44results about How to "Uniform flatness" patented technology

A display unit includes; a display panel, and a receptacle including of a plurality of sidewalls configured to receive the display panel, the receptacle including at least one joining projection disposed on at least one of the sidewalls, at least one joining groove formed on at least one of the sidewalls, wherein the at least one joining projection and the at least one groove are disposed on opposing sidewalls of the receptacle in substantially symmetrical positions with respect to a center line of the receptacle.

A synthetic leather is prepared from non-woven fabric and slurry. Said non-woven fabric is prepared from the fibres of small-area leather and chemical fibres. Said slurry is prepared from polyurethane resin, solvent, assistant, pigment and wooden powder. Its preparing process includes such steps as immersing non-woven fabric in slurry, rolling, scrapping, coagulating, washing, squeezing, baking, grinding, wet coating, solidifying, water washing, baking, and coating film or polishing. Its advantages are high quality and low cost.

A foamed plastic is cut to form a single-layer polishing pad having a desired rigidity and compressibility. A polishing surface of the polishing pad has a higher density than a mounting surface of the polishing pad. The polishing surface and the mounting surface may have different areas having different densities for achieving desired rigidity and compressibility property. Furthermore, methods of making such single-layer polishing pads are also disclosed.

A heating cooker includes: a top plate on which a cooking container to be heated is placed; an outer case as a main body having an upper surface on which the top plate is placed; a heater heating the cooking container; and a light emitting device disposed in the outer case, for displaying the heating state. The top plate includes: a glass substrate having a transparent light-transmitting low-expansion crystallized glass made mainly of Li₂O—AL₂O₃—SiO₂ and having β-quartz solid solution, having a crystal size smaller than the wavelength of visible light; a design layer having a black-based color disposed on an undersurface of the glass substrate; a diffusion region disposed partially on an undersurface of the design layer, for diffusedly emitting light from the light emitting device; and a light-blocking layer disposed on the undersurface of the design layer other than the diffusion region, for blocking light from below.

The invention relates to an environment-friendly curtaining odor-removing PU matted varnish and a preparation method of the environment-friendly curtaining odor-removing PU matted varnish, and belongs to the technical field of wooden coating manufacturing. The environment-friendly curtaining odor-removing PU matted varnish is prepared by mixing component A, component B, and component C according to the weight ratio of 1: 0.5: 0.4-0.7; the component A is composed of fatty acid modified odor removal alkyd resin, short-oil castor oil alkyd resin, polyamide wax anti-sediment, wetting dispersant, flatting agent, antifoaming agent, modified polyethylene wax powder, matt powder, propylene glycol monomethyl ether acetate, cyclohexanone, ethylene glycol diacetate, 50% by mass of nitrocotton fluid, and n-butyl acetate; the component B is composed of aliphatic series polyisocyanate, TDI tripolymer curing agent, TDI prepolymer, and n-butyl acetate; the component C is composed of xylene, n-butyl acetate, propylene glycol monomethyl ether acetate, acetate, and ethylene glycol diacetate. The coating has strong adhesive force, good transparency, high fullness, good flexibility, good scratching resistance, uniform gloss, stability and impact-resistance, and good waterproof and chemical resistance.

The present disclosure relates to an apparatus for sensing touch pressure. The apparatus for sensing touch pressure, according to one mode of the present disclosure, includes: a first substrate provided with a first electrode unit formed thereon; a second substrate provided with a second electrode unit formed thereon; and a porous membrane member provided between the first substrate and the second substrate and deformed or restored according to touch pressure applied to the first substrate.

A color filter substrate includes: a first partition wall for partitioning a substrate into a plurality of color element regions; a second partition wall for dividing each of the plurality of color element regions into a plurality of regions; color elements having a plurality of types, being formed on the plurality of color element regions; a transparent electrode covering the first partition wall, the second partition wall, and the color element; and a projection or an aperture formed on the transparent electrode; wherein the second partition wall is arranged in the direction in which the projection or the aperture is extended.

A packaging tray (2) includes an elongate base (3). The base includes supporting portions (31) for receiving CPU sockets (1) therein. Each supporting portion includes four sidewalls (311), and a bottom wall (313) having an upper surface and a lower surface. Each sidewall forms an inwardly extending rib (312). Four standoffs (314) are formed on the lower surface. When mounting the CPU sockets on the upper surfaces, each CPU socket rests on the corresponding ribs, and solder balls of the CPU socket are supported by the corresponding upper surface. Thus, in handling of the CPU sockets, the solder balls are unlikely to sustain damage. Conversely, the CPU sockets can be reverse mounted on the lower surfaces. The solder balls of each CPU socket are located in a horizontal plane face up, with the standoffs supporting the CPU socket. The solder balls can be accurately inspected by a flatness inspection device.

The invention provides a chemical mechanical grinding processing method and system. The method comprises the following steps: wafers obtained by different production chambers are grouped according toprofile types to obtain multiple wafer sets; control models are built for each wafer set, and comprise wafer grinding parameters; the wafers in the wafer sets are grinded according to the grinding parameters; wafer film thickness removing quantities are acquired in the grinding process; the grinding parameters of the next wafers in the same wafer sets are adjusted according to the wafer film thickness removing quantities; and the next wafers are grinded according to the adjusted grinding parameters. The system comprises the production chambers and grinding devices; the wafers produced by the different production chambers have different surface profiles; and the grinding devices are used for realizing the chemical mechanical grinding processing method. The wafers with different profiles aregrouped; and one wafer set corresponds to one control system, so that the grinding parameters of chemical mechanical grinding processing are dynamically adjusted, and the wafer flatness in the chemical mechanical grinding processing is improved.

A method, as well as a system implementing the method, for automatically aligning a bond arm with respect to a bonding support surface for supporting a substrate during a bonding process. The method comprises: rotating the bond arm for a first revolution around a longitudinal axis through a bond head moveably coupled to the bond arm, the first revolution including a plurality of predefined rotaryangular positions; pausing the rotation of the bond arm at each of the plurality of rotary angular positions; determining a tilt angle of the bond arm relative to the bonding support surface during each pause at the respective rotary angular position; and selecting the rotary angular position of the bond arm which has a tilt angle that satisfies a predefined specification such that the bond arm isaligned substantially perpendicular to the bonding support surface.

Proposed is a probe card for performing a circuit test on a wafer and, more particularly, a probe card capable of realizing a reduction in size and pitch of probe insertion holes.

The invention discloses a metal workpiece heat treatment detection polishing device which comprises a base, a motor, a first shell, a first rotating wheel and a second rotating wheel. Supports are arranged at all the four corners of the bottom end of the base. The motor is in screw connection with the left side of the top end of the base in the left-right direction, and the first shell is locatedon the right side of the motor and is in screw connection with the upper surface of the base in the front-back direction. The first rotating wheel is in key connection with the output end of the motor, and the second rotating wheel is located on the rear side of an inner cavity of the first shell and connected with the upper surface of the base through a bearing. According to the metal workpiece heat treatment detection polishing device, the problem that a workpiece is damaged due to misoperation caused by manual operation of workers is avoided, and the surface of the workpiece is polished more completely. The surface residue is avoided, the polishing flatness is uniform, the detection result is more accurate, workpieces of different shapes and sizes can be ground, and the use is more flexible. The detection difficulty of the workpieces is reduced.

A method of forming graphene includes: preparing a substrate in a reaction chamber; performing a first growth process of growing a plurality of graphene aggregates apart from each other on the substrate at a first growth rate by using a reaction gas including a carbon source; and performing a second growth process of forming a graphene layer by growing the plurality of graphene aggregates at a second growth rate slower than the first growth rate by using the reaction gas including the carbon source.

The invention provides an ultra-large cold plate vacuum brazing method and a tool for vacuum brazing. The tool sequentially comprises an upper clamping plate, an upper square pipe, an upper base plate, an elastic device, a middle base plate, upper graphite paper, lower graphite paper, a lower base plate, a lower square pipe and a lower clamping plate from top to bottom, the elastic device is formed by combining a plurality of independent cylindrical springs, and the tool is integrally pressurized. Existing vacuum equipment is used for welding an ultra-large cold plate, and brazing is conducted according to the route of the furnace temperature to 360 DEG C to 470 DEG C to 530 DEG C to 570 DEG C to 615 DEG C to 608 DEG C to 603 DEG C. According to the brazing tool, the assembly difficulty of the ultra-large cold plate is reduced, the welding quality of the large-area cold plate is improved, the welding technical problem of the ultra-large cold plate is solved through successful application of the brazing tool, and meanwhile the industry image of an enterprise is improved.

The invention discloses a multifunctional junporcelain massage tank, which comprises a junporcelain tank body with a hollow structure, wherein an electromagnetic vibrator is fixedly arranged in an inner cavity of the junporcelain tank body; an iron core of the electromagnetic vibrator is made of a silicon steel sheet; and a control lead of the electromagnetic vibrator is led out of a tank opening of the junporcelain tank body and is electrically connected with a power supply plug by a control switch; the lower part of the junporcelain tank body has a hemispheroid structure; and the vibration frequency of the electromagnetic vibrator is 183 revolutions/minute. The multifunctional junporcelain massage tank has the advantages that a junporcelain tank fired in Shenhou town, Yuzhou city, Henan province is used as a matrix tank, patients energize the electromagnetic vibrator in the junporcelain tank body under the guidance of medical care personnel, so that the iron core is heated to generate far infrared rays, and the tank body is placed at treatment acupoints, main and collateral channels or pathological change sites, so that a trace element, namely copper, in junporcelain enamel acts on human bodies to replenish the copper element to the human bodies. The multifunctional junporcelain massage tank has a simple structure, the copper element in the enamel acts on the human bodies under the vibrating action of the electromagnetic vibrator in the tank body after the electromagnetic vibrator is energized, so the massage tank has a certain health care effect.