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GB1381417A - Method of securing articles - Google Patents

Method of securing articles

Info

Publication number
GB1381417A
GB1381417A GB4528473A GB4528473A GB1381417A GB 1381417 A GB1381417 A GB 1381417A GB 4528473 A GB4528473 A GB 4528473A GB 4528473 A GB4528473 A GB 4528473A GB 1381417 A GB1381417 A GB 1381417A
Authority
GB
United Kingdom
Prior art keywords
seed crystal
holder
recess
foil
crystal
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
GB4528473A
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB4528473A priority Critical patent/GB1381417A/en
Publication of GB1381417A publication Critical patent/GB1381417A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B15/00Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C30B15/32Seed holders, e.g. chucks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1381417 Seed crystal holder MULLARD Ltd 27 Sept 1973 45284/73 Headings B1G and B1S A seed crystal in which part is enclosed by a layer of 0.025 to 0.5 mm. thick metal foil is secured in a V-shaped longitudinally extending recess in a holder by clamping wires acting radially on the foil covered seed crystal. In the recess the angle between the limbs of the V is equal to the angle between two adjacent flat faces of the seed crystal, i.e. from 60 to 120‹. The metal of the foil is selected from annealed gold, nickel, aluminium, lead, tin or platinum. The seed holder has preferably grooves for the wire as has the enclosed seed crystal remote from the recess. As shown in the figures seed crystal 1 is secured in bolder 2, with part of the length of the crystal adjacent the holder enclosed by gold foil 3, by gold wires 4. As shown in Fig. 2, the recess is formed by limbs 6 and 7 and between these limbs a slot 8 is provided which avoids stress on the crystal at its vertex 9. The holder is used in growing single crystals by pulling from a melt. For Figure see next column
GB4528473A 1973-09-27 1973-09-27 Method of securing articles Expired GB1381417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4528473A GB1381417A (en) 1973-09-27 1973-09-27 Method of securing articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4528473A GB1381417A (en) 1973-09-27 1973-09-27 Method of securing articles

Publications (1)

Publication Number Publication Date
GB1381417A true GB1381417A (en) 1975-01-22

Family

ID=10436619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4528473A Expired GB1381417A (en) 1973-09-27 1973-09-27 Method of securing articles

Country Status (1)

Country Link
GB (1) GB1381417A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0792953A1 (en) * 1996-03-01 1997-09-03 Shin-Etsu Handotai Company Limited Seed crystal holder
US8956455B2 (en) * 2007-02-13 2015-02-17 Siemens Medical Solutions Usa, Inc. Seed crystal holder for growing single crystal from melt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0792953A1 (en) * 1996-03-01 1997-09-03 Shin-Etsu Handotai Company Limited Seed crystal holder
US5851287A (en) * 1996-03-01 1998-12-22 Shin-Etsu Handotai Co., Ltd. Seed crystal holder
US8956455B2 (en) * 2007-02-13 2015-02-17 Siemens Medical Solutions Usa, Inc. Seed crystal holder for growing single crystal from melt

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee