Crucible and method for pulling a single crystal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 17, 2015
Grant Date -
Jul 22, 2010
app pub date -
Jan 22, 2010
filing date -
Jan 22, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A crucible for pulling a silicon single crystal has a double structure comprising a silica crucible and a graphite crucible covering an outside of the silica crucible, wherein the silica crucible is provided at its opening end portion with an inward falling prevention means for imparting a radially outward force to a body portion of the silica crucible.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully