M-Plane GaN Grown on m-Plane Sapphire by Hydride Vapor Phase Epitaxy
M-plane GaN epilayers have been directly grown on m-plane sapphire substrates by hydride vapor phase epitaxy using a low temperature GaN nucleation layer. The m-plane GaN surface is optically smooth and mirror-like, with rms [...]
2013-04-12meta-author
PAM XIAMEN offers 2″ Silicon Oxide Wafer
2″ Silicon Oxide Wafer
Diameter (mm): 50mm
Grade: Prime
Growth: CZ
Type/Dopant: any
Orientation: 100
Resistivity (Ohm-cm): any
Thickness (µm): 500±25μm
Tolerance (µm): any
Surface Finish: SSP
Flats: SEMI-Std.
TTV < (µm): any
Bow < (µm): any
Warp < [...]
2020-04-24meta-author
In this study, a nano-columnar low-temperature (LT) GaN buffer was used to reduce the wafer bowing of a GaN layer grown on a sapphire substrate. A significant reduction in the extent of wafer bowing was observed for the GaN layer for the preserved nano-columnar LT GaN [...]
PAM XIAMEN offers Tatalum Metal Substrate & Foil ( Polycrystalline ).
General Properties for Tantalum
Symbol Ta
Atomic Number 73
Atomic Weight: 180.95
Density: 16.69 g/cm3
Melting Point: 2996 °C
Boiling Point: 5425+/-100 °C
Ta – Tantalum Polycrystalline Metallic Foil: 0.05mm thick x 200mm Width x 400 [...]
2019-05-20meta-author
PAM XIAMEN offers 2″ Diameter Wafer-2″ wafers (100).
2″ Diameter Wafer
2″ wafers (100)
2“ Undoped Ge (100)
Ge Wafer (100) Undoped, 2″ dia x 0.5 mm, 1SP, resistivities: >50 ohm-cm
Ge Wafer (100) Undoped, 2″ dia x 0.5 mm, resistivities: >50 ohm-cm, 2SP [...]
2019-04-23meta-author
PAM-XIAMEN offers 4inch Semi-insulating GaAs Substrate with good flatness such as TTV<=3UM, BOW<=4um, and WARP<5um, TIR(Total Indicated Runout)<=3um, LFPD(Local Focal Plane Deviation)<=1um, LTV(Local Thickness Variation)<=1.5um, which can be used for Microelectronic application.
1. Specification of Semi-insulating GaAs Substrate
1.1 Semi-insulated GaAs Substrate PAM190425-GAAS
Parameter
Customer’sRequirements
Guaranteed/Actual Values
UOM
GrowthMethod:
VGF
VGF
—
ConductType:.
S-I-N
S-I-N
—
Dopant:
c doped
c [...]
2020-05-26meta-author