发明名称 |
PROCESS AND DEVICE FOR OBTAINING UNFISSURED CRYSTALS |
摘要 |
PCT No. PCT/DE95/00667 Sec. 371 Date Oct. 29, 1996 Sec. 102(e) Date Oct. 29, 1996 PCT Filed May 12, 1995 PCT Pub. No. WO95/31591 PCT Pub. Date Nov. 23, 1995A process and an apparatus for obtaining unfissured crystals of GaAs after the crystal has been formed by direction solidification from a melt in a quartz crucible. The quartz crucible is immersed in molten potassium hydroxide or sodium hydroxide at a temperature of 450 DEG to 600 DEG C. |
申请公布号 |
EP0760024(B1) |
申请公布日期 |
1999.07.07 |
申请号 |
EP19950919958 |
申请日期 |
1995.05.12 |
申请人 |
FORSCHUNGSZENTRUM JUELICH GMBH |
发明人 |
ALTHAUS, MARTIN;KUESSEL, ECKHARD;SONNENBERG, KLAUS |
分类号 |
C30B11/00;C30B29/42;C30B35/00 |
主分类号 |
C30B11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|