44results about How to "Uniform flatness" patented technology

A wire saw and wafer stabilizing system are provided for holding wafer sections invariantly against vibration and unwanted movement during the sawing process. A stabilizing means is applied to the ends of partially defined wafer sections at an early stage when the wafer sections are partially cut through a silicon ingot or block of silicon material. The stabilizing means serves to stabilize the wafer sections immovably against vibration, oscillation, or unwanted contact during the subsequent sawing process. The stabilizing system also accelerates handling of the wafers after slicing is completed, facilitates the cleaning process, and allows for more rapid or automated placement of the wafers in cassettes. Wafers produced by the stabilizing system are characterized by a minimized total thickness variation, substantially uniform planarity, and substantially without bow or warp.

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 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 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 photosensitive resin composition, and a display device using the same. The photosensitive resin composition comprises about 10 wt % to about 50 wt % of a solute comprising about 100 parts by weight of an acryl-based copolymer and about 5 to about 100 parts by weight of a 1,2-quinonediazide compound; and a solvent comprising a glycol-based material having a boiling point of greater than about 190 DEG C., wherein the acryl-based copolymer is a copolymer of an unsaturated carbonic acid or an anhydride thereof, an epoxy group-containing unsaturated compound, and an olefin-based unsaturated compound.

A disk clamp for clamping a number of magnetic hard disks within a disk drive has a plurality of balance weight holes and a coined index mark for use as a reference in balancing the hard disks after assembly. The disk clamp also has a coined profile located adjacent or around the balance weight holes in order to provide uniform circumferential clamp force by the disk clamp. The disk clamp has a profile that places the inner region of the disk clamp in the plastic deformation region at a certain specified clamping force at the center of the disk clamp.

The invention provides a wall surface aluminum plate system and an installing method thereof, wherein the wall surface aluminum plate system is arranged on a wall surface, and comprises a postpositive embedded plate, a vertical keel, a transverse keel, a plurality of F-shaped corner connectors and an arc-shaped aluminum plate, wherein the postpositive embedded plate is fixedly connected with the wall surface; the vertical keel is arranged on the postpositive embedded plate; the transverse keel is in an arc shape and is transversely arranged on the vertical keel; the F-shaped corner connectors are arranged on the arc-shaped surface of the transverse keel in a scattered way; the arc-shaped aluminum plate is matched with the shape of the transverse keel; the upper end and the lower end of the arc-shaped aluminum plate are respectively arranged in the F-shaped corner connectors. The wall surface aluminum plate system and the installing method of the wall surface aluminum plate system provided by the invention have the advantages that the upper and lower folding edges of the aluminum plate are made into reverse hook structures; meanwhile, the F-shaped corner connectors are designed; the upper strip edge of the aluminum plate is hung, and the lower strip edge inserter of the aluminum plate is inserted, so that the seam sealing by using a buckle plate is not needed after the installation of the arc-shaped aluminum plate is completed; the flatness and the aluminum plate connecting seam size are uniform; the appearance is attractive.

The invention discloses a positioning clamp assembly for a notching machine. The positioning clamp assembly comprises a base, a horizontal compression assembly and a vertical compression assembly, wherein the vertical compression assembly comprises a compression assembly which can move vertically in a reciprocating way and a vertical driving device for driving the compression assembly to move vertically in the reciprocating way; and the compression assembly comprises a horizontally-arranged substrate and a vertical compression plate spherically articulated on the substrate. A simultaneous horizontal and vertical fixed clamping structure is adopted, and a self-adaptive pressure plate structure is adopted in the vertical direction, so that the positioning clamp assembly is suitable for processing a plurality of samples simultaneously and has uniform flatness; during notch processing, the samples can be fastened and positioned comprehensively and are fixed firmly, and each sample has a uniform standard; and the positioning clamp assembly has higher adaptability to sample height errors, i.e., a plurality of samples are positioned in a standard way, so that deviation in a processing process is avoided, the gap manufacturing parallelism of the samples is ensured, gap errors are reduced and even eliminated, and the accuracy and precision of test data are ensured.

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.