Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRESSER FOR CMP PROCESSING, CMP PROCESSING DEVICE, AND DRESSING TREATMENT METHOD OF POLISHING PAD FOR CMP PROCESSING
Document Type and Number:
Japanese Patent JP2008229820
Kind Code:
A
Abstract:

To provide a dresser for a CMP processing capable of sufficiently dressing by a dressing treatment and holding grinding capability for a polishing pad for a long period of time.

The dresser 4 is used for performing the dressing treatment for the polishing pad provided on the CMP processing device. The dresser 4 for the CMP processing is equipped with an approximately circular support surface 4b opposed to the polishing pad, three or more belt-like abrasive grain holding parts 41A-41H approximately radially extended from a central part 4c of the support surface 4b, a plurality of abrasive grain holding parallel parts 42 which are in an approximately fan-shaped area M clipped by adjacent abrasive grain holding parts 41A-41H with each other and disposed in parallel with either one of abrasive grain holding parts 41A-41H, and a belt-like abrasive grain non-holding part 43 which is in the approximately fan-shapes area M and provided respectively between one side of the abrasive grain holding parts 41A-41H and the plurality of abrasive grain holding parallel parts 42.


Inventors:
SAITO TOSHIYA
Application Number:
JP2007076874A
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ELPIDA MEMORY INC
International Classes:
B24B53/12; B24B53/017; B24B53/02; B24D7/06; H01L21/304
Domestic Patent References:
JP2006205314A2006-08-10
JPH11300601A1999-11-02
JPH11239979A1999-09-07
JPH08243914A1996-09-24
JPS5035270B11975-11-14
JP2001157967A2001-06-12
JP2002046072A2002-02-12
JP3123256U2006-07-20
Foreign References:
US20060128288A12006-06-15
Attorney, Agent or Firm:
Sumio Tanai
Tadashi Takahashi
Naoki Ofusa
Kazunori Onami



 
Previous Patent: CUTTER DEVICE

Next Patent: SLICER