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Title:
APPARATUS AND METHOD OF CLEANING VAPOR DEPOSITION MASK
Document Type and Number:
Japanese Patent JP2010106304
Kind Code:
A
Abstract:

To provide an apparatus capable of increasing the use frequency of a vapor deposition mask and improving the reuse efficiency of a vapor deposition agent by efficiently cleaning the vapor deposition mask for an organic EL element and efficiently recovering the vapor deposition agent.

The vapor deposition agent is separated from the vapor deposition mask 2 by irradiating the vapor deposition mask 2 with pulse laser 10. The vapor deposition agent is sucked from a suction nozzle 3 and separated from air by a cyclone 6 to be deposited on the bottom of cyclone 6. After that, the vapor deposition agent is recovered in a vapor deposition agent recovering part 7 by opening a valve 12. Next, a valve 13 is opened to move the vapor deposition agent to a vapor deposition agent purifying part 8 to purify the vapor deposition agent. A valve 14 is opened and the purified vapor deposition agent is stored in the vapor deposition agent storing part 9. As a result, the vapor deposition mask 2 is cleaned without damage and the vapor deposition agent is recovered with high efficiency.


Inventors:
TAKAHARA YOICHI
KATAOKA FUMIO
YUMIBA KENJI
KATAGIRI KENJI
IZAKI MAKOTO
Application Number:
JP2008278289A
Publication Date:
May 13, 2010
Filing Date:
October 29, 2008
Export Citation:
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Assignee:
HITACHI HIGH TECH CORP
International Classes:
C23C14/00; C23C14/24; H01L51/50; H05B33/10
Attorney, Agent or Firm:
Polaire Patent Business Corporation