7results about How to "Thick enough" patented technology

A composite cover plate and a display device are provided, the composite cover plate has a visible area and a peripheral area located on at least one side of the visible area, and the composite cover plate comprises a plastic substrate, a decorative layer, a supporting layer and a shielding layer. The plastic substrate has a haze in the range of 10% to 30%, and has a thickness in the range of 50 [mu] m to 250 [mu] m. The decorative layer is attached to the surface of the plastic substrate, has a thickness in the range of 16 [mu] m to 24 [mu] m, and has an optical density in the range of 1.5 to 2.5. The peripheral area of the composite cover plate is defined by the vertical projection of the decorative layer. The supporting layer is provided with an upper layer surface and a lower layer surface. The upper layer surface is bonded to the plastic substrate and the decorative layer. The masking layer is attached to the lower layer surface and has an optical density in the range of 5.0 to 6.2. The L * of the CIELAB color space of the peripheral region of the composite cover plate measured by the plastic substrate is in the range of 90 to 96. Therefore, the decorative layer can achieve a sufficient decorative effect, and the peripheral area of the composite cover plate can achieve sufficient brightness.

This invention relates to the field of semiconductor manufacturing technology, and more particularly to a wafer thinning method. The wafer thinning method includes the following steps: S1: halving the front side of the wafer; S2: applying a protective film to the front side of the wafer, the thickness of which is greater than or equal to 215 μm; S3: loading the wafer onto the grinding station of a thinning machine, where the thinning machine grinds the back side of the wafer, and the spindle speed of the thinning machine is 3500 rpm to 4500 rpm. The DBG process is used to thin ultra-thin wafers. By applying a protective film with a thickness greater than or equal to 215 μm to the front side of the halved wafer, the support effect on the wafer is improved, reducing stress release and wafer warping during the thinning process. By increasing the spindle speed of the thinning machine, the grinding force during the thinning process is increased, improving grinding efficiency, further reducing local stress, avoiding defects such as wafer breakage and fragmentation, and improving the product yield of the wafer.

The utility model relates to the field of photovoltaic technology, in particular to a photovoltaic connector. The utility model provides a photovoltaic connector which comprises a body and a connecting piece, the connecting piece is installed on the body through a tool, a guide groove and a limiting groove are formed in the connecting piece, and the sectional area of the guide groove is gradually reduced in the direction close to the limiting groove. Due to the fact that the sectional area of the opening of the guide groove is large and the side wall of the guide groove inclines towards the direction of the limiting groove, a tool can conveniently enter the limiting groove along the guide groove, installation of a connecting piece is convenient, due to the design of the guide groove, the tool can still be easily matched with the connecting piece to work when the sight is poor, blind screwing is achieved, and the operation difficulty can be reduced.

The invention provides a rotor assembly of a self-starting permanent magnet auxiliary synchronous reluctance motor and a motor, the rotor assembly comprises a rotor iron core and permanent magnets, the rotor iron core comprises an outer layer filling groove, an inner layer filling groove, permanent magnet grooves, a shaft hole and a rotor excircle, the shaft hole is located at the central axis position of the rotor iron core, and the permanent magnet grooves are located in the outer layer filling groove. The permanent magnet grooves are located in the periphery of the shaft hole so that the permanent magnets can be arranged in the permanent magnet grooves, the inner-layer filling grooves are located between the permanent magnet grooves and the outer circle of the rotor, and the outer-layer filling grooves are located between the inner-layer filling grooves and the outer circle of the rotor. The permanent magnet grooves, the inner-layer filling grooves and the outer-layer filling grooves form a magnetic barrier layer in the radial direction of the rotor, and the inner-layer filling grooves and the outer-layer filling grooves are filled with conductive conductors. According to the self-starting permanent magnet auxiliary synchronous reluctance motor, the problem of low starting torque of the self-starting permanent magnet auxiliary synchronous reluctance motor in the prior art can be solved.

The utility model discloses an auxiliary edge covering device of silicon wafer, at least including the conductor with silicon wafer interval distribution and located silicon wafer side, wherein, the positive and negative nature of the charge of conductor and the charge of silicon wafer is opposite, make the conductor to the edge covering paint of the side edge of silicon wafer produce electrostatic attraction, for realizing the auxiliary edge covering effect of silicon wafer, the utility model discloses for improving the protection coating thickness of the position of the adjacent surface intersection of silicon wafer side edge has obvious improvement effect, and single edge covering can obtain enough protection coating thickness, greatly improved the production speed of silicon wafer edge covering, and the static auxiliary edge covering device structure simple, easy to process of the application provides, and the equipment cost investment is less, is suitable for batch production.

The utility model discloses a battery case and monomer battery, this battery case includes the lower casing for accommodating electric core and the sealing element for sealing liquid injection hole, and the lower casing and sealing element are all fixedly connected to the upper casing, and the upper casing is rectangular board, and is equipped with liquid injection hole on one corner, wherein, the radius of liquid injection hole is recorded as R, and the distance of the center point of the circle of liquid injection hole to the nearest side edge of the upper casing is recorded as L1, and 0.1mm<=L1-R<=2mm. A battery case and monomer battery, the structure and position of setting liquid injection hole make that the battery case can keep the strength of having, and can effectively guarantee the sealing of liquid injection hole, simplify the manufacturing process simultaneously, effectively guarantee the safety of battery, improve the service life of battery.

The riding sport pants comprise two trouser leg parts, each trouser leg part comprises a three-dimensional front trouser piece and a three-dimensional rear trouser piece which are spliced front and back, each three-dimensional front trouser piece comprises a front left upper section piece and a front right upper section piece which are located on the upper portion and spliced left and right, and a front lower section splicing piece spliced to the lower side of the front left upper section piece; the three-dimensional rear trouser piece comprises a left rear middle piece, a right rear middle piece and a rear lower section splicing piece, the left rear middle piece is spliced and connected with the front left upper section piece through a front left side splicing piece, the right rear middle piece is spliced and connected with the front right upper section piece through a front right side splicing piece, and the upper ends of the three-dimensional rear trouser pieces of the two trouser leg parts are spliced and connected with the rear machine head piece. The lower ends of the left rear middle pieces and the right rear middle pieces of the two trouser leg parts are connected with the crotch bottom splicing piece in a splicing mode, the rear lower section splicing piece is connected with the crotch bottom splicing piece in a splicing mode, and the rear portions of the upper ends of the two trouser leg parts are connected with the rear waist face in a sewing mode. The problems that an existing conventional pants type and a loose wearing pants type are not suitable for riding sports, and the riding comfort is poor can be solved.