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45results about How to "Avoid misregistration" patented technology

Method for manufacturing microwave power device by using double level polysilicon device structure

The invention discloses a method for manufacturing a microwave power device by using a double level polysilicon device structure. The method of the invention adopts a deep groove isolation technique and inhomogeneous thermal design, realizes the acinaceous cellular structure, adopts outer base region composite plate to carry out photoetching, vertically etches a monox dielectric layer and outer base polycrystalline silicon to obtain the outer base region window of the ratio change of the length and the like, and forms a compound L-shaped side wall capable of adjusting the length of an emitting electrode by means of autocollimation in the outer base region window. In the invention, the emitting electrode polycrystalline silicon composite plate is adopted to carry out photoetching, the emitting electrode polycrystalline silicon and the dielectric layer are vertically etched by utilizing autocollimation, the selective side wall protection technology is combined, under the scale of the deep submicron, and the polycrystalline silicon refractory metallic silicide with low film resistivity is realized by means of autocollimation, thereby avoiding the short circuit connection of two types of polycrystalline silicon leads, reducing the restriction of parasitic components of the interconnected leads on improving the characters of the microwave power device under the graph scale of submicron and deep submicron, thereby improving the overall performance of the microwave power device and the microwave performance thereof.
Owner:WUXI JINGKAI TECH

Mr imaging using shared information among images with different contrast

A typical clinical MR protocol is composed of several sets of scans to acquired images with different contrast, such as T1, T2 and DWI. Currently, the acquisition and reconstruction of these images are processed individually. The proposed method treats the optimization of all acquisitions and reconstructions as one single procedure for faster and more robust MRI. The theory behind this concept is that the information such as B0, B1- field, optimized acquisition trajectory, reconstruction parameters, etc., can be shared among all scans for different contrasts since the same subject is scanned in the same system using the same RF coil.; A method of magnetic resonance imaging includes performing a first magnetic 10 resonance scan sequence which saves a data store, and performing a second magnetic resonance scan sequence which uses a data store from the first magnetic resonance scan sequence. A magnet (10) generates a B0 field in an examination region (12), a gradient coil system (14, 22) creates magnetic gradients in the examination region, and an RF system (16, 18, 20) induces resonance in and receives resonance signals from a subject in the 1 examination region. One or more processors (30) are programmed to perform a magnetic resonance pre-scan sequence to generate pre-scan information, perform a first sequence to generate first sequence data, refine the pre-scan information with the first sequence data, perform a second imaging sequence to generate second sequence data.; Further, the second sequence data is either reconstructed using the refined pre-scan information or performed using the refined pre-scan sequence information.
Owner:KONINKLJIJKE PHILIPS NV

Satellite-type flexographic printing machine

The invention discloses a satellite-type flexographic printing machine. The printing machine comprises an unrolling unit, an unrolling correcting unit, a traction unit, a printing station, a baking oven, a rolling correcting unit and a rolling unit and also comprises an overturning correcting frame; a printing material enters the overturning correcting frame after being subjected to front printing and drying and enters the printing station again so as to be subjected to back printing after being overturned by the overturning correcting frame. By using the satellite-type flexographic printing machine, automatic double-side printing on one satellite-type flexographic printing machine is realized, the problem that halt and secondary starting are required during original double-side printing on one equipment is solved, therefore, the problems of register difference and printing tailings caused in the speed increasing and reducing processes for halt and secondary starting are also avoided, and the production efficiency and product qualification ratio are greatly increased; and meanwhile, compared with printing by using two equipment, the satellite-type flexographic printing machine has the advantages that the amount of the required operating personnel is smaller, and therefore, the labor cost can be reduced while the equipment purchasing cost is reduced.
Owner:ZHONGSHAN SOTECH PRINTING MACHINERY CO LTD

Manufacturing method for groove grid super junction MOSFET

ActiveCN105957897AEliminate misregistration problemsPrevent misregistrationSemiconductor/solid-state device manufacturingSemiconductor devicesMOSFETConductive materials
The invention discloses a manufacturing method for a groove grid super junction MOSFET. The manufacturing method comprises the steps of forming a hard mask layer; photoetching the hard mask layer to open a groove forming area; etching for the first time to form a top groove; removing a protection layer at the bottom of the top groove, and reserving the protection layer on the side surface of the top groove; etching for the second time to form a bottom groove; filling the bottom groove with a P-type epitaxial layer to form a bottom epitaxial filled layer; filling the top of the bottom epitaxial filled layer with a P-type epitaxial layer to form a top epitaxial filled layer; removing the hard mask layer and the protection layer and thus forming a grid groove at the periphery of the top of a P-shaped column; and forming a grid dielectric layer in the grid groove and filling a grid conductive material in the grid groove. According to the manufacturing method, the registration deviation between the groove grid and the P-type column can be avoided, the technological stability can be improved and thereby the threshold voltage and breakover voltage drop of the device are more uniform, the size of the super junction unit can be smaller, and the capability of resisting unclamped inductive switching impact can be greatly enhanced.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Method for manufacturing microwave power device by using double level polysilicon device structure

The invention discloses a method for manufacturing a microwave power device by using a double level polysilicon device structure. The method of the invention adopts a deep groove isolation technique and inhomogeneous thermal design, realizes the acinaceous cellular structure, adopts outer base region composite plate to carry out photoetching, vertically etches a monox dielectric layer and outer base polycrystalline silicon to obtain the outer base region window of the ratio change of the length and the like, and forms a compound L-shaped side wall capable of adjusting the length of an emitting electrode by means of autocollimation in the outer base region window. In the invention, the emitting electrode polycrystalline silicon composite plate is adopted to carry out photoetching, the emitting electrode polycrystalline silicon and the dielectric layer are vertically etched by utilizing autocollimation, the selective side wall protection technology is combined, under the scale of the deep submicron, and the polycrystalline silicon refractory metallic silicide with low film resistivity is realized by means of autocollimation, thereby avoiding the short circuit connection of two typesof polycrystalline silicon leads, reducing the restriction of parasitic components of the interconnected leads on improving the characters of the microwave power device under the graph scale of submicron and deep submicron, thereby improving the overall performance of the microwave power device and the microwave performance thereof.
Owner:WUXI JINGKAI TECH
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