percent of oxygen.
摘要:
A device for the turning of flat articles, particularly blanks of folded boxes, includes conveying elements which define at least two conveying sections that are permeable to air and on which the articles are conveyed lying substantially flat, the conveying elements being mounted in a frame, a suction device arranged below the conveying element and to extend through the conveying section to increase the friction between the conveying elements and the articles, and a separate drive for each of the conveying elements of the respective conveying sections. The frame is mounted such that it can swivel about a pivot in the exit region of the frame relative to a machine frame.
摘要:
An inductively heated trap for treating and removing compounds from an exhaust stream. More particularly, a method and apparatus for inductively heating a trap installed in the exhaust stream of a semiconductor process, wherein the trap decomposes exhaust gas compounds prior to entering a vacuum exhaust pump. The trap treats precursor compounds, such as metal organic and halide compounds, by thermally radicalizing the precursor vapors prior to entering the vacuum pump. The trap may be used in a variety of applications including atomic layer deposition, chemical vapor deposition and perfluorocarbon abatement.
摘要:
The present invention relates to turbomolecular vacuum pumps and an arrangement for reducing or eliminating an accumulated static charge in the rotor caused by an interaction of the rotor with either electrically charged or neutral particles in the pumped media. Electrical charge exchange between the rotor and the electrically grounded stator is effected through a wire or other means of electrical contact, or through charge emission devices such as a field emission tip. In either case, electrostatic charges in the rotor are reduced or eliminated.