GaAs (gálio arsenieto) Bolachas
As a leading GaAs substrate supplier, PAM-XIAMEN manufactures Epi-ready GaAs(Gallium Arsenide) Wafer Substrate including semi-conducting n type, semi-conductor C doped and p type with prime grade and dummy grade. The GaAs substrate resistivity depends on dopants, Si doped or Zn doped is (0.001~0.009) ohm.cm, C doped one is >=1E7 ohm.cm. The GaAs wafer crystal orientation should be (100) and (111). For (100) orientation, it can be 2°/6°/15° off. The EPD of GaAs wafer normally is <5000/cm2 for LED or <500/cm2 for LD or microelectronics.
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Descrição do produto
(arsenieto de gálio) GaAs Wafer
PAM-XIAMEN develops and manufactures compound semiconductor substrates-gallium arsenide crystal and wafer. We has used advanced crystal growth technology, vertical gradient freeze(VGF) and GaAs wafer manufacturing process, established a production line from crystal growth, cutting, grinding to polishing processing and built a 100-class clean room for GaAs wafer cleaning and packaging. Our GaAs wafers include 2~6 inch ingot/wafers for LED, LD and Microelectronics applications. We are always dedicated to improve the quality of currently GaAs wafer substrates and develop large size substrates. The GaAs wafer size offered is in 2”, 3”, 4” and 6”, and the thickness should be 220-700um. Moreover, the GaAs wafer price from us is competitive.
1. GaAs Wafer Specifications
1.1 (GaAs)arsenieto de gálioWafers para aplicações de LED
Item | Especificações | Observações |
Tipo de condução | SC / n-tipo | SC / tipo-p com Zn narcótico Disponível |
Método crescimento | VGF | |
dopante | Silício | Zn disponível |
wafer Diamter | 2, 3 e 4 polegadas | Lingote ou como corte availalbe |
Orientação de cristais | (100) 2 °/ 6 ° / 15 ° fora (110) | Outros misorientation disponíveis |
DO | EJ ou US | |
Concentração transportadora | (0,4 ~ 2,5) E18 / cm3 | |
Resistividade à TA | (1,5 ~ 9) E-3 Ohm.cm | |
Mobilidade | 1500 ~ 3000cm2 / V.s | |
Etch Pit Densidade | <5000 / cm2 | |
Marcação a laser | a pedido | |
Acabamento de superfície | P / E ou P / P | |
Espessura | 220 ~ 450um | |
epitaxia Pronto | Sim | |
Pacote | recipiente de bolacha única ou cassete |
1.2 (GaAs)arsenieto de gálioWafers para aplicações LD
Item | Especificações | Observações |
Tipo de condução | SC / n-tipo | |
Método crescimento | VGF | |
dopante | Silício | |
wafer Diamter | 2, 3 e 4 polegadas | Lingote ou como disponível de corte |
Orientação de cristais | (100) 2 °/ 6 ° / 15 ° fora (110) | Outros misorientation disponíveis |
DO | EJ ou US | |
Concentração transportadora | (0,4 ~ 2,5) E18 / cm3 | |
Resistividade à TA | (1,5 ~ 9) E-3 Ohm.cm | |
Mobilidade | 1500 ~ 3000 cm2 / V.s | |
Etch Pit Densidade | <500 / cm2 | |
Marcação a laser | a pedido | |
Acabamento de superfície | P / E ou P / P | |
Espessura | 220 ~ 350um | |
epitaxia Pronto | Sim | |
Pacote | recipiente de bolacha única ou cassete |
1.3 (GaAs)arsenieto de gálioWafers, semi-isolante para Microeletrônica Applications
Item | Especificações | Observações |
Tipo de condução | Isolante | |
Método crescimento | VGF | |
dopante | C doped | |
wafer Diamter | 2, 3 e 4 polegadas | Ingot available |
Orientação de cristais | (100)+/- 0.5° | |
DO | EJ, US ou entalhe | |
Concentração transportadora | n / D | |
Resistividade à TA | > 1E7 Ohm.cm | |
Mobilidade | > 5000 cm2 / V.s. | |
Etch Pit Densidade | <8000 / cm2 | |
Marcação a laser | a pedido | |
Acabamento de superfície | P / P | |
Espessura | 350 ~ 675um | |
epitaxia Pronto | Sim | |
Pacote | recipiente de bolacha única ou cassete |
1.4 6″ (150mm)(GaAs)arsenieto de gálioWafers, semi-isolante para Microeletrônica Applications
Item | Especificações | Observações |
Tipo de condução | Semi-isolante | – |
