quienes somos

como el principal fabricante de material semiconductor compuesto en China. pam-xiamen desarrolla avanzadas tecnologías de epitaxia y crecimiento de cristales, desde la primera generación de obleas de germanio, arseniuro de galio de segunda generación con crecimiento de sustratos y epitaxia en materi7
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después de más de 20 años de acumulación y desarrollo, nuestra compañía tiene una ventaja obvia en innovación tecnológica y grupo de talentos. en el futuro, necesitamos acelerar el ritmo de acción real para proporcionar a los clientes mejores productos y servicios
doctor chan -Ceo de xiamen powerway material avanzado co., ltd

nuestros productos

láser azul

plantillas gan

Los productos de plantilla de pam-xiamen consisten en capas cristalinas de nitruro de galio (gan), nitruro de aluminio (aln), nitruro de aluminio y galio (algan) y nitruro de indio y galio (ingan), que se depositan en sustratos de zafiro. Los productos de plantilla de carburo de silicio o silicon.pam-xiamen permiten tiempos de ciclo de epitaxia 20-7

gan en silicio

sustrato de gan independiente

pam-xiamen ha establecido la tecnología de fabricación para la oblea de substrato gan independiente (de nitruro de galio), que es para uhb-led y ld. cultivado por tecnología de epitaxia en fase de vapor de hidruro (hvpe), nuestro sustrato gan tiene baja densidad de defectos.

gaas cristal

obleas de gaas (arseniuro de galio)

pwam desarrolla y fabrica sustratos semiconductores compuestos: cristal de arseniuro de galio y wafer.we ha utilizado tecnología avanzada de crecimiento de cristales, congelación de gradiente vertical (vgf) y tecnología de procesamiento de obleas gaas, estableció una línea de producción de crecimiento de cristales, corte, pulido para procesamiento 7

cristal sic

epitaxy sic

proporcionamos epitaxy sic personalizada de película delgada (carburo de silicio) sobre sustratos de 6h o 4h para el desarrollo de dispositivos de carburo de silicio. sic epi wafer se utiliza principalmente para diodos schottky, transistores de efecto de campo de semiconductores de óxido de metal, transistores de efecto de campo de unión, transisto7

cristal sic

sustrato sic

pam-xiamen ofrece obleas de carburo de silicio semiconductoras, 6h sic y 4h sic en diferentes grados de calidad para el investigador y fabricantes de la industria. hemos desarrollado la tecnología de crecimiento de cristal sic y la tecnología de procesamiento de obleas de cristal sic, estableció una línea de producción para el sustrato sic del fabr7

gan expitaxy

oblea epitaxial led basada gan

La oblea epitaxial con base en gan (nitruro de galio) de pam-xiamen es para el ultra alto brillo en diodos emisores de luz azul y verde (led) y diodos láser (ld).

gan hemt epitaxy

gan hemt oblea epitaxial

Los dobladillos de nitruro de galio (transistores de alta movilidad de electrones) son la próxima generación de tecnología de transistor de potencia rf. Gracias a la tecnología gan, pam-xiamen ahora ofrece algan / gan hemt epi wafer en zafiro o silicio, y algan / gan en plantilla de zafiro .

cristal sic

reclamo de oblea sic

pam-xiamen puede ofrecer los siguientes servicios de reclamo sic reclaim.

Por qué elegirnos

  • soporte de tecnología gratuito y profesional

    puede obtener nuestro servicio de tecnología gratuito desde la consulta hasta el servicio posterior basado en nuestro Más de 25 experiencias en la línea de semiconductores.

  • buen servicio de ventas

    nuestro objetivo es cumplir con todos sus requisitos, no importa cuán pequeñas sean las órdenes y cuán difíciles son las preguntas pueden ser, para mantener un crecimiento sostenido y rentable para cada cliente a través de nuestros productos calificados y un servicio satisfactorio.

  • Más de 25 años de experiencia

    con más que 25 + años experiencias en el campo de material semiconductor compuesto y en el negocio de exportación, nuestro equipo puede asegurarle que podemos entender sus requisitos y tratar su proyecto profesionalmente.

