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83results about How to "Improve bonding effect" patented technology

Method for achieving silicon through hole laminated chip interconnection

The invention discloses a method for achieving silicon through hole laminated chip interconnection. The method is used for achieving bonding among multiple layers of stacked silicon through hole chips through the following steps of punching, filling of conductive metal, preparing of a solder layer, clamping and centering, bonding and forming of finished products, wherein in the bonding process, a current joule heat auxiliary bonding technology is adopted for achieving silicon through hole three-dimensional interconnection welding spot bonding. According to the method for achieving three-dimensional packaging and bonding with the assistance of joule heat, under the low temperature and even the normal temperature, fast bonding of full intermetallic compound welding spots can be achieved, and heat damage to a chip is effectively reduced. Under the action of oriented currents, intermetallic compounds in the welding spots are grown preferably and rapidly in an oriented mode, high electrical conductivity and the good comprehensive mechanical property of the welding spots are achieved, and the reliability of the bonding spots is effectively improved. A parallel electrode resistance welding platform is adopted, a hot plate and an ultrasound device are easily integrated, the better bonding effect can be achieved, and the bonding time is shortened.
Owner:HARBIN INST OF TECH

Additive manufacturing sprayer for fiber reinforced composite material based on ultrasonic enhancing

The invention belongs to the field of additive manufacturing and relates to an additive manufacturing sprayer for a fiber reinforced composite material based on ultrasonic enhancing. The additive manufacturing sprayer for the fiber reinforced composite material based on ultrasonic enhancing comprises a sprayer body, an inner cavity, a heat conducting block, a cap, a fiber sprayer body, a fiber throat pipe, a polytetrafluoroethylene pipe I, a resin sprayer body, a resin throat pipe, a polytetrafluoroethylene pipe II, heating rods, temperature sensors and ultrasonic generators, the resin and fiber bonding effect can be improved, sprayer blockage is prevented, and the sprayer body can be conveniently cleaned. The sprayer body is detachably connected to the lower end of the inner cavity and is sleeved with the heat conducting block; the heating rods and the temperature sensors are arranged on the heat conducting block in a nested manner; the upper end of the inner cavity is detachably connected with the cap; the fiber throat pipe and the resin throat pipe are both detachably connected to through holes of the cap; the through hole connected with the resin throat pipe is further detachably connected with the resin sprayer body; the polytetrafluoroethylene pipe I is arranged in the fiber throat pipe in a sleeved manner; the lower end of the fiber throat pipe is detachably connected with the fiber sprayer body; the polytetrafluoroethylene pipe II is arranged in the resin throat pipe in a sleeved manner; and a cavity is formed after the inner cavity is connected with the cap.
Owner:HARBIN INST OF TECH

Decorative plastic surface vacuum-coating film preparation method

The invention discloses a method for preparing a decorative plastic surface vacuum-coating film having effects of electromagnetic radiation resistance, static conduction, hardness improvement, color adjustment, wear resistance and worm damage resistance. The method comprises the following steps of a, cleaning the plastic surface and carrying out flattening treatment, b, sealing the plastic surface by an amino airtight resin, c, putting the plastic into a cleaning tank containing diluted acid or diluted alkali, carrying out cleaning and carrying out drying, and d, carrying out film vacuum-coating on the dried plastic surface so that metal is deposited on the plastic surface and forms a continuous and uniform film containing the metal and metal oxides. The plastic product material obtained by the method has electromagnetic shielding effectiveness above 30dB in a frequency band of 30MHz to 1.5GHz and satisfies electromagnetic shielding and static conduction requirements. The method has simple and feasible processes, is environmentally friendly and efficient, can be used at a low temperature and is suitable for industrial large-scale production. Through the film, a plastic surface color can be adjusted according to demands and plastic surface hardening, corrosion resistance, wear resistance and good appearance are realized. The method greatly broadens plastic purposes, improves a plastic grade and realizes efficient plastic utilization.
Owner:WUXI HUIMING ELECTRONICS TECH

Decorative joint filling device for decoration and using method thereof

The invention relates to a decorative joint filling device for decoration and a using method thereof. The decorative joint filling device comprises a bottom plate, a driving motor and an electric pushing rod, wherein the bottom plate is provided with a circular ring, the driving motor, a hollow drum, the electric pushing rod, a mounting cylinder and a push handle; the circular ring is provided with an air filtration structure; the air filtration structure is provided with a hose; the hose is connected to the hollow drum; the hollow drum is provided with a rotating shaft, fan blades and an airinlet pipe; the right end of the air inlet pipe is arranged at the bottom of the bottom plate; the driving motor is connected to the rotating shaft; the rotating shaft is provided with a driving beltpulley; the driving belt pulley is provided with a belt; the belt is provided with a driven belt pulley; the driven belt pulley is provided with a rotating rod; the rotating rods are provided with a cutting disk and a rotating disk; the rotating disk is provided with bristles; the rotating disk is provided with a dust pushing structure; the dust pushing structure is provided with a dust accumulation structure; the mounting cylinder is provided with a decorative joint filler cylinder; the electric pushing rod is provided with an L-shaped pressing rod; the bottom plate is provided with a straight rod; and the straight rod is provided with a pressing ball. The decorative joint filling device for decoration and the using method thereof have the advantages of realizing the cleanliness in cut joints, avoiding the influence of dust in the cut joints on decorative joint filler, improving the bonding effect of the decorative joint filler and tiles, and ensuring the integrity of decorative jointfilling.
Owner:河南瑞隆建设有限公司

Metal powder coating and preparation method thereof

The invention relates to a metal powder coating and a preparation method thereof, belonging to the technical field of powder coating. The metal powder coating is prepared by bonding base powder and aluminum powder, wherein the mass of the aluminum powder is 1-3% of that of the base powder; according to the formula, the base powder is prepared from 60-70 parts of carboxyl terminated saturated polyester resin, 4-5 parts of triglycidyl isocyanurate, 10-30 parts of filler, 0.6-1 part of a leveling agent, 0.3-1 part of benzoin, 0.3-0.8 part of a luster-enhancing agent, 0.3-0.5 part of an antioxidant and 0.1-5 parts of common pigment. The preparation method comprises the steps of mixing the components of the base powder, carrying out melt extrusion, tabletting and crushing, grinding and screening to obtain the base powder; putting the base powder into a bonding machine, adding the aluminum powder, gelatinizing for 200-300s, and bonding to obtain the metal powder coating. The metal powder coating is proper in components and content ratio; the adopted preparation method is good in bonding effect and good in metal twinkling effect; the coating is excellent in chemical resistance and physical and mechanical properties, stable in product quality and good in construction performance.
Owner:HEBEI HANGUANG HEAVY IND

Copper-copper metal thermal pressing bonding method

The invention provides a copper-copper metal thermal pressing bonding method. The method at least comprises the following steps: first of all, providing a first wafer to be bonded and a second wafer to be bonded, wherein the first water comprises a first substrate, a first passivation layer and a first Ti-Cu alloy film, and the second wafer comprises a second substrate, a second passivation layer and a second Ti-Cu alloy film; then, performgin thermal pressing bonding on the surface of the first Ti-Cu alloy film of the first wafer and the surface of the second Ti-Cu alloy film of the second wafer; and finally, performing annealing processing in a protective gas to enable Ti atoms in the first Ti-Cu alloy film to diffuse towards the surface of the first passivation layer and Ti atoms in the second Ti-Cu alloy film to diffuse towards the surface of the second passivation layer so as to finally form Ti adhesive/barrier layers on the surfaces of the first passivation layer and the second passivation layer, and Cu atoms diffusing towards a bonding surface so as to realize bonding. According to the method provided by the invention, before the bonding, what is needed is only to respectively perform co-sputtering on the two substrates for once, such that the sputtering frequency is reduced by half, the process is relatively simple, the reliability is good, the technical cost is quite low, and finally, the Ti adhesive/barrier layer are formed through diffusion after the annealing processing, and the copper bonding effect is better.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Hand bag

The invention discloses a hand bag which comprises a bag body with a bag opening, a hand lifting rope, a first adhesive layer, a sticker, a second adhesive layer and release paper. Two ends of the hand lifting rope are respectively provided with a bonding part with a flat structure, the middle section of the hand lifting rope is a handle part, the sticker is arranged near the bag opening, the outer side surface of the sticker and the bonding part of the hand lifting rope are adhered to the corresponding inner side surface of the bag body through a first adhesive layer, the inner side surface of the sticker is coated with a second adhesive layer, and the second adhesive layer is covered with release paper. According to the hand bag, the bonding parts at the two ends of the hand lifting ropeare designed to be flat; the stability of the contact face is good, operation is convenient during bonding, the sticker and the bonding part can be directly bonded to the corresponding inner side face of the bag body together through the first bonding layer, the outer contour of the bonding part can be completely wrapped without a too thick bonding layer, and therefore the good bonding effect isachieved. Compared with the prior art, a layer of sticker and a layer of adhesive layer are omitted, so that the material cost is saved, and meanwhile, the production process is simplified.
Owner:XIAMEN JIHONG TECH CO LTD
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