33 results about "Substrate channeling" patented technology

A structure, and method of forming and cooling the structure. The structure may include a substrate (e.g., a semiconductor chip) having N continuous substrate channels and an interposer having N continuous interposer channels (N≧2). The N interposer channels are coupled to the N substrate channels to form M continuous loops (1≦M≦N). The M loops may transfer heat from a heat source within the substrate to the interposer and then to a heat sink thermally coupled to the interposer. The structure may include an interposer having a thermally conductive enclosure surrounding a cavity. The cavity contains a thermally conductive foam material (e.g., graphite foam). The foam material contains a serpentine channel having contiguously connected channel segments. The serpentine channel may transfer heat from a heat source within a substrate (e.g., a semiconductor chip) to the interposer and then to a heat sink thermally coupled to the interposer.

Methods of aligning single walled carbon nanotube structures into selected orientations for a variety of different applications are achieved by initially dispersing the nanotube structures in aqueous solutions utilizing a suitable dispersal agent. The dispersal agent coats each individual nanotube structure in solution. The dispersal agent may be substituted with a suitable functional group that reacts with a corresponding binding site. Dispersed nanotube structures coated with substituted dispersal agents are exposed to a selected array of binding sites such that the nanotubes align with the binding sites due to the binding of the substituted functional groups with such binding sites. Alternatively, crystalline nanotube material is formed upon deposition of dispersed nanotube structures within solution into channels disposed on the surface of the substrate. Combining dispersal agent chemical modification techniques with deposition of the nanotubes into substrate channels is also utilized to produce useful structures.

A micro-fluid ejection head has fluid ejection elements formed as thin film layers on a substrate. Fluid flow features on the substrate channel fluid from a fluid source to ejection chambers surrounding the ejection elements. A pump on the substrate circulates the fluid from the source to the ejection chambers and back again to the source. The flow refreshes the fluid in the chambers to minimize deleterious effects of evaporation. A controller coordinates the flow rate of the pump and other variables to optimize system productivity. Other embodiments contemplate pump locations, pump types, pump enumeration, and fluidic features, such as pathways, diffusers, chokes and dimensions, to name a few.

The invention relates to a micro-device for non-invasive and selective separation and extraction of particles in polydispersed suspensions by means of the strategic use of ultrasounds, laminar flow and standing wave effects in a channel produced in a chip by means of microtechnology. Said device is a resonant multi-layer system comprising a modified ''lambda quarter wavelength'' treatment channel, which enables the particles to be channelled and separated in a flow inside the substrate channel without touching the walls of the device, in order to avoid problems of adherence. Said micro-device can be used in the field of biomedicine and/or biotechnology for the separation and concentration of cells, preferably human cells, that can be used for investigative and medical methods for diagnosis and treatment.

The invention discloses a micro-channel heat exchanger for drop-shaped pin fins. A cooling working medium inlet of a channel is connected with the inlet end of the channel; the outlet end of the channel is connected with a cooling working medium outlet; a cooling silicon substrate channel is formed between the inlet end and the outlet end of the channel; the drop-shaped pin fins are placed inside the cooling silicon substrate channel; a glass cover plate is adhered to the top end of the structure for heat insulation. The cooling silicon substrate channel is etched into a micro channel for the drop-shaped pin fins. According to the micro-channel heat exchanger, without adding an additional drive or control device, the aim of enhancing heat exchange can be achieved by increasing a heat exchange area through the simple drop-shaped pin fin structure and enhancing the mixing of cold fluid and hot fluid.

A microfabricated silicon chip with a separation material, such as in situ prepared porous polymer monoliths in its microchannels is disclosed. The polymer monoliths are liquid-permeable and serve as microcolumns for liquid chromatography, which are prepared by in situ radical polymerization of a mixture containing vinyl monomers and solvents (porogen) in the microchannels. A method and system are disclosed to generate one or more electrospray plumes from one or more nozzles that provide an ion intensity as measured by a mass spectrometer that is approximately proportional to the number of electrospray plumes formed for analyses contained within the fluid. A plurality of electrospray devices can be used in the form of an array of miniaturized separate electrospray devices for the purpose of generating multiple electrospray plumes from multiple nozzles for the same fluid for analysis. This invention dramatically increases the sensitivity of microchip electrospray devices compared to prior disclosed systems and methods. The silicon chip having the packed microchannels disclosed herein finds application in coupling with mass spectrometry for sample analysis. Also disclosed is a separation block having multiple through-substrate channels filled with a separation material such as polymer monolith which can be stacked in multiple blocks for sequential two-dimensional chromatographic separation and integrated with the electrospray device.

