76results about How to "Improve machining productivity" patented technology

A thin film etching method includes forming a layer on a substrate, aligning a mask having a pattern defined thereon above the layer, and removing a portion of the layer by irradiating the substrate with a femtosecond laser through the mask.

The present invention relates to processes and systems for the production of fermentative alcohols such as ethanol and butanol. The present invention also provides methods for separating feed stream components for improved biomass processing and productivity.

A process for separating a homogeneous metathesis catalyst and, optionally, one or more homogeneous metathesis catalyst degradation products from a metathesis reaction mixture containing in addition to said metathesis catalyst and said metathesis catalyst degradation product(s), one or more olefin metathesis products, one or more unconverted reactant olefins, and optionally, a solvent. The process involves contacting the metathesis reaction mixture with a nanofiltration membrane, such as a polyimide nanofiltration membrane, so as to recover a permeate containing a substantial portion of the olefin reaction products, the unconverted reactant olefins, and optional solvent, and a retentate containing the metathesis catalyst, and optionally, metathesis catalyst degradation product(s). In another aspect, this invention pertains to a continuous metathesis reaction-catalyst separation process, preferably, conducted in a nanofiltration membrane reactor.

The present invention relates to processes and systems for the production of fermentative products such as ethanol and butanol. The present invention also provides methods for separating feed stream components for improved biomass processing productivity.

An oxidative halogenation process involving contacting methane, a C₁ halogenated hydrocarbon, or a mixture thereof with a source of halogen and a source of oxygen, at a molar ratio of reactant hydrocarbon to source of halogen in a feed to the reactor greater than 23/1, and/or at a molar ratio of reactant hydrocarbon to source of oxygen in a feed to the reactor greater than about 46/1; in the presence of a rare earth halide or rare earth oxyhalide catalyst, to produce a halogenated C₁ product having at least one more halogen as compared with the C₁ reactant hydrocarbon, preferably, methyl chloride. The process can be advantageously conducted to total conversion of source of halogen and source of oxygen. The process can be advantageously conducted with essentially no halogen in the feed to the reactor, by employing a separate catalyst halogenation step in a pulse, swing or circulating bed mode. The production of methyl halide can be integrated into downstream processes for manufacture of valuable commodity chemicals.

An exemplary method of manufacturing a semiconductor device according to an embodiment of the present invention includes forming a P-well and an N-well for high voltage (HV) devices and a first well in a low voltage/medium voltage (LV/MV) region for a logic device, in a semiconductor substrate; simultaneously forming a second well in the LV/MV region for a logic device and a drift region for one of the HV devices using the same mask; and respectively forming gate oxide layers on the semiconductor substrate in the HV/MV/LV regions. According to the present invention, the number of photolithography processes can be reduced by replacing or combining an additional mask for forming an extended drain region of a high voltage depletion-enhancement CMOS (DECMOS) with a mask for forming a typical well of a logic device, so productivity of the total process of the device can be enhanced.

In the present invention, the productivity of a processing apparatus including a plurality of process chambers is improved. There is provided a substrate processing apparatus including a plurality of process chambers, a process gas supply unit configured to supply a process gas into each of the plurality of process chambers, a purge gas supply unit configured to supply a purge gas into each of the plurality of process chambers, an exhaust unit configured to exhaust each of the plurality of process chambers and a control unit configured to control the process gas supply unit, the purge gas supply unit and the exhaust unit to supply the process gas into a first process chamber of the plurality of process chambers to which a substrate is transferred while supplying the purge gas into process chambers other than the first process chamber and exhausting the plurality of process chambers.

The invention relates to the manufacture of titanium hydride powder using continuous or semi-continuous process, and using titanium slag or synthetic rutile as raw materials, while hydrogen, titanium tetrachloride, titanium trichloride, titanium dichloride, and hydrogen chloride are participate as intermediate reaction products. The continuous comprises: (a) reduction of TiCl₄ to low titanium chlorides followed by cooling a mixture, (b) separating of residual TiCl₄ from solid low chlorides by heating the mixture in argon or vacuum up to 150° C. followed by removing the titanium tetrachloride from the mixture, (c) dissociation of TiCl₃ to TiCl₂ at 450° C. in vacuum followed by removal of gaseous titanium tetrachloride from the reaction zone, condensation to the liquid, and returning back into the reaction retort, (d) dissociation of TiCl₂ in vacuum at 750-850° C. to manufacture fine powder of metallic titanium and titanium tetrachloride, whereby hydrogen heated up to 1000° C. is used to accelerate this reaction, and (e) saturation of the fine titanium powder by hydrogen at 400-640° C. to manufacture final product of titanium hydride powder which is free of oxygen or nitrogen. The semi-continuous process includes the Kroll's process as the very first step.

The present invention relates to processes and systems for the production of fermentation products such as alcohols. The present invention also provides methods for separating feed stream components for improved biomass processing and productivity.

The invention discloses an improved wheel coating process which specifically comprises the steps of: pretreating, drying, bottom powder spraying, curing, colored paint spraying, masking lacquer spraying, curing, machining as well as lathing and polishing, pretreating, drying, and clear powder or lacquer spraying. According to the invention, spraying and curing process parameters are optimized so that the machining and producing efficiency of finish-turning and polishing a wheel is increased by one time, and the appearance quality is remarkably improved.

Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydrochlorination step. Production of the less desirable pentachloropropane isomer, 1,1,2,3,3-pentachloropropane, is thus minimized. The present processes provide better reaction yield as compared to conventional processes that require dehydrochlorination of 1,1,2,3-tetrachloropropane prior to chlorinating the same. The present process can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, while limiting the production of waste water, thus providing further time and cost savings.

The present invention provides a technique for improving the productivity of a processing apparatus including a plurality of process chambers. There is provided a technique including a method for manufacturing a semiconductor device including: (a) transferring a last remaining substrate stored in an x^th storage unit of a plurality of storage units to an empty n^th chamber in an m^th processing unit of a plurality of processing units; and (b) transferring a first one of a plurality of substrates stored in an (x+1)^th storage unit of the plurality of storage units to one of chambers in an (m+1)^th processing unit of the plurality of processing units (where x, m and n are natural numbers).

The invention relates to a fully automatic automobile valve assembly machine, which includes a frame and a power distribution control box arranged in the frame, a turntable device is arranged above the frame, and the turntable device includes a turntable transmission motor fixed on the frame and cooperating with each other And the turntable, the turntable carrier is evenly arranged along the ring on the turntable, and the key block conveying device, the pipe jacking conveying device, the funnel installation device, the pressing device, the sealing Ring installation device and blanking device; the present invention extends the inner ring of the sealing ring through the sealing ring thimble, and expands the inner diameter of the sealing ring under the action of the sealing ring sleeve, and when the inner diameter of the sealing ring is larger than the sealing ring sleeve, the sealing ring slides upwards to the sealing ring casing, and then move to the top of the turntable carrier, the product casing cooperates with the jacking pipe, and the telescopic cylinder of the installation sleeve stretches out, driving the sealing ring installation sleeve to push the sealing ring into the groove of the jacking pipe, thereby greatly reducing The degree of wear of the sealing ring.

A method for process proximity correction may include obtaining a point spread function (PSF) from test patterns, the test patterns including an etching process performed thereon, generating a target layout with polygonal patterns, dividing the target layout into grid cells, generating a density map including long-range layout densities, each of the long-range layout densities being obtained from the polygonal patterns located within a corresponding one of the grid cells, performing a convolution of the long-range layout densities with the PSF to obtain long-range etch skews for the grid cells, and generating an etch bias model including short-range etch skews and the long-range etch skews, each of the short-range etch skews being obtained from a neighboring region of a target pattern selected from the polygonal patterns in each of the grid cells.

The invention discloses integrated milling equipment for a welding groove of a large irregular medium plate structure. The integrated milling equipment comprises a milling cutter system component, a fixed-depth profile modeling component, a milling cutter adjusting component, a normal-direction support component, a horizontal tracking component, a milling cutter box floating component, a 90-degree reversing component, a height raising component, a groove length displacement component and a milling cutter box body. Firstly, separated weldments are assembled into an integrated weldment; afterwards, the welding groove is integrally machined; finally, welding is performed; in this way, the machining productivity of the welding groove is increased to at least double. With regard to integrated machining of the welding groove, the welding groove is machined through one milling cutter at a time, and therefore the consistency and reliability of the size of welding seams of the welding groove integrally machined are higher; the integrated milling equipment is quite beneficial to assembly quality guarantee of the weldments and the dimensional accuracy of the welded product; the machining cost of the welding groove is lower; the dimensional consistency of the welding groove is quite high, and single-sided weld with double-sided formation can usually be achieved; in this way, the welding productivity is further increased, and the production cycle is further shortened.