395results about How to "Improve the bonding force between layers" patented technology

A thermally sprayed member or an electrode includes a basic material, a thermally sprayed film formed on the surface of the basic material, the thermally sprayed film being made of an insulating ceramic and a metallic intermediate layer provided between the basic material and the thermally sprayed film for increasing a bonding force therebetween, wherein the thermally sprayed film side of the member is exposed to a high frequency plasma atmosphere and the electrode is intended to form a high frequency plasma on the side of the thermally sprayed film. The basic material includes a base portion made of a conductive material and a dielectric portion provided to include a part of a surface of the basic material. Further, the intermediate layer is comprised of a plurality of island-shaped parts isolated from each other.

Provided is an image sensor. The image sensor can include a readout circuitry on a first substrate. An interlayer dielectric is formed on the first substrate, and comprises a lower line therein. A crystalline semiconductor layer is bonded to the interlayer dielectric. A photodiode can be formed in the crystalline semiconductor layer, and comprises a first impurity region and a second impurity region. A via hole can be formed passing through the crystalline semiconductor layer and the interlayer dielectric to expose the lower line. A plug is formed inside the first via hole to connect with only the lower line and the first impurity region. A device isolation region can be formed in the crystalline semiconductor layer to separate the photodiode according to unit pixel.

A small and highly reliable acoustic wave device and a method for production of the same will be provided. The acoustic wave device has a piezoelectric substrate 1; a SAW element 2 on one main surface of the piezoelectric substrate 1; an outside connection-use conductor 3 formed on the one main surface of the piezoelectric substrate 1 and electrically connected to the SAW element 2; a columnar electrode 10 on the outside connection-use conductor 3; and a protective cover 6 defining inner walls of a vibration space 7 for vibration of the SAW element 2 and planarly surrounding a side surface of the columnar electrode 10.

A flexible display comprises a flexible substrate made of plastic material, a display element on a first surface of the flexible substrate, and a surface residual film containing at least one of a metal material or a metal oxide material. The surface residual film is bonded to at least a part of a second surface of the flexible substrate. The second surface is opposed to the first surface. A method for manufacturing a flexible display comprises preparing a glass substrate, forming adhesive material film on the glass substrate, the adhesive material film being made of at least one of a metal material or a metal oxide material, and forming a flexible substrate from plastic material on the adhesive material film.

Provided is a light source that has high reliability and hardly causes conductivity failure between a light emitting device and a conductive land. In an LED light source of the present invention, an LED bare chip is mounted to conductive lands of a substrate, using bumps (55a, 55b). The LED bare chip (D65) is provided with a p-electrode (Lp) and an n-electrode (Ln) on a rear surface. The p-electrode (Lp) is larger in area than the n-electrode (Ln). The p-electrode (Lp) is bonded to a corresponding conductive land via four bumps (55a), whereas the n-electrode (Ln) is bonded to a corresponding conductive land via one bump (55b). A bonded area (Sn) between the n-electrode (Ln) and the bump (55b) is larger than a bonded area (Sp) between the p-electrode (Lp) and one of the bumps (55a).

In a light emitting device with a heat-release metallic part made of metal and a packaging ceramic part made of ceramics bonded to the metallic part via an adhesive, the adhesive is a hot melt that melts with heat at a melting temperature higher than a given temperature and has flexibility when it has been hardened and formed a bond, and the ceramic part has pores at least in a given bonding surface region so that the hot melt is impregnated into the pores.

A system for displaying images including a display panel is provided. The display panel has a display area and a peripheral area. The display panel includes a metal layer disposed on a first substrate. A patterned planarization layer is disposed on the metal layer, having at least one opening corresponding to the peripheral area, wherein a portion of the metal layer is exposed through the opening. A second substrate is disposed opposite to the first substrate. A seal is disposed at the peripheral area and between the first and the second substrates, wherein the seal covers the metal layer through the opening of the patterned planarization layer.

