CA957251A - Computerized process control system for the growth of synthetic quartz crystals - Google Patents

Computerized process control system for the growth of synthetic quartz crystals

Info

Publication number
CA957251A
CA957251A CA127,660A CA127660A CA957251A CA 957251 A CA957251 A CA 957251A CA 127660 A CA127660 A CA 127660A CA 957251 A CA957251 A CA 957251A
Authority
CA
Canada
Prior art keywords
growth
control system
process control
synthetic quartz
quartz crystals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA127,660A
Other versions
CA127660S (en
Inventor
Angelo R. Fiore (Jr.)
Ranendra K. Bhattacharyya
David W. Rudd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA957251A publication Critical patent/CA957251A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/02—Crystallisation from solutions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10T117/10—Apparatus
    • Y10T117/1004—Apparatus with means for measuring, testing, or sensing
    • Y10T117/1008—Apparatus with means for measuring, testing, or sensing with responsive control means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10T117/10—Apparatus
    • Y10T117/1024—Apparatus for crystallization from liquid or supercritical state
    • Y10T117/1096—Apparatus for crystallization from liquid or supercritical state including pressurized crystallization means [e.g., hydrothermal]
CA127,660A 1971-04-07 1971-11-15 Computerized process control system for the growth of synthetic quartz crystals Expired CA957251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00131916A US3805044A (en) 1971-04-07 1971-04-07 Computerized process control system for the growth of synthetic quartz crystals

Publications (1)

Publication Number Publication Date
CA957251A true CA957251A (en) 1974-11-05

Family

ID=22451590

Family Applications (1)

Application Number Title Priority Date Filing Date
CA127,660A Expired CA957251A (en) 1971-04-07 1971-11-15 Computerized process control system for the growth of synthetic quartz crystals

Country Status (8)

Country Link
US (1) US3805044A (en)
BE (1) BE781750A (en)
CA (1) CA957251A (en)
DE (1) DE2215998A1 (en)
FR (1) FR2132727B1 (en)
GB (1) GB1385234A (en)
IL (1) IL39146A (en)
IT (1) IT975681B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922527A (en) * 1974-12-26 1975-11-25 Nat Forge Co Temperature control apparatus
US3971876A (en) * 1974-12-26 1976-07-27 National Forge Company Temperature control apparatus
US4401487A (en) * 1980-11-14 1983-08-30 Hughes Aircraft Company Liquid phase epitaxy of mercury cadmium telluride layer
US5135603A (en) * 1982-03-11 1992-08-04 The United States Of America As Represented By The United States Department Of Energy Quartz crystal growth
US6090202A (en) * 1998-04-29 2000-07-18 Sawyer Research Products, Inc. Method and apparatus for growing crystals
US8236102B1 (en) * 2008-01-30 2012-08-07 Solid State Scientific Corporation Hydrothermal methods of fabricating trivalent-metal-ion-doped sapphire crystals
US7996096B2 (en) * 2008-02-29 2011-08-09 Fisher Controls International Llc Estimation of process control parameters over predefined travel segments

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183063A (en) * 1961-05-31 1965-05-11 Western Electric Co Autoclave for growing quartz crystals
US3621213A (en) * 1969-11-26 1971-11-16 Ibm Programmed digital-computer-controlled system for automatic growth of semiconductor crystals

Also Published As

Publication number Publication date
US3805044A (en) 1974-04-16
FR2132727A1 (en) 1972-11-24
GB1385234A (en) 1975-02-26
BE781750A (en) 1972-07-31
IL39146A0 (en) 1972-06-28
FR2132727B1 (en) 1974-08-02
DE2215998A1 (en) 1972-10-19
IL39146A (en) 1975-07-28
IT975681B (en) 1974-08-10

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