  • calidad confiable

    la calidad es nuestra primera prioridad. pam-xiamen ha sido iso9001: 2008 , posee y comparte cuatro modernas facories que pueden proporcionar una amplia gama de productos calificados para satisfacer las diferentes necesidades de nuestros clientes, y cada pedido tiene que ser manejado a través de nue7

"Hemos estado utilizando las obleas epidérmicas de powerway para algunos de nuestros trabajos. Estamos muy impresionados con la calidad de la epi".
james s.speck, departamento de materiales de la universidad de california
2018-01-25
"Queridos equipos de pam-xiamen, gracias por su opinión profesional, el problema fue resuelto, estamos muy contentos de ser su compañero"
raman k. chauhan, seren fotónica
2018-01-25
"gracias por la respuesta rápida de mis preguntas y el precio competitivo, es muy útil para nosotros, ordenaremos de nuevo pronto"
markus sieger, universidad de ulm
2018-01-25
"Las obleas de carburo de silicio han llegado hoy, ¡y estamos muy contentos con ellas! ¡Felicitaciones a su equipo de producción!"
dennis, universidad de exeter
2018-01-25

las universidades y empresas más famosas del mundo confían en nosotros

últimas noticias

Two inch GaN substrates fabricated by the near equilibrium ammonothermal (NEAT) method

2019-08-19

This paper reports two inch gallium nitride (GaN) substrates fabricated from bulk GaN crystals grown in the near equilibrium ammonothermal method. 2'' GaN wafers sliced from bulk GaN crystals have a full width half maximum of the 002 X-ray rocking curve of 50 arcsec or less, a dislocation density of mid-105 cm−2 or less, and an electron density of about 2 × 1019 cm−3. The high electron density is attributed to an oxygen impurity in the crystal. Through extensive surface preparation, the Ga surface of the wafer shows an atomic step structure. Additionally, removal of subsurface damage was confirmed with grazing angle X-ray rocking curve measurements from the 114 diffraction. High-power p–n diode structures were grown with metalorganic chemical vapor deposition. The fabricated devices showed a breakdown voltage of over 1200 V with sufficiently low series resistance. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at s...

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Enhancement of the quality of InAsSb epilayers using InAsSb graded and InSb buffer layers grown by hot wall epitaxy

2019-08-12

We have investigated the structural and electrical properties of InAsxSb1−x epilayers grown on GaAs(0 0 1) substrates by hot wall epitaxy. The epilayers were grown on an InAsSb graded layer and an InSb buffer layer. The arsenic composition (x) of the InAsxSb1−x epilayer was calculated using x-ray diffraction and found to be 0.5. The graded layers were grown with As temperature gradients of 2 and 0.5 °C min−1. The three-dimensional (3D) island growth due to the large lattice mismatch between InAsSb and GaAs was observed by scanning electron microscopy. As the thicknesses of the InAsSb graded layer and the InSb buffer layer are increased, a transition from 3D island growth to two-dimensional plateau-like growth is observed. The x-ray rocking curve measurements indicate that full-width at half-maximum values of the epilayers were decreased by using the graded and buffer layers. A dramatic enhancement of the electron mobility of the grown layers was observed by Hall effect measurements. So...

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Quality Variation of ZnSe Heteroepitaxial Layers Correlated with Nonuniformity in the GaAs Substrate Wafer

2019-08-06

ZnSe layers are grown heteroepitaxially on substrates cut from a LEC-grown, undoped semi-insulating GaAs(100) wafer along the diameter parallel to the [001] axis. The intensities of free-exciton photoluminescence and X-ray diffraction from the ZnSe layers show an M-shaped profile along the GaAs wafer diameter, and are inversely correlated with the etch-pit-density distribution of the GaAs wafer. This observation gives, for the first time, experimental evidence that the quality of ZnSe heteroepitaxial layers grown by recent epitaxial techniques can be limited by the quality of GaAs substrates. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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Highly boron-doped germanium layers on Si(001) grown by carbon-mediated epitaxy

2019-07-29

Smooth and fully relaxed highly boron-doped germanium layers were grown directly on Si(001) substrates using carbon-mediated epitaxy. A doping level of  was measured by several methods. Using high-resolution x-ray diffraction we observed different lattice parameters for intrinsic and highly boron-doped samples. A lattice parameter of a Ge:B = 5.653 Å was calculated using the results obtained by reciprocal space mapping around the (113) reflection and the model of tetragonal distortion. The observed lattice contraction was adapted and brought in accordance with a theoretical model developed for ultra-highly boron-doped silicon. Raman spectroscopy was performed on the intrinsic and doped samples. A shift in the first order phonon scattering peak was observed and attributed to the high doping level. A doping level of  was calculated by comparison with literature. We also observed a difference between the intrinsic and doped sample in the range of second order phonon scattering. ...

