专利检索 ap:("DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED") AND inv:"DORN, Bärbel Susanne Charlotte" 第 1 页

1.

发明公开
THICK SINGLE CRYSTAL DIAMOND LAYER METHOD FOR MAKING IT AND GEMSTONES PRODUCED FROM THE LAYER 有权
标题翻译：厚单晶金刚石层，用于生产由通过工作层层和珠宝

公开(公告)号：EP1290251A1

公开(公告)日：2003-03-12

申请号：EP01943715.1

申请日：2001-06-14

申请人： DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED

发明人： SCARSBROOK, Geoffrey Alan , MARTINEAU, Philip Maurice , DORN, Bärbel Susanne Charlotte , COOPER, Andrew Michael , COLLINS, John Lloyd , WHITEHEAD, Andrew John , TWITCHEN, Daniel James

IPC分类号： C30B25/02 , C30B25/20 , C30B29/04 , C30B33/00 , C23C16/27 , C30B25/10

CPC分类号： C30B25/105 , A44C17/00 , B01J3/06 , B01J2203/062 , B01J2203/0655 , C30B25/02 , C30B25/20 , C30B29/04 , Y10T428/263 , Y10T428/30

摘要： A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer. The method involves the homoepitaxial growth of the diamond layer on a low defect density substrate in an atmosphere containing less than 300ppb nitrogen. Gemstones can be manufactured from the layer.