Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
THINNING METHOD FOR CRYSTAL COMPOSITE PLATE
Document Type and Number:
Japanese Patent JP2003094318
Kind Code:
A
Abstract:

To provide a thinning method precluding sensitivity from being lowered by deviation between joint interfaces, a pit from being formed on a main surface after the machining, and disconnection from occurring in forming an electrode pattern in a crystal composite plate 4 formed by sticking two crystal veneer sheets together.

The crystal composite plate 4 is directly joined together by planarly facing, at least, two or more prescribed-thickness crystal veneer sheets to each other and securing the flatness. This thinning method for the crystal composite plate 4 planarly machines each surface of its both surfaces by planar honing into the finishing surface roughness of 3 nm or less in its mean surface roughness.


Inventors:
NISHIHARA KAZUNARI
TAJIKA HIROBUMI
OUCHI SATOSHI
YAMAMOTO TAKESHI
Application Number:
JP2001288683A
Publication Date:
April 03, 2003
Filing Date:
September 21, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B24B1/00; B24B33/055; B24B33/08; B24D7/06; (IPC1-7): B24B33/055; B24B1/00; B24B33/08; B24D7/06
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)