发明名称 |
Quantum device fabrication method |
摘要 |
The present invention is directed to a method of fabricating quantum devices such as quantum boxes and quantum wires measuring as small as several tens of nanometers utilizing selectivity based on crystal plane orientation. A substrate is provided with a surface having an (100) crystal plane orientation. A first layer of a semiconductor material, such as AlGaAs or GaAs, is epitaxially grown on the surface of the substrate as a trapezoid having a (100) crystal plane orientation top surface and a (111)B crystal plane orientation side surface around the top surface. An As2 beam is used for MBE growth of a second layer of GaAs or InGaAs on the (100) surface of the first layer. The growth of the third layer on the (111)B crystal plane orientation region is prevented by an As trimer structure such that growth only takes place at the (100) crystal plane orientation region.
|
申请公布号 |
US5258326(A) |
申请公布日期 |
1993.11.02 |
申请号 |
US19920858733 |
申请日期 |
1992.03.27 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
MORISHIMA, MITSUKATA;HAYAKAWA, TOSHIROH |
分类号 |
C30B23/02;H01L21/20;H01L21/203;H01L21/335;H01L29/06;H01L29/12;(IPC1-7):H01L21/203 |
主分类号 |
C30B23/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|