crescer Método | VGF | – |
dopante | C doped | – |
Tipo | N | – |
Diamater (mm) | 150 ± 0,25 | – |
Orientação | (100)0°±3.0° | – |
Orientação NOTCH | 〔010〕±2° | – |
NOTCH Deepth (mm) | (1-1.25)mm 89°-95° | – |
Concentração transportadora | please consult our sales team | – |
Resistividade (ohm.cm) | >1.0×107 | – |
Mobilidade (cm2 / vs) | please consult our sales team | – |
Luxação | please consult our sales team | – |
Espessura (mm) | 675 ± 25 | – |
Exclusão de ponta para Bow e urdidura (mm) | please consult our sales team | – |
Curva (m) | please consult our sales team | – |
Urdidura (m) | ≤20.0 | – |
TTV (m) | ≤10.0 | – |
TIR (m) | ≤10.0 | – |
LFPD (m) | please consult our sales team | – |
polimento | P / P Epi-Ready | – |
1.5 2″(50.8mm) LT-GaAs (Low arsenieto Galium Grown-Temperature) Especificações Wafer
Item | Especificações |
Tipo de condução | Semi-isolante |
crescer Método | VGF |
dopante | Sub:C doped / Epi:Undoped |
Tipo | N |
Diamater (mm) | 150 ± 0,25 |
Orientação | (100)0°±3.0° |
Orientação NOTCH | 〔010〕±2° |
NOTCH Deepth (mm) | (1-1.25)mm 89°-95° |
Concentração transportadora | please consult our sales team |
Resistividade (ohm.cm) | >1.0×107 or 0.8-9 x10-3 |
Mobilidade (cm2 / vs) | please consult our sales team |
Luxação | please consult our sales team |
Espessura (mm) | 675 ± 25 |
Exclusão de ponta para Bow e urdidura (mm) | please consult our sales team |
Curva (m) | please consult our sales team |
Urdidura (m) | ≤20.0 |
TTV (m) | ≤10.0 |
TIR (m) | ≤10.0 |
LFPD (m) | please consult our sales team |
polimento | P / P Epi-Ready |
2. GaAs Wafer Market & Application
Gallium arsenide is an important semiconductor material. It belongs to group III-V compound semiconductors and the zinc blende crystal lattice structure, with a lattice constant of 5.65×10-10m, a melting point of 1237°C, and a band gap of 1.4 electron volts. Gallium arsenide can be made into semi-insulating high-resistance materials, which can be used to make integrated circuit substrates, infrared detectors, gamma photon detectors, etc. Because its electron mobility is 5 to 6 times greater than silicon, SI GaAs substrate has been importantly used in the fabrication of microwave devices and high-speed digital circuits. Semiconductor devices fabricated on gallium arsenide have the advantages of high frequency, high temperature, low temperature performance, low noise, and strong radiation resistance, which make the GaAs substrate market enlarge.
3. Test certificate of GaAs wafer can include below analysis if necessary:
1/Surface roughness of Gallium Arsenide including front side and backside(nanometers).
2/Doping concentration of Gallium Arsenide(cm-3)
3/EPD of Gallium Arsenide(cm-2)
4/Mobility of Gallium Arsendie(V.sec)
5/X-ray diffraction analysis (rocking curves) of Gallium Arsenide: Diffraction reflection curve half-width
6/Low-temperature photoluminescence (emission spectra in the range 0.7-1.0 μm) of Gallium Arsenide: The fraction of exciton photoluminescence in the emission spectrum of the near-IR range at a temperature of 4K or 5 K and an optical excitation density of 1 W / cm2
7/Transmission rate or Absorption coefficient: for instant, we can measure absorption coefficient of single crystal undoped GaAs at 1064nm: <0.6423 cm-1, and this corresponds to a transmission minimum of 33.2% for an exactly 6.5mm thick blank at 1064nm.
Remark:
The Chinese government has announced new limits on the exportation of Gallium materials (such as GaAs, GaN, Ga2O3, GaP, InGaAs, and GaSb) and Germanium materials used to make semiconductor chips. Starting from August 1, 2023, exporting these materials is only allowed if we obtains a license from the Chinese Ministry of Commerce. Hope for your understanding and cooperation!