The invention relates to a sealing process for a non-phase change inhibition heat transfer substrate channel opening. The sealing process includes: using mechanical force or other external force to compress the compression area of the grid working medium channel on the upstream of a filling opening in a non-phase change inhibition heat transfer substrate; adjusting the welding head of a laser welding machine to reach a preset welding part, starting a welding program, and performing straight-line-shaped weld joint welding on the upstream of the filling opening to allow the surface layer and the inner layer of a grid working medium channel to be fused together so as to complete the sealing of the grid working medium channel opening. The sealing process has the advantages that the process is simple and high in welding efficiency, finished products are attractive in appearance and reliable in sealing, and automatic production can be achieved.

The invention is suitable for a semiconductor device and provides a ring-gate structure field effect transistor, which comprises a substrate, a silicon dioxide layer deposited on the substrate, and grid, source and drain electrodes deposited on the silicon dioxide layer. The grid electrode comprises an active layer, an insulation layer wrapping around the active layer and a metal layer wrapping around the insulation layer, wherein the insulation layer is made of a high-dielectric-constant dielectric material. The ring-gate structure field effect transistor, by adopting the high-dielectric-constant dielectric material to serve as the insulation layer, has a good insulation property, can produce a higher field effect between the grid electrode and a substrate channel, can reduce transistor electric leakage amount and reduce device power consumption and heating, and enables the size of the transistor to be further reduced.

The invention discloses a method for transforming bacillus subtilis FMMs and application thereof, and belongs to the technical field of genetic engineering. According to the method, the ratio of FMMson a plasma membrane is remarkably increased by strengthening the sterol analogue precursor synthetase, namely squalene synthase and scaffold protein. Compared with a control strain BSGN6-AY, the recombinant bacillus subtilis BSGFMM1-AY constructed through the method can immobilize more pathway enzyme required by N-acetylglucosamine in FMMs to form a substrate channel, and the catalytic efficiencyof the enzyme is remarkably improved. In a shake flask fermentation process of a composite culture medium, the GlcNAc titer of the control strain BSGN6-AY is only 2.84 g/L, and the GlcNAc titer of the BSGFMM1-AY is increased to 8.86 g/L. The construction method of the recombinant bacillus subtilis is simple, high in universality and convenient to use, and has good application prospects.

The invention provides a split-gate SONOS (Semiconductor Oxide Nitride Oxide Semiconductor) memory device. The split-gate SONOS memory device comprises a gate oxide layer and a nitrogen oxide layer which are formed on a substrate, wherein a selection tube polysilicon gate, a top end oxide layer and an isolation layer are arranged on the gate oxide layer; a memory tube polysilicon gate is arrangedon the nitrogen oxide layer; the nitrogen oxide layer and one side of the memory tube polysilicon gate are close to the isolation layer; a memory tube P-type well is positioned below the selection tube polysilicon gate and the memory tube polysilicon gate; the substrate channel between the source end of the selection tube and the selection tube polysilicon gate is provided with a P-type boron injection region; and the channel of the P-type substrate below the memory tube polysilicon gate is provided with an N-type arsenic injection region. According to the invention, a single-side boron injection region of the selection tube and a source-end single-side arsenic or antimony injection region are formed, and boron in the boron injection region is diffused into a channel of the selection tubeto realize threshold voltage adjustment of the selection tube; an N-type arsenic injection region is formed through the threshold voltage adjustment of the memory tube; and finally, threshold voltageadjustment of the selection tube and threshold voltage adjustment of the memory tube device are not influenced mutually, the device performance is improved, and the manufacturing cost is reduced.