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Epitaxial CdS Layers Deposited on InP Substrates

2019-07-22

The CdS layers were deposited on InP substrates by using the (H2–CdS) vapor growth technique. The single crystal layers of hexagonal CdS were obtained on InP (111), (110) and (100) with the following heteroepitaxial relationships; (0001) CdS//(111) InP and [bar 12bar 10] CdS//[01bar 1] InP, (01bar 13) CdS//(110) InP and [bar 2110] CdS//[bar 110] InP, (30bar 34) CdS//(100) InP and [bar 12bar 10] CdS//[01bar 1] InP. The CdS layers deposited on InP (bar 1bar 1bar 1) were identfied in terms of the twinned hexagonal crystals, twin planes of which were nearly parallel to (30bar 3bar 4) and its crystallographic equivalents. The compositional gradients were observed at the interface of the deposits and the substrates. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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Absorption and dispersion in undoped epitaxial GaSb layer

2019-07-16

In this paper, we present the results of a theoretical and experimental investigation into the refractive index and absorption, at room temperature, of a 4 μm-thick undoped epitaxial layer of GaSb deposited on a GaAs substrate. A theoretical formula for optical transmission through an etalon was derived, taking into account the finite coherence length of the light. This formula was used to analyse the measured transmission spectra. The refractive index was determined in a wide spectral range, between 0.105 eV and 0.715 eV. The absorption was determined for photon energies between 0.28 eV and 0.95 eV. An Urbach tail was observed in the absorption spectrum, as well as a constant increase in absorption in the spectral region above the band gap. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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Study on Cd vacancy in CdZnTe Crystal by Positron Annihilation Technology

2019-07-08

Cd vacancies in cadmium zinc telluride(CdZnTe) crystals have an important effect on the crystal properties. In this paper, position distribution and concentration change of Cd vacancy in CdZnTe crystal grown by the temperature gradient solution growth (TGSG) were investigated by positron annihilation technology (PAT), which was based on the potential energy distribution and probability density of the positron in the crystal. The results showed that, the density of Cd vacancy increased obviously from the first-to-freeze to stable growth of the ingots, while decreased along the radial direction of the ingots. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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GaN substrate and GaN homo-epitaxy for LEDs: Progress and challenges

2019-07-03

After a brief review on the progresses in GaN substrates by ammonothermal method and Na-flux method and hydride vapor phase epitaxy (HVPE) technology, our research results of growing GaN thick layer by a gas flow-modulated HVPE, removing the GaN layer through an efficient self-separation process from sapphire substrate, and modifying the uniformity of multiple wafer growth are presented. The effects of surface morphology and defect behaviors on the GaN homo-epitaxial growth on free standing substrate are also discussed, and followed by the advances of LEDs on GaN substrates and prospects of their applications in solid state lighting. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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The contact and photoconductivity characteristics between Co doped amorphous carbon and GaAs: n-type low-resistivity and semi-insulated high-resistivity GaAs

2019-06-17

The Co doped amorphous carbon films (a-C:Co), deposited by pulsed laser deposition, show p-n and ohmic contact characteristics with n-type low resistivity GaAs (L-GaAs) and semi-insulated high-resistivity GaAs (S-GaAs). The photosensitivity enhances for a-C:Co/L-GaAs, while inverse decreases for a-C:Co/S-GaAs heterojunction, respectively. Furthermore, the enhanced photosensitivity for the a-C:Co/L-GaAs/Ag heterojunction also shows deposition temperature dependence behavior, and the optimum deposition temperature is around 500 °C. Source:IOPscience For more information, please visit our website: www.semiconductorwafers.net, send us email at sales@powerwaywafer.com or powerwaymaterial@gmail.com

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Realization and characterization of thin single crystal Ge films on sapphire

2019-06-13

We have successfully produced and characterized thin single crystal Ge films on sapphire substrates (GeOS). Such a GeOS template offers a cost-effective alternative to bulk germanium substrates for applications where only a thin (<2 µm) Ge layer is needed for device operation. The GeOS templates have been realized using the Smart CutTM technique. 100 mm diameter GeOS templates have been manufactured and characterized to compare the Ge thin film properties with bulk Ge. Surface defect inspection, SEM, AFM, defect etching, XRD and Raman spectroscopy were all performed. The results obtained for each characterization technique used have highlighted that the material properties of the transferred thin Ge film were very close to the ones of a bulk Ge reference. An epitaxial AlGaInP/GaInP/AlGaInP double heterostructure was grown atop the GeOS template to demonstrate the template's stability under the conditions encountered in typical device realization. The photoluminescent behavior of thi...

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