GaN on Sapphire for RF

PAM XIAMEN offers GaN on Sapphire for RF.

1.1 GaN HEMT Structure on Sapphire for RF Application

Wafer size 2”, 3”, 4”, 6”
AlGaN/GaN HEMT structure Refer 1.2
Carrier density 6E12~2E13 cm2
Hall mobility /
XRD(102)FWHM /
XRD(002)FWHM /
Sheet Resistivity /
AFM RMS (nm)of 5x5um2 <0.25nm
Bow(um) <=35um
Edge exclusion  <2mm
siN passivation layer  0~30nm
u-GaN cap layer  /
Al composition 20-30%
In composition 17% for InAlN
AlGaN barrier layer  20~30nm 
AlN spacer  /
GaN buffer layer(um) /
GaN channel /
Fe doped GaN buffer /
Nudeation /
Substrate material Sapphire substrate


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Found in 1990, Xiamen Powerway Advanced Material Co., Ltd (PAM-XIAMEN) is a leading manufacturer of semiconductor material in China. PAM-XIAMEN develops advanced crystal growth and epitaxy technologies, manufacturing processes, engineered substrates and semiconductor devices. PAM-XIAMEN’s technologies enable higher performance and lower cost manufacturing of semiconductor wafer.

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