Method of using laminated dressing board

Patent metadata

Field	Value
Publication number	US-10668595-B2
Application number	US-201815880817-A
Country	US
Kind code	B2
Filing date	Jan 26, 2018
Priority date	Jan 27, 2017
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

A method of using a laminated dressing board is provided. In the laminated dressing board, a shape adjustment dressing layer containing first abrasive grains and used for shape adjustment of a cutting blade and a setting dressing layer containing second abrasive grains and used for setting of the shape-adjusted cutting blade are laminated. The method includes a holding step of holding the shape adjustment dressing layer side of the laminated dressing board by a chuck table, a setting dressing step of causing the cutting blade to cut into the laminated dressing board from the setting dressing layer side to form a first groove in the setting dressing layer, and a shape adjustment dressing step of causing the cutting blade to cut into the bottom of the first groove along the first groove to form a second groove in the shape adjustment dressing layer.

First claim

What is claimed is:

1. A method of using a laminated dressing board in which a shape adjustment dressing layer containing first abrasive grains and used for shape adjustment of a cutting blade and a setting dressing layer containing second abrasive grains and used for setting of the shape-adjusted cutting blade are laminated, the method comprising:
a holding step of holding the shape adjustment dressing layer side of the laminated dressing board by a chuck table;
a setting dressing step of causing the cutting blade to cut into the laminated dressing board from the setting dressing layer side to form a first groove in the setting dressing layer; and
a shape adjustment dressing step of causing the cutting blade to cut into a bottom of the first groove along the first groove to form a second groove in the shape adjustment dressing layer, wherein the cutting blade used in the setting dressing step is the same cutting blade used in the shape adjustment dressing step.

2. The method of using the laminated dressing board according to claim 1 , wherein:
said setting dressing step negates dulling of a cutting edge of the cutting blade; and
said shape adjustment dressing step adjusts the shape of the cutting blade to a shape concentric with a rotary shape associated with the cutting blade.

3. The method of using the laminated dressing board according to claim 1 , wherein:
said first abrasive grains of said shape adjustment dressing layer comprise white alundum; and
said second abrasive grains of said setting dressing layer comprise green carborundum.

4. A method of using a laminated dressing board in which a shape adjustment dressing layer containing first abrasive grains and used for shape adjustment of a cutting blade and a setting dressing layer containing second abrasive grains and used for setting of the shape-adjusted cutting blade are laminated, the method comprising:
a holding step of holding the shape adjustment dressing layer side of the laminated dressing board by a chuck table;
a setting dressing step of causing the cutting blade to cut into the laminated dressing board from the setting dressing layer side to form a first groove in the setting dressing layer; and
a shape adjustment dressing step of causing the cutting blade to cut into a bottom of the first groove along the first groove to form a second groove in the shape adjustment dressing layer,
wherein the method further comprises a first shape adjustment dressing step of causing the cutting blade to cut into the laminated dressing board from the setting dressing layer side to form a third groove having such a depth as to reach the shape adjustment dressing layer, prior to the setting dressing step.

5. A method of using a laminated dressing board in which a shape adjustment dressing layer containing first abrasive grains and used for shape adjustment of a cutting blade and a setting dressing layer containing second abrasive grains and used for setting of the shape-adjusted cutting blade are laminated, the method comprising:
a holding step of holding the setting dressing layer side of the laminated dressing board by a chuck table;
a shape adjustment dressing step of causing the cutting blade to cut into the laminated dressing board from the shape adjustment dressing layer side to form a first groove; and
a setting dressing step of causing the cutting blade to cut into a bottom of the first groove along the first groove to form a second groove in the setting dressing layer,
wherein the cutting blade used in the setting dressing step is the same cutting blade used in the shape adjustment dressing step.

6. The method of using the laminated dressing board according to claim 5 , wherein:
said shape adjustment dressing step adjusts the shape of the cutting blade to a shape concentric with a rotary shape associated with the cutting blade; and
said setting dressing step negates dulling of a cutting edge of the cutting blade.

7. The method of using the laminated dressing board according to claim 5 , wherein:
said first abrasive grains of said shape adjustment dressing layer comprise white alundum; and
said second abrasive grains of said setting dressing layer comprise green carborundum.

8. A method of using a laminated dressing board in which a shape adjustment dressing layer containing first abrasive grains and used for shape adjustment of a cutting blade and a setting dressing layer containing second abrasive grains and used for setting of the shape-adjusted cutting blade are laminated, the method comprising:
a holding step of holding the setting dressing layer side of the laminated dressing board by a chuck table;
a shape adjustment dressing step of causing the cutting blade to cut into the laminated dressing board from the shape adjustment dressing layer side to form a first groove; and
a setting dressing step of causing the cutting blade to cut into a bottom of the first groove along the first groove to form a second groove in the setting dressing layer,
wherein in the shape adjustment dressing step, the cutting blade is caused to cut into the laminated dressing board to such a depth that the setting dressing layer is exposed at the bottom of the first groove.

Assignees

• Disco Corp

Inventors

• Sekiya Kazuma

Classifications

• B24B7/228

  for grinding thin, brittle parts, e.g. semiconductors, wafers (grinding edges of thin, brittle parts B24B9/065) · CPC title

• B24B53/12 Primary

  Dressing tools; Holders therefor · CPC title

• B24B53/06

  of profiled abrasive wheels · CPC title