33results about How to "Inhibition of thinning" patented technology

The present invention provides an etching liquid for copper or a copper alloy capable of producing an electronic substrate in which side etches are reduced, the narrowing of the upper part of copper wiring is suppressed, and short circuits are not generated, and to provide a method for producing an electronic substrate using the same. In the method for producing an electronic substrate, a copper layer (2a) formed on an electrically insulated base material (1) is etched so as to be a prescribed shape to form copper wiring (2c). After the main etching, copper (A) to be removed remaining in the cuff part of copper wiring (2b) is removed with an aqueous solution comprising (a) an oxidizer for copper by 1 to 50 g / L, (b) at least one kind of acid selected from the group consisting of hydrochloric acid by 1 to 400g / L and organic acid by 1 to 200 g / L, and (c) at least one kind of polymer selected from the group consisting of polyalkylene glycol and a copolymer of polyamine and polyalkylene glycol by 0.01 to 50 g / L.

The invention discloses a semiconductor device and method for fabricating the same. The semiconductor device has a structure that can eliminate dependency of coating film bottom. The semiconductor device in an active region (100) has a gate insulating film (102), a gate electrode (103), a sidewall (105), a source drain region (106) and a silicide region (107). The semiconductor device also has an underlying insulating film (108) formed over the active region (100) using atomic layer deposition so as to cover the gate electrode (103), the sidewall (105) and the silicide region (107); and a contact liner film (109) formed on the underlying insulating film using plasma CVD and made of a stress insulating film for applying a tensile or compressive stress in a gate length direction in a channel region.

The invention discloses a front and back drawing forming die and method of a double-layer cylindrical part. The lower end of the mold has a punch and a die, the die has a deep drawing groove, the upper end of the die has a back pressure punch and a convex ring, and the convex ring is covered with a blank holder. When forming positive and negative deep drawing, the plate is placed on the mold. At the beginning, the upper end of the punch is flush with the bottom end of the blank holder, and the plate is placed between the punch and the convex ring. The convex ring is stationary, and the bottom punch moves upward. The drawn sheet flows into the convex ring, and the sheet gradually covers the punch under the action of the back pressure of the back pressure punch, the downward pressure of the convex ring and the upward pressure of the punch. When the punch rises to the specified stroke, it begins to fall. When the convex ring goes down to draw the sheet, under the pressure of each part in the mold, the thickness of the sheet covering the punch part remains basically unchanged, while the sheet below the blank holder continues to be fed until the sheet is attached to the die, and the forming is terminated . The invention saves molds, shortens the processing procedure of workpieces and improves production efficiency.

The invention discloses a workpiece electromagnetic incremental forming device provided with profile-followed arrangement coils, and further discloses a workpiece electromagnetic incremental forming method. The workpiece electromagnetic incremental forming device comprises a supporting frame, a mould, a plate, plate clamping assemblies for fixedly clamping the plate, and a driving piece for driving the mould to move so as to conduct stretch forming on the plate, and further comprises the multiple profile-followed arrangement coils. The plate clamping assemblies are arranged on the supporting frame; the plate is fixedly clamped between the plate clamping assemblies; the driving piece is connected with the mould; the profile-followed arrangement coils are arranged on the periphery of the surface of the plate subjected to stretch forming by the mould in a surrounding mode; and all the profile-followed arrangement coils are arranged on layers of different heights above the plate correspondingly. The workpiece electromagnetic incremental forming method comprises the steps of plate fixing, stretch forming of the plate, electromagnetic forming through the profile-followed arrangement coils and the like, and the plate and the mould are attached by repeatedly executing plate stretch forming and electromagnetic forming. The workpiece electromagnetic incremental forming device and methodhave the advantages of being high in forming precision, good in forming quality, high in efficiency, high in utilization rate of discharge energy, low in equipment energy demand and the like.

The invention discloses an egg coating preservative which takes oxyethlene higher aliphatic alcohol as a main coating forming material and takes absolute ethyl alcohol, polysorbate 80, glycerol and palm oil as auxiliary materials. The invention also discloses a preparation method of the egg coating preservative. The egg coating preservative has the characteristics of being good in coating forming property and moisture retention, ensuring that the appearance of a coated product is beautiful, and the like, can effectively prevent the invasion of microorganisms and the moisture loss of the egg product, can adjust gas compositions to restrain an egg white thinning effect, has a good preservation effect, and has effects which are obviously superior to those of common egg coating preservatives.

The present invention relates to an apparatus for preparing the following foods (production) continuously, the foods is made by packaging inner material composed of foods such as stuffing or fruit jam etc. by tegmen material composed of foods blank such as bread etc. A blank pressing component is formed integratedly on the peripheral of a nozzle component for extruding inner material, the peripheral part of the tegmen material locating on the upper surface of a carrying component with hatch is clipped between the blank pressing component and the carrying component, and the upper opening of the bowl-shaped tegmen material is closed by the nozzle component and the blank pressing component, so as to prevent the inner material from leaking from the upper opening by maintaining the clipping state when ejecting the inner material into the inner of the tegmen material, and to prevent inner material from leaking to manufacture no good production when sealing the peripheral of the tegmen material. In addition, due to prevent inner material from polluting food manufacture device, it is able to prepare foods continuously without stop the running of the device.

Provided is a lead acid storage battery wherein the life time performance is significantly improved, reduction of liquid is suppressed, corrosion of the negative electrode ear is suppressed, and the amount of free carbon in the electrolytic solution is small. In the lead acid storage battery, positive and negative electrode grids are comprised of a Pb-Ca-Sn alloy which does not substantially contain Sb, positive and negative electrode straps are comprised of a lead alloy containing 5,000 mass ppm or less of Sb (including cases of substantially 0 mass ppm), and the negative electrode active material is doped with carbon that uses expanded graphite and / or whisker-like carbon in a part thereof. The total additive amount of the expanded graphite and / or the whisker-like carbon is preferably 0.5-3.0 mass% with respect to the mass of the negative electrode active material.

Disclosed is a process for preparing a diaryl oxalate which comprises the step of transesterifying a dialkyl oxalate or / and an alkylaryl oxalate with an aryl alcohol in the presence of a tetra(aryloxy)titanium as a catalyst, wherein the tetra(aryloxy)titanium is fed into a reaction system of the transesterification as an aryl alcohol solution of the tetra(aryloxy)titanium which is prepared by reacting a tetraalkoxy titanium and an excess amount of the aryl alcohol and removing a by-producing alkyl alcohol.

The invention discloses an electromagnetic incremental forming method. The electromagnetic incremental forming method adopts a hierarchical manner to realize layer-by-layer forming from the bottom up; only a local position is formed during each forming, so that a die fittingness range is expanded continually till the forming of a whole workpiece is completed; then shaping is realized to improve the forming quality of a sheet; finally, a housing part which is uniform in thickness distribution and good in surface quality is obtained. Shaping can be realized through an orthotic coil or the orthotic coil and a magnet collector. According to the method, after hierarchical forming, the fluidity of sheets is improved, and a local thinning phenomenon is prevented; meanwhile, a sheet waving phenomenon, which is caused by instability wrinkling, in an electromagnetic incremental forming process can be prevented, so that the electromagnetic incremental forming precision is improved; as the fluidity of the sheets is improved after hierarchical forming and the local thinning phenomenon is prevented, the forming of housing parts with uniform wall thickness is facilitated.