quem nós somos

como o fabricante principal de material composto semicondutor na China. pam-xiamen desenvolve tecnologias avançadas de crescimento de cristais e epitaxia, variam desde a primeira geração de bolacha de germânio, arsenieto de gálio de segunda geração com crescimento de substrato e epitaxia em materiai8
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Após mais de 20 anos de acumulação e desenvolvimento, nossa empresa tem uma vantagem óbvia em inovação tecnológica e pool de talentos. no futuro, precisamos acelerar o ritmo de ação real para oferecer aos clientes melhores produtos e serviços
doctor chan -CEO de xiamen powerway material avançado co., ltd

nossos produtos

laser azul

modelos de gan

Os produtos modelo de pam-xiamen consistem em camadas cristalinas de nitreto de gálio (gan), nitreto de alumínio (aln), nitreto de alumínio e gálio (algan) e nitreto de indio e gálio (ingan), que são depositados em substratos de safira, O carboneto de silício ou os produtos de modelo de silicon.pam-xiamen permitem 20-50% de tempos de ciclo de epita8

Gan on Silicon

substrato de gancho autônomo

pam-xiamen estabeleceu a tecnologia de fabricação de bolacha de substrato de gancho independente (galão de nitreto), que é para uhb-led e ld. cultivado por tecnologia de epitaxia em fase de vapor de hidreto (hvpe), nosso substrato de ganhado tem baixa densidade de defeito.

cristal de gaas

Gaas (arsenieto de gálio) wafers

Pwam desenvolve e fabrica substratos semicondutores compostos - cristal de arsenieto de gálio e wafer.we usamos tecnologia avançada de crescimento de cristais, tecnologia de processamento de gradiente vertical (vgf) e wafer de gaas, estabeleceu uma linha de produção de crescimento de cristal, corte, moagem para processamento de polimento e construí8

cristal sic

epitaxia sica

nós fornecemos epitaxia sica customizada de película fina (carboneto de silício) em substratos de 6h ou 4h para o desenvolvimento de dispositivos de carboneto de silício. A bolacha sic epi é usada principalmente para diodos schottky, transistores de efeito de campo semicondutor de óxido de metal, transistores de efeito de campo de junção, transisto8

cristal sic

substrato sic

pam-xiamen oferece wafers de carboneto de silício semicondutor, 6h sic e 4h sic em diferentes graus de qualidade para pesquisador e fabricantes da indústria. Desenvolvemos tecnologia de crescimento de cristal sic e tecnologia de processamento de bolacha de cristal sic, estabeleceu uma linha de produção para o substrato Sic do fabricante, que é apli8

gan expataxy

Bolacha epitaxial com base de gan com base

A bolacha epitaxial conduzida a base de gancho pam-xiamen (nitruro de gálio) é para diodos emissores de luz azul e verde de alto brilho (led) e diodos laser (ld).

epitaxia ganada

Bolacha Epitaxial Gan Hemt

Os transdutores de nitrogênio de gálio (gan) (transistores de alta mobilidade de elétrons) são a próxima geração de tecnologia de transistores de potência rf. Com a tecnologia gan, Pam-xiamen agora oferece alpina epi wafer em safira ou silício e algan / gan em modelo de safira .

cristal sic

sic wafer reclaim

pam-xiamen é capaz de oferecer os seguintes serviços de wafer de sic reclaim.

Porque escolher-nos

  • Suporte tecnológico gratuito e profissional

    Você pode obter o nosso serviço de tecnologia gratuita do inquérito para depois do serviço, com base no nosso Mais de 25 experiências na linha de semicondutores.

  • bom serviço de vendas

    nosso objetivo é atender a todos os seus requisitos, não importa quão pequenas encomendas e quão difíceis questões podem ser, para manter um crescimento sustentado e lucrativo para cada cliente através de nossos produtos qualificados e atendimento satisfatório.

  • Experiências de mais de 25 anos

    Com mais de 25 + anos experiências no campo composto de materiais semicondutores e negócios de exportação, nossa equipe pode assegurar-lhe que podemos entender seus requisitos e lidar com o seu projeto profissionalmente.

  • qualidade confiável

    A qualidade é nossa primeira prioridade. pam-xiamen foi iso9001: 2008 , possui e compartilha quatro fábricas modernas que podem fornecer uma grande variedade de produtos qualificados para atender às diferentes necessidades de nossos clientes, e cada ordem deve ser tratada através de nosso rigoroso s8

"Nós estamos usando as wafers de epi do powerway para alguns de nossos trabalhos. Estamos muito impressionados com a qualidade do epi"
james s.speck, departamento de materiais university of california
2018-01-25
"queridas equipes pam-xiamen, obrigada pela opinião da sua profissão, o problema foi resolvido, estamos tão felizes em ser seu parceiro"
raman k. Chauhan, serena fotônica
2018-01-25
"Obrigado pela resposta rápida das minhas perguntas e do preço competitivo, é muito útil para nós, vamos pedir novamente em breve"
markus sieger, university of ulm
2018-01-25
"as bolachas de carboneto de silício chegaram hoje e ficamos muito contentes com elas! aprovação para sua equipe de produção!"
dennis, universidade de exeter
2018-01-25

as universidades e empresas mais famosas do mundo confiam em nós

últimas notícias

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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