Abstract:
A method of dividing, along lattice pattern-like dividing lines, a wafer which has the lattice pattern-like dividing lines and a polymer film on the front surface of a substrate and is processed to allow for division along the dividing lines, the method comprising a frame holding step for putting the wafer on the surface of an adhesive tape mounted on an annular frame; a wafer cooling step for cooling the wafer that is affixed to the surface of the adhesive tape mounted on the annular frame; and a diving step for dividing the wafer along the dividing lines by expanding the adhesive tape to which the cooled wafer is affixed.
Abstract:
The present invention can provide a solvate, a cubic crystal and a columnar crystal of 2-amino-6-benzyloxypurine by crystallization from (1) a solvent containing at least one kind of solvent selected from the group consisting of alcohol and water, (2) alcohol or (3) a water-containing solvent.
Abstract:
In a portable wireless information terminal apparatus, a terminal main body unit having a receiver unit and a transmitter unit. A data display unit is movably provided on the terminal main body unit.
Abstract:
A cable coupler including an external cylinder mechanism having an inner conductor for electrically connecting the inner conductor itself to the outer conductors of the shielded cables, an outer conductor having a larger diameter than the inner conductor, a gap portion disposed between the inner conductor and the outer conductor, and capacitors arranged in the gap portion, for electrically connecting between the outer conductor and the inner conductor, an inner portion of the external cylinder mechanism being able to be opened and closed along a longitudinal direction, an internal coupling mechanism placed inside the inner conductor and having connecting pins for holding the core wires of the shielded cables, for electrically connecting between the core wires of the shielded cables, and a base for holding the external cylinder mechanism and for electrically connecting the external cylinder mechanism to an external conductor.
Abstract:
A rubber composition obtained by kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component and a filler, and a method of improving the viscoelastic property of vulcanized rubber, comprising a first step of kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component, a filler and a sulfur component and a second step of thermally treating the kneaded material obtained in the previous step. (A1): a compound represented by formula (I) (B1): a salt of a compound represented by formula (I) (C1): a solvate of a compound represented by formula (I) (D1): a solvate of a salt of a compound represented by formula (I)
Abstract:
Optically active nipecotamide can be produced by a method for producing optically active nipecotamide comprising: a step of reacting nipecotamide with optically active lactic acid to prepare a mixture of diastereomer salts and then allowing one diastereomer salt in the mixture of the diastereomer salts to precipitate; a step of collecting the precipitated diastereomer salt; and, a step of treating the collected diastereomer salt with a base to cause optically active nipecotamide to release.
Abstract:
A wafer laser processing method for forming deteriorated layers in the inside of a wafer having a device area and a peripheral excess area surrounding the device area, the surface of the device area being higher than the surface of the peripheral excess area, involving a first step for forming a deteriorated layer in the insides of the peripheral excess area and device area by applying a laser beam to the peripheral excess area and the device area with its focal point set in the material of the peripheral excess area and the device area from the front surface side of the wafer; and a second step for forming a deteriorated layer in the inside of the device area by applying a laser beam to the device area with its focal point set in the material of the device area without applying the laser beam to the peripheral excess area.
Abstract:
Provided is a manufacturing method for a piperidine-3-ylcarbamate compound in which a pyridine-3-ylcarbamate compound and hydrogen are brought into contact in the presence of a palladium catalyst.
Abstract:
A wafer dividing method for dividing a wafer having a film on the front side thereof. The wafer dividing method includes a modified layer forming step of applying a laser beam having a transmission wavelength to the substrate of the wafer from the front side thereof along the streets so that a focal point of the laser beam is set inside the substrate, thereby forming a modified layer in the substrate along each street, a film dividing step of applying a laser beam having an absorption wavelength to the film from the front side of the wafer along each street to thereby form a laser processed groove for dividing the film along each street, a back grinding step of grinding the back side of the substrate of the wafer to thereby reduce the thickness of the wafer to a predetermined thickness, a wafer supporting step of attaching the wafer to a dicing tape supported to an annular frame, and a wafer breaking step of applying an external force to the wafer by expanding the dicing tape to thereby break the wafer along each street.
Abstract:
The present invention provides; a process for producing a compound (IV) comprising a step of reacting a compound (I) with a compound (II) in the presence of an optionally substituted cyclic secondary amine to obtain a compound (III) and a step of sequentially or simultaneously eliminating R1 and R2 from the compound (III), and then cyclizing the R1- and R2-eliminated compound to obtain the compound represented by the formula (IV); a process for producing a high purity compound (IV); an intermediate thereof; and a process for producing an intermediate.