The invention provides an image pick-up module set, a molded circuit board assembly thereof, a molded circuit board assembly semi-finished product, a manufacturing method and an electronic device withthe image pick-up module set. The image pick-up module set comprises at least one optical lens, at least one back molded part, at least one photosensitive element, and a circuit board; the circuit board comprises at least one substrate and at least one electronic component that is conductively connected to the substrate; a part of the non-photosensitive region of the photosensitive element is mounted on the substrate back surface of the substrate; the photosensitive region and the other part of the non-photosensitive region of the photosensitive element are corresponding to the substrate channel of the substrate; the back molded part is integrally bonded to at least a portion of the substrate back surface of the substrate; and the optical lens is held in the photosensitive path of the photosensitive element.

The invention provides a method for artificially constructing a chitin corpuscle multienzyme complex scoford-chiC-chiA-sg and an application. According to the multienzyme complex, interacting proteinpairs existing in cellosomes from the nature are used for artificially fusing to express cohesins in the cellosomes to construct a protein scaffold, and anchoring protein is fused and expressed on corresponding chitin incision enzymes, chitin excision enzymes and N-acetylglucosaminidase, and then extracellular self-assembly is carried out on the protein scaffold and the chitinase to obtain a chitinase multienzyme complex; and then the multienzyme complex is applied to degradation of chitin to prepare N-acetylglucosamine. The multienzyme complex not only realizes extracellular self-assembly offree chitinase, but also fixes the distance between enzymes, improves the synergistic effect of enzyme elements in a system and generates a substrate channel, so that the degradation efficiency of thechitin is improved, a single monosaccharide product is obtained, and the cost of production and subsequent separation is reduced.

The invention provides a FinFET structure and a manufacture method thereof. The FinFET structure comprises a substrate, a first fin, a second fin, a grid lamination layer, a source region, a drain region, sidewalls and a substrate channel region, wherein the first and second fins parallel with each other are placed on the substrate; the grid lamination layer covers the substrate and part of the sidewalls of the first and second fins; the source region is placed in the area, not covered by the grid lamination layer, of the first fin; the drain region, is placed in the area, not covered by the grid lamination layer, of the second fin; the sidewalls are placed at the two sides of the first fin and the two sides of the second fin respectively and on the grid lamination layer to isolate the source region, the drain region and the grid lamination layer from one another; and the substrate channel region is placed in the substrate in an area close to the upper surface. According to the invention, the new device structure is provided on the basis of a present FinFET technology, and the grid length of the device is not limited by the footprint size, and the problem caused by the short channel effects is effectively solved.

The invention relates to the field of gene engineering, in particular to a corynebacterium glutamicum sourced ketolytic acid hydroxymethyltransferase mutant, a coding gene thereof and application of the mutant in preparation of ketopantoic acid and D-pantothenic acid. By means of a computer simulation technology, key amino acid sites around a substrate channel and an active pocket are predicted and mutated, and a series of mutants are obtained. The ketolytic acid hydroxymethyltransferase mutant is obtained by carrying out site-specific mutagenesis on the 18th site, the 20th site, the 21st site, the 24th site, the 25th site, the 26th site, the 27th site and the 49th site of an amino acid sequence as shown in SEQ ID NO: 1. In the finally obtained ketolytic acid hydroxymethyltransferase mutant, the enzyme activity is obviously changed, and the catalytic activity and substrate tolerance of the mutant are greatly improved when alpha-ketoisovaleric acid is catalyzed to generate ketopantoic acid compared with a wild enzyme.

The invention provides an array image pick-up module set, a molded circuit board assembly thereof, a manufacturing method and an electronic device. The image pick-up module set comprises at least oneback molded part, at least two optical lenses, at least two photosensitive elements, and at least one circuit board; the circuit board comprises at least one substrate and at least one electronic component that is conductively connected to the substrate; a part of the non-photosensitive region of each photosensitive element is conductively connected with the substrate at the substrate back surfaceof the substrate, so that the photosensitive region and the other part of the non-photosensitive region of each photosensitive element are corresponding to the substrate channel of the substrate; theback molded part is integrally bonded to at least a portion of the substrate back surface of the substrate; and each optical lens is arranged in the photosensitive path of each photosensitive element.