Grindstone tool

a technology of grinding stone and tool, which is applied in the direction of gear teeth, gear teeth, gear-teeth manufacturing apparatus, etc., can solve the problems of difficult to find the cause of damage, the quality of the grinding stone cannot be checked at the time of manufacture, and the inability to check the characteristic properties

Inactive Publication Date: 2006-01-19
DISCO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] It is an object of the present invention to provide a grindstone tool, which enables the checking of the characterist

Problems solved by technology

Therefore, the quality of the grindstone cannot be checked at the time when it is manufactured.
Consequently, when the resinoid grindstone is broken or damages a workpiece during its use, it is difficult to find the cause of the damage.
Further, it is impossible to check the characteristic properties such as the thickness of a cutting edge, the length of a projecting edge of the blade, the size and dens

Method used

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Examples

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first embodiment

[0021]FIG. 1 shows a grinding wheel having a grindstone as a grindstone tool according to the present invention.

[0022] The grinding wheel 2 shown in FIG. 1 is constituted by an annular grindstone base 21 andapluralityof grindstones 22 mounted on the undersurface of the grindstone base 21. Each of the grindstones 22 is composed of a resinoid grindstone manufactured by kneading abrasive grains with a resin bonding material, molding the kneaded product into a rectangular parallelpiped form and baking it. One of the grindstones 22 each composed of a resinoid grindstone has a recessed portion 221 in the top end face that is an unused area as shown in FIG. 2, and a radio IC tag 3 is embedded in this recessed portion 221. The radio IC tag 3 comprises a memory from, and to, which information can be read, and written, with no contact, by means of electric waves or electromagnetic waves.

[0023] Data on the characteristic properties of the resinoid grindstone are stored in the radio IC tag 3 e...

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PUM

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Abstract

A grindstone tool forperformpredeterminedprocessing on a workpiece, wherein a radio IC tag from, and to, which information can be read, and written, without contact is embedded in the grindstone tool.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a grindstone tool which has a grindstone such as resinoid grindstone manufactured by kneading abrasive grains with a bonding material, molding the kneaded product into a predetermined form and baking it and is used to perform a predetermined processing on a workpiece. DESCRIPTION OF THE PRIOR ART [0002] In the production process of a semiconductor device, a plurality of areas are sectioned by dividing lines called “streets” arranged in a lattice pattern on the front surface of a substantially disk-like semiconductor wafer, and a circuit such as IC or LSI is formed in each of the sectioned areas. After the back surface of this semiconductor wafer is ground to a predetermined thickness by a grinding machine, the semiconductor wafer is cut along the dividing lines to be divided into individual semiconductor chips. [0003] A grinding stone is used to grind the back surface of the above semiconductor wafer, and a grindstone bl...

Claims

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Application Information

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IPC IPC(8): B24B49/00B24D99/00
CPCB24B7/228B24D7/06H01Q1/2225H01Q1/22G06K19/04
Inventor SEKIYA, KAZUMA
Owner DISCO CORP
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