Patent classifications
B32B2038/0064
Wafer processing laminate, temporary adhesive material for wafer processing, and method for manufacturing thin wafer
A temporary adhesive material for wafer processing temporarily bonds a support to a wafer having a circuit-forming front and back surface for processing, including a composite temporary adhesive material layer having at least a two-layer structure of first and second temporary adhesive layers, the first layer including a thermoplastic resin layer that is releasably adhered to the wafer's front surface; and the second layer including a photo-curing siloxane polymer layer laminated on the first layer. A wafer processing laminate, a temporary adhesive material for wafer processing, and a method for manufacturing a thin wafer using the same, which suppress wafer warpage at the time of heat-bonding, have excellent delaminatability and cleaning removability, allow layer formation with uniform film thickness on a heavily stepped substrate, are highly compatible with steps of forming TSV, etc., have excellent thermal process resistance, and are capable of increasing productivity of thin wafers.
PREPARATION METHOD OF NATURAL BAMBOO FIBER COMPOSITES AND APPLICATION THEREOF
The present invention provides a preparation method of natural bamboo fiber composites and an application thereof. The method involves treating bamboo with a specific composition of treatment solution to obtain natural bamboo fibers with a length and a diameter that meets certain conditions; then, the natural bamboo fibers are combined with polypropylene fibers to prepare composites, and by controlling process conditions of a preparation process, a high-strength and excellent comprehensive performance composites is finally prepared. The composites produced by the method can be used as a bottom baffle of the air conditioning box in automobiles. Through the method, a high-performance natural bamboo fiber composites are provided.
METHOD OF SHAPING A CARRIER SHEET OF HIGH HARDNESS
The method for shaping a carrier sheet of high hardness, in particular a gres sheet, comprises the steps of providing a solid carrier sheet of high hardness having a thickness of at least 6 mm; covering (S100) a front surface of the carrier sheet with a removable vibration-absorbing protective layer; providing (S110) the surface of the protective layer remote from the carrier sheet with a glass sheet; on the back surface of the carrier sheet opposite the front surface thereof, forming a plurality of cavities according to a predetermined pattern. The step of forming comprises forming the cavities by milling (S120) so that in each cavity the remaining thickness of the carrier sheet along the front surface is at least 3 mm and at most 5 mm; during milling, at least one physical property of the vibration of the carrier sheet is continuously measured (S121) on the front surface of the carrier sheet by means of at least one sensor; on the basis of at the least one physical property measured by the sensor, adjusting the operation of the milling tool so that the vibration properties of the carrier sheet do not exceed predetermined threshold values; by applying a first optical method (S130), taking a first 3D image of the surface roughness of the milled cavities; further reducing the surface roughness of the cavities by shot blasting (S140), wherein during the shot blasting, the operation of the shot blasting tool is controlled using parameters determined on the basis of the first 3D image taken during the first scanning; by applying a second 3D scanning (S150), taking a second 3D image of the surface roughness of the cavities treated by shot blasting; and by applying laser beam milling (S160), further reducing the surface roughness of the cavities, wherein the operation of the laser beam milling tool is controlled on the basis of the second 3D image taken after the laser beam milling by the second 3D scanning so that the surface roughness of the cavities falls in the submicron range.
LAMINATED MATERIAL, METHOD FOR PRODUCING SAME, AND USE APPLICATION OF SAME
A laminated material includes a first base material, and a sheet material laminated on and integrated with a surface of this first base material. The first base material is made of a material selected from the group consisting of a biomass material, a plastic, a metal, a ceramic, a glass, a molded pulp, and a paper. The sheet material is substantially made of a plant-derived component. The sheet material has an absorption peak in a region of 1715 to 1725 cm.sup.1 in an infrared absorption spectrum. The sheet material can be produced by removing a liquid component from a lignocellulose solution produced by dissolving a plant raw material in an organic acid. A laminated material is produced by laminating the sheet material on a surface of the first base material, and thermocompression-bonding the sheet material and the first base material.
LAMINATED PANE HAVING REFLECTIVE SURFACE APPLIED IN CERTAIN REGIONS
A laminated pane includes at least an outer pane, a thermoplastic intermediate layer, an inner pane, at least one masking layer arranged in a region of the laminated pane, an adhesive layer, and a metal foil having an outer-side surface and an interior-side surface on which a reflective surface for reflecting light is arranged. The thermoplastic intermediate layer is arranged between the outer pane and the inner pane, the adhesive layer is arranged between the inner pane and the metal foil, and the metal foil is arranged in a region of the laminated pane which, when viewed perpendicularly through the laminated pane, lies completely within the region in which the masking layer is arranged.