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1. WO2004009291 - POLISHING PAD FOR ENDPOINT DETECTION AND RELATED METHODS

Publication Number WO/2004/009291
Publication Date 29.01.2004
International Application No. PCT/US2003/023065
International Filing Date 23.07.2003
Chapter 2 Demand Filed 20.02.2004
IPC
B24B 49/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
10involving electrical means
B24B 37/013 2012.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
37Lapping machines or devices; Accessories
005Control means for lapping machines or devices
013Devices or means for detecting lapping completion
B24B 37/20 2012.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
37Lapping machines or devices; Accessories
11Lapping tools
20Lapping pads for working plane surfaces
B24B 37/26 2012.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
37Lapping machines or devices; Accessories
11Lapping tools
20Lapping pads for working plane surfaces
26characterised by the shape of the lapping pad surface, e.g. grooved
B24B 49/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
02according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
B24B 49/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
12involving optical means
CPC
B24B 37/013
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
37Lapping machines or devices; Accessories
005Control means for lapping machines or devices
013Devices or means for detecting lapping completion
B24B 37/205
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
37Lapping machines or devices; Accessories
11Lapping tools
20Lapping pads for working plane surfaces
205provided with a window for inspecting the surface of the work being lapped
B24B 37/26
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
37Lapping machines or devices; Accessories
11Lapping tools
20Lapping pads for working plane surfaces
26characterised by the shape of the lapping pad surface, e.g. grooved
B24B 49/02
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
02according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
B24B 49/10
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
10involving electrical means
B24B 49/105
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
49Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
10involving electrical means
105using eddy currents
Applicants
  • APPLIED MATERIALS, INC. [US]/[US]
Inventors
  • SWEDEK, Boguslaw, A.
  • BIRANG, Manoocher
Agents
  • GOREN, David, J
Priority Data
10/444,92123.05.2003US
60/398,63224.07.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLISHING PAD FOR ENDPOINT DETECTION AND RELATED METHODS
(FR) TAMPON DE POLISSAGE POUR DETECTION AU POINT TERMINAL ET PROCEDES CONNEXES
Abstract
(EN)
A polishing pad has a polishing layer (22) with a polishing surface (24) and a back surface. A plurality of grooves (28b) are formed on the polishing surface, and an indentation (52) is formed in the back surface of the polishing layer. A region on the polishing surface corresponding to the indentation in the back surface is free of grooves or has shallower grooves (28a).
(FR)
La présente invention concerne un tampon de polissage qui comprend une couche de polissage (22) comportant une surface de polissage (24) et une surface arrière. Une pluralité de rainures (28b) sont formées dans la surface de polissage, et une échancrure (52) est formée dans la surface arrière de la couche de polissage. Une région de la surface de polissage correspondant à l'échancrure dans la surface arrière est dépourvue de rainures ou présente des rainures moins profondes (28a).
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