Global Patent Index - EP 0991796 A1

EP 0991796 A1 2000-04-12 - MAKING MONOCRYSTALS IN THE FORM OF PLATES BY GROWTH IN A SOLUTION

Title (en)

MAKING MONOCRYSTALS IN THE FORM OF PLATES BY GROWTH IN A SOLUTION

Title (de)

HERSTELLUNG VON PLATTENFÖRMIGEN EINKRISTALLEN DURCH LÖSUNGSWACHSTUM

Title (fr)

FABRICATION DE MONOCRISTAUX EN FORME DE PLAQUES PAR CROISSANCE EN SOLUTION

Publication

EP 0991796 A1 (FR)

Application

EP 98933697 A

Priority

  • FR 9801325 W
  • FR 9707835 A

Abstract (en)

[origin: FR2764909A1] The invention concerns a method for making a monocrystal by growth in a solution from a crystal nucleus supported on a rotating platform immersed in a solution consisting in: orienting the crystal nucleus (53, 54, 55) on the platform (43, 44, 45) along the orientation for the required monocrystal; bringing about the monocrystal (56, 57, 58) growth between the platform (43, 44, 45) and a plane located opposite the platform and at a predetermined distance from the platform, said plane blocking the monocrystal growth in the direction perpendicular to the platform and favouring a lateral growth of the monocrystal in the direction parallel to the platform: proceeding with the monocrystal (56, 57, 58) growth until the required lateral growth is obtained.

IPC 1-7 (main, further and additional classification)

C30B 7/00; C30B 29/14

IPC 8 full level (invention and additional information)

C30B 7/00 (2006.01)

CPC (invention and additional information)

C30B 7/00 (2013.01); C30B 29/14 (2013.01)

Combination set (CPC)

C30B 7/00 + C30B 29/14

Citation (search report)

See references of WO 9859097A1

Designated contracting state (EPC)

DE GB

EPO simple patent family

FR 2764909 A1 19981224; FR 2764909 B1 19990716; EP 0991796 A1 20000412; WO 9859097 A1 19981230

INPADOC legal status


2001-07-18 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010103

2001-04-04 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010216

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991216

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE GB