There is disclosed a method for producing a single crystal silicon solar cell comprising the steps of: implanting hydrogen ions or rare gas ions into a single crystal silicon substrate through an ion implanting surface thereof to form an ion implanted layer in the single crystal silicon substrate; forming a transparent electroconductive film on a surface of a transparent insulator substrate; conducting a surface activating treatment for the ion implanting surface of the single crystal silicon substrate and/or a surface of the transparent electroconductive film on the transparent insulator substrate; bonding the ion implanting surface of the single crystal silicon substrate and the surface of the transparent electroconductive film on the transparent insulator substrate to each other; applying an impact to the ion implanted layer to mechanically delaminate the single crystal silicon substrate thereat to leave a single crystal silicon layer; and forming a p-n junction in the single crystal silicon layer. There can be provided a single crystal silicon solar cell where a light conversion layer is provided as a thin-film for effective utilization of silicon as a starting material of the silicon solar cell, which single crystal silicon solar cell is excellent in conversion characteristics and is less in degradation due to light irradiation, and which single crystal silicon solar cell is provided as a see-through type solar cell that is usable as a natural lighting window material of a house or the like.

In connection with a bump of a semiconductor device and a manufacturing method thereof, a groove is formed in a bump pad region of a semiconductor substrate. An under bump metal layer is then formed in the groove, and a lower end portion of the bump fills the groove on the under bump metal layer.

The invention discloses a three-dimensional printing method. According to the main process of the three-dimensional printing method, fused raw materials are placed in a forming area adopted by a three-dimensional printing device, the fused raw materials are accumulated and converted into a printed body in the forming area, and the fused raw materials are accumulated on the basis of the printed body until an object to be printed is formed. The three-dimensional printing method is characterized in that in the process of accumulating the fused raw materials, the portion, where the fused raw materials are to be accumulated, of the printed body is fused or softened through an electromagnetic induction heating manner, and/or the portion, where the fused raw materials are being accumulated, of the printed body is fused or softened. The three-dimensional printing method has the beneficial effects that the interlayer binding force of the printed body is high, and the structural strength of the printed body is high; a detachable auxiliary supporting body can be generated synchronously so that printing of a complicated structure can be achieved; an equipment structure is simple; a large-sized component can be printed; the three-dimensional printing method is suitable for multiple types of materials, and three-dimensional printing of electrically-conducive materials such as metal, metal ceramics and plastics mixed metal power can be achieved; cost is low; and the three-dimensional printing method has the substantial improvement.

The invention discloses a production method of a high-density laminated printed circuit board of a high-frequency material. The production method comprises the following steps of: (1) drilling: drilling blind holes for interlaminar electrical connection on a layer or a plurality of layers of daughter boards; (2) screen printing solder resist: coating solder resist printing ink on the surface of outer copper foil of the layer or the plurality of layers of daughter boards with the blind holes, ensuring that the blind holes are filled with the solder resist printing ink, and exposing and developing to solidify the solder resist printing ink; (3) laminating: laminating the layer or the plurality of layers of daughter boards having the solder resist printing ink with other daughter boards into a whole by high-frequency prepregs; and (4) taking off the solder resist printing ink. The production method provided by the invention can commendably solve the problem that glue is difficult to remove when the high-density laminated printed circuit board of the high-frequency material is laminated and has the advantages of simpleness and safety of operation and low cost. In addition, the production method can play a role of glue resistance so that resin can not overflow to the board surface and is kept on interlamination, thereby effectively strengthening interlaminar bonding force and improving reliability of a product.

A semiconductor package includes a package board that includes an circuit pattern and a plurality of contact pads electrically connected to the circuit pattern; a semiconductor chip having a plurality of chip pads; and a bump structure including a plurality of connecting bumps electrically connected with the semiconductor chip and the circuit pattern and a plurality of gap adjusting bumps bonded to the semiconductor chip and shaped into a slender bar between the semiconductor chip and the package board, the gap adjusting bumps spacing the semiconductor chip from the package board such that a gap space, S, is maintained between the package board and the semiconductor chip. A method of fabrication and a memory unit are disclosed.

A conductive bump structure of a circuit board and a fabrication method thereof are proposed. The circuit board is formed with conductive circuits on a surface thereof An insulating protection layer having a plurality of openings to expose terminals of the conductive circuits is formed on the circuit board. A conductive layer is formed on the insulating protection layer and in the openings thereof. A patterned resist layer is formed on the conductive layer and has a plurality of openings corresponding in position to the terminals of the conductive circuits. Conductive bumps are formed by electroplating in the openings of the resist layer. Then, the resist layer and the conductive layer underneath the resist layer are removed. An adhesive layer is formed on the conductive bumps and completely covers exposed surfaces of the conductive bumps respectively. The circuit board can be electrically connected to electronic elements through the conductive bumps.

Provided is a method of manufacturing a ceramic multi-layer circuit substrate. A plurality of ceramic blocks, in each of which one or more ceramic green sheets having via-electrodes are layered one atop the other, are formed and are then fired. The fired ceramic blocks are aligned with each other. One or more bonding green sheets each having bonding electrodes in positions corresponding to the via-electrodes of the ceramic blocks are prepared. Each of the bonding green sheets is interposed between a pair of the ceramic blocks opposing each other. The ceramic blocks and the bonding green sheets are bonded and are then fired.

A slurry composition for electrode comprising a binder, an active material, and a liquid medium, characterized in that the binder comprises a polymer (X) comprising 60 to 95 mole % of repeating units derived from acrylonitrile or methacrylonitrile and 5 to 30 mole % of repeating units derived from at least one kind of a monomer selected from 1-olefins and compounds represented by the following general formula (1): CH₂═CR¹—COOR² wherein R¹ represents a hydrogen atom or a methyl group and R² represents an alkyl group; and the liquid medium is capable of dissolving the polymer (X). The slurry composition allows the manufacture of a lithium ion secondary battery having enhanced capacity and good charge-discharge cycle characteristics and good charge-discharge rate characteristics.

The present invention relates to a wear-resistant and mildewproof non-stick pan coating. The coating comprises a bottom layer and a surface layer; The bottom layer consists of the following materials in parts by weight: polyimide resin, modified polyvinylidene fluoride resin, a high-temperature-resistant pigment filler, modified polyorganosiloxane polymer, polyetheretherketone PEEK and graphite. The surface layer consists of the following materials in parts by weight: polytetrafluoroethylene resin, phenylene sulfide, acrylate rubber latex, epoxy accelerated resin, a catalyst, fumed silica, nano silver and the like. The wear-resistant and mildewproof non-stick pan coating prepared in the invention is chemically stable at the cooking temperature and does not generate hazardous substance PFOA. The coating has relatively great hardness and the damages of spatulas or spoons to the surface coating of the non-stick pan can be avoided. The non-stick pan prepared from the coating has low cost and a long service life.

The invention relates to paper technology used waste pulp to produce sheet electronic component paper characteristic carried band base paper. It includes the following steps: mixing 50-80% broadleaf pulp, 0-35% need pulp, 0-15% mechanism ground pulp and sending them into high concentration pulping machine to pump to 40-48 degree SR; adding 0.8-1wt% starch and 0.5-1wt% sizing agent to form cover pulp; de-inking, de-sanding, de-dusting for the waste pulp; sending them into the pulping machine; putting into core pulp storing pool; adding 0.8-1wt% starch and 0.5-1wt% sizing agent to form core pulp; distributing the cover and core pulp into cover net and core net by splitting box to form many paper sheet; spraying a layer of starch on them; folding them to form base paper; rolling; drying; dehydrating; surface sizing; cooling; balancing moisture; coiling up. The invention has the advantages of reasonable technology, convenient production, stable quality, practicality, and environmental protection.

A method of producing a semiconductor device according to the present invention comprises steps of:

• • (A) forming trenches (13) on the front surface (FS) of a semiconductor substrate (11) on the back surface (BS) of which a nitride film (12b) is formed;
  • (B) depositing an insulating film (15) to bury the trenches (13);
  • (C) removing the nitride film (12b) on the back surface (BS) of the semiconductor substrate (11) after the step (B); and
  • (D) annealing before the insulating film (15) is etched after the step (C).

The invention discloses a photocurable resin-based ceramic composite material and a ceramic green body degreasing method. By optimizing the design of a resin system, the method increases the penetration depth of a ceramic slurry system and reduces the molding dimensional error while maintaining the system reaction activity; furthermore, the interlayer bonding force of a ceramic green body and theadhesion between the ceramic green body and a printing platform are improved, and the detachment between the ceramic green body and the platform as well as the cracks on the surface of the ceramic green body are reduced.