2 inch Silicon Wafer

Specific Information

A silicon wafer is a thin slice of high-purity silicon used as the base material for semiconductor devices and integrated circuits. It offers high flatness and low defect density, and is widely used in ICs, power devices, sensors, and optoelectronic applications.

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specification
Properties

Item	Silicon Substrate（2~12inch）
Diameter	50.8mm	76.2mm	100mm	150mm	200mm	300.mm
Thickness	400μm	400μm	500μm	625μm	725μm	775μm
Surface Orientation	<100> ∣ <111> ∣ <110>
Crystal Growth Method	CZ ∣ FZ
Dopant	N-type(Si-doping/As-doping/Sb-doping)		P-type(B-Doping)		Intrinsic
Primary Flat Length	16mm	22mm	32.5mm	47.5mm	Notch	Notch
Resistivity	0.001-0.005ohm-cm		1-100ohm-cm		＞10000ohm-cm
Front Surface Finish	Epi-polished,Ra<0.5nm
Back Surface Finish	SSP:Etch; DSP:Epi-polished,Ra<0.5nm
TTV	≤8μm	≤10μm	≤10μm	≤20μm	≤30μm	≤30μm
BOW	≤10μm	≤12μm	≤15μm	≤25μm	≤40μm	≤45μm
WARP	≤12μm	≤15μm	≤20μm	≤30μm	≤60μm	≤60μm
Edge Exclusion	≤2 mm				≤3 mm

Customization specifications：
* Various sizes and shapes such as 10*10mm
* Various thicknesses:0.1~20mm
* Various surface roughness such as slicing,lapping,polishing.
* Silicon crystal ingots are available.

Silicon wafers possess excellent electrical properties, such as precisely controlled resistivity and carrier concentration, ensuring stable and reliable device performance.
They have superior thermal properties, including high thermal conductivity and good thermal stability, which help with heat dissipation and maintaining chip performance.
Additionally, they exhibit outstanding mechanical properties, such as high hardness, excellent flatness, and low defect density, enabling precise processing and thinning.

Growth Method	CZ/FZ
Crystal Structure	Diamond
Lattice Constant(nm)	a=5.4305Å
Density(g/cm3)	2.329
Melting point	1410℃
Mohs Hardness(mohs)	7
Dielectric Constant	11.8
Band Gap(eV)	1.1
Breakdown Electrical Field ((MV/cm))	0.3
Thermal Conductivity(n-type）(W/cm.K )	1.48
Electron Mobility(cm2·V-1·s-1)	1480
Thermal Expansion	2.6×10^-6 /℃
Refractive Index	3.5

2 inch Silicon Wafer

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