CZ Silicon Wafer

Description

CZ Single Crystal Silicon Wafer is sliced from single crystal silicon ingot pulled by Czochralski CZ growth method, which is most widely used for silicon crystal growth of large cylindrical ingots used in the electronics industry to make semiconductor devices. In this process, a slim seed of crystal silicon with precise orientation tolerances is introduced into the molten bath of silicon whose temperature is precisely controlled. The seed crystal is slowly pulled upwards from the melt at a very controlled rate, the crystalline solidification of atoms from a liquid phase occurs at an interface, the seed crystal and the crucible are rotated in opposite directions during this withdrawal process, creating a large single crystal silicon with the seed’s perfect crystalline structure.

Thanks to the magnetic field applied to the standard CZ ingot pulling, Magnetic-field-