Fabrication of III–V on Insulator Structures on Si Using Microchannel Epitaxy with a Two-Step Growth Technique

Autor: Shinichi Takagi, Masato Shichijo, Ryosho Nakane, Satoshi Sugahara
Rok vydání: 2007
Předmět:
Zdroj: Japanese Journal of Applied Physics. 46:5930-5934
ISSN: 1347-4065
0021-4922
Popis: We report a new microchannel epitaxy (MCE) technique for forming III–V semiconductor on insulator (III–V-OI) structures on a Si substrate with a thermally oxidized SiO2 mask for high performance n-type metal–insulator–semiconductor field-effect transistors (MISFETs). To reduce dislocations and antiphase domains (APDs), we propose a novel fabrication method of forming III–V-OI structures, where a two-step growth method is combined with MCE. The growth temperature of the low-temperature buffer layers and the growth rate in the two-step growth are optimized to meet the competing requirements for the reduction in APDs and selective growth. We demonstrate a fabrication of high-quality GaAs-OI structures using our proposed growth method under an optimized growth condition.
Databáze: OpenAIRE