Substrate ea GaAs
Tlhaloso
Gallium Arsenide (GaAs) ke sehlopha sa bohlokoa le se hōlileng tsebong sa III-Ⅴ semiconductor, se sebelisoang haholo lefapheng la optoelectronics le microelectronics.Li-GaAs li arotsoe haholo-holo ka mekhahlelo e 'meli: li-GaAs tse sireletsang halofo le li-GaA tsa mofuta oa N.Li-GaA tsa semi-insulating li sebelisoa haholo-holo ho etsa li-circuits tse kopantsoeng tse nang le mekhoa ea MESFET, HEMT le HBT, e sebelisoang ho radar, microwave le millimeter wave communications, lik'homphieutha tse lebelo le holimo le li-optical fiber communications.Li-GaA tsa mofuta oa N li sebelisoa haholo-holo ho LD, LED, haufi le li-lasers tsa infrared, lasers ea matla a phahameng a quantum hantle le lisele tsa letsatsi tse sebetsang hantle haholo.
Thepa
| Crystal | Qheletsoe | Mofuta oa Tsamaiso | Khokahano ea Phallo cm-3 | Boima ba cm-2 | Mokhoa oa Kholo |
| Li-GaAs | Ha ho letho | Si | / | <5×105 | LEC |
| Si | N | >5×1017 | |||
| Cr | Si | / | |||
| Fe | N | ~2×1018 | |||
| Zn | P | >5×1017 |
Tlhaloso ea Substrate ea GaAs
Karolo e nyenyane ea GaAs e bolela karoloana e entsoeng ka thepa ea kristale ea gallium arsenide (GaAs).GaAs ke motsoako oa semiconductor o entsoeng ka likarolo tsa gallium (Ga) le arsenic (As).
Li-substrates tsa GaAs hangata li sebelisoa masimong a elektroniki le optoelectronics ka lebaka la thepa ea tsona e ntle haholo.Lintho tse ling tsa bohlokoa tsa likaroloana tsa GaAs li kenyelletsa:
1. Ho tsamaea ha elektronike e phahameng: Li-GaAs li na le motsamao o phahameng oa elektronike ho feta lisebelisoa tse ling tse tloaelehileng tsa semiconductor tse kang silicon (Si).Tšobotsi ena e etsa hore substrate ea GaAs e tšoanelehe bakeng sa lisebelisoa tsa elektronike tse matla haholo.
2. Lekhalo le tobileng la lihlopha: Li-GaAs li na le lekhalo le tobileng la lihlopha, e leng se bolelang hore khanya e sebetsang hantle e ka etsahala ha li-electrone le masoba li kopana hape.Tšobotsi ena e etsa hore li-GaAs li sebetse hantle bakeng sa lisebelisoa tsa optoelectronic tse kang light emitting diodes (LED) le lasers.
3. Wide Bandgap: GaAs e na le sehlopha se pharaletseng ho feta silicon, e leng se nolofalletsang ho sebetsa ka mocheso o phahameng.Thepa ena e lumella lisebelisoa tse thehiloeng ho GaAs hore li sebetse ka mokhoa o atlehileng libakeng tse phahameng tsa mocheso.
4. Lerata le tlaase: Li-substrates tsa GaAs li bontša maemo a tlaase a lerata, a etsang hore li tšoanelehe bakeng sa li-amplifiers tse tlaase le lisebelisoa tse ling tsa elektronike tse hlokolosi.
Li-substrates tsa GaAs li sebelisoa haholo lisebelisoa tsa elektronike le tsa optoelectronic, ho kenyelletsa le li-transistors tse lebelo le phahameng, li-circuits tse kopantsoeng tsa microwave (ICs), lisele tsa photovoltaic, li-photon detectors le lisele tsa letsatsi.
Li-substrates tsena li ka lokisoa ho sebelisoa mekhoa e fapaneng e kang Metal Organic Chemical Vapor Deposition (MOCVD), Molecular Beam Epitaxy (MBE) kapa Liquid Phase Epitaxy (LPE).Mokhoa o khethehileng oa ho hōla o sebelisoang o itšetlehile ka kopo e lakatsehang le litlhoko tsa boleng ba substrate ea GaAs.
