摘要:
A method of processing a semiconductor wafer. The wafer is secured to a wafer supporting member having a data carrier. Information required for working the semiconductor wafer is input to the data carrier. The wafer is then worked according to information read from the data carrier. The data carrier is configured to permit operations such as back grinding, dicing and pickup of the wafer, and prevents wafer breakage when the wafer is carried between different operations.
摘要:
A layer of base material has a film layer and a barrier layer on the film layer, and also adhesive tape has the base material and an adhesive layer on the barrier layer. Thus, they do not have any fish-eye or foreign substance on their surfaces, so that accuracy in thickness are improved and contamination of a material to be adhered with the adhesive layer is also improved.
摘要:
A card sealed by using a composition which includes an acrylate compound polymerizable by an ionizing radiation and 1 to 40 parts by weight of a polyfunctional isocyanate compound per 100 parts by weight of the acrylate compound and can be cured by irradiation of the ionizing radiation and a process for producing a card disposing a coating layer of the composition between a substrate sheet and a cover sheet and curing the coating layer by irradiation of an ionizing radiation.
摘要:
A cover tape for chip transportation stuck to a surface of a carrier tape which has parts for accommodating chips formed intermittently in its lengthwise direction, to thereby seal the chip accommodating parts, wherein said cover tape comprises a tape-shaped substrate and pressure sensitive adhesive parts superimposed on one side of the tape-shaped substrate so that the pressure sensitive adhesive parts do not face the chip accommodating parts, the above pressure sensitive adhesive parts comprising a silicone pressure sensitive adhesive and a crosslinking agent (C) capable of crosslinking therewith, the above silicone pressure sensitive adhesive comprising: (A) a silicone resin component and (B) a silicone rubber component which contains a phenyl group. This cover tape for chip transportation enables avoiding a lifting/separation of cover tape from carrier tape caused by a difference in thermal shrinkage ratio when a polystyrene carrier tape is used.
摘要:
An adhesive sheet according to the present invention comprises a substrate having coated on the surface thereof an adhesive layer consisting of an adhesive and a radiation polymerizable compound, which compound is a urethane acrylate oligomer having a molecular weight of 3,000-10,000, preferably 4,000-8,000. The adhesive sheet is preferably used in subjecting semiconductor wafers to dicing operation and no adhesive sticks to and remains on the back side surface of the wafer chips as picked up.
摘要:
An adhesive sheet according to the present invention comprises a substrate having coated on the surface thereof an adhesive layer consisting of an adhesive and a radiation polymerizable compound, which compound is a urethane acrylate oligomer having a molecular weight of 3,000-10,000, preferably 4,000-8,000. The adhesive sheet is preferably used in subjecting semiconductor wafers to dicing operation and no adhesive sticks to and remains on the back side surface of the wafer chips as picked up.
摘要:
An adhesive sheet according to the present invention comprises a substrate having coated on the surface thereof an adhesive layer consisting of an adhesive and a radiation polymerizable compound, said compound being a urethane acrylate oligomer having a molecular weight of 3,000-10,000, preferably 4,000-8,000. The adhesive sheet is preferably used in subjecting semiconductor wafers to dicing operation and no adhesive sticks to and remains on the back side surface of the wafer chip as picked up.
摘要:
The present invention provides an IC tag which has a structure comprising a first adhesive layer formed on a surface of a substrate sheet, an electronic circuit and an IC chip connecting both ends of the electronic circuit, both formed on the surface of the first adhesive layer, and a second adhesive layer covering the electronic circuit and the IC chip. The IC tag further includes a release agent layer formed at positions corresponding to the both ends of the electronic circuit and located at the interface between the substrate sheet and the first adhesive layer. When the IC tag attached to an article is peeled off, the built-in electronic circuit is surely broken.
摘要:
The present invention provides a cover tape comprising a tapelike base material 1, adhesive parts 2 formed on one side of the base material 1 at both edges along the longitudinal direction thereof, and a nonadhesive resin part 3 formed between the adhesive parts 2 and having substantially the same thickness as that of the adhesive parts 2. This cover tape is used to collectively pack chips and other small items while keeping them separate from each other to thereby permit the storage, transportation and automatic takeout thereof, which cover tape can be rendered very long. Further, the present invention provides a coating applicator suitable for use in the production of the above cover tape.
摘要:
An optical fiber connector cleaner (1) comprises a housing (10), a winding means (32) and a delivery means (34) for a cleaning tape (T) which are disposed in the housing, a cleaning means (20) having a bar-like cleaning section (21) projecting outwardly of the housing, on the front-end of the cleaning section the cleaning tape delivered from the delivery means being movably mounted under tension in an exposed state, the front-end of the cleaning section being brought into contact with the end surface of an optical fiber connector to thereby clean the end surface, a cleaning section rotating means (23) coaxially connected to the cleaning section in the housing and rotatably supported with respect to the housing; and a transmission means (40) which rotates the winding means and the cleaning section rotating means substantially simultaneously in a predetermined direction through a predetermined angle and then reverses the cleaning section rotating means to its original position.