Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1989-12-18
1990-11-20
Straub, Gary P.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
422249, C30B 1522, C30B 3500
Patent
active
049716522
ABSTRACT:
A method and apparatus for crystal growth control in a Czochralski crystal pulling process are provided wherein a plurality of thermocouples and individually controllable heating elements are embedded in an upper control section of a raised platform in a crucible containing a melt from which the crystal is pulled. The upper control section is disposed in the melt at a height below the bulk level of the melt in the crucible and underneath the crystal being pulled so as to retain the thermocouples in a position to monitor the temperature distribution of the melt below a solidification front of the crystal, and to retain the individually controllable heating elements in a position whereby the heating elements may be selectively controlled to attain a predetermined temperature distribution in the melt in a region underneath the solidification front.
REFERENCES:
patent: 3795488 (1974-03-01), Oliver
patent: 3798007 (1974-03-01), Bochman et al.
patent: 3833342 (1974-09-01), Holliday
patent: 3980438 (1976-09-01), Castonguay et al.
patent: 4000030 (1976-12-01), Ciszek
patent: 4184907 (1980-01-01), Yates
patent: 4233270 (1980-11-01), Schmidt
patent: 4239583 (1980-12-01), Hatch et al.
patent: 4263065 (1981-04-01), Wang et al.
patent: 4350557 (1982-08-01), Scholl et al.
patent: 4565598 (1986-01-01), Seymour
patent: 4591994 (1986-05-01), Washizuka et al.
patent: 4603034 (1986-07-01), Vickery
patent: 4604262 (1986-08-01), Nishizawa
patent: 4650540 (1987-03-01), Stoll
patent: 4654110 (1987-03-01), Morrison
patent: 4659421 (1987-04-01), Jewett
patent: 4687646 (1987-08-01), Mateika et al.
patent: 4734267 (1988-03-01), Kojima
patent: 4822449 (1989-04-01), Motakef
patent: 4857278 (1989-08-01), Gevelber et al.
Beulick John S.
Davis Jr. James C.
General Electric Company
Kalinchak Stephen G.
Straub Gary P.
LandOfFree
Method and apparatus for crystal growth control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for crystal growth control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for crystal growth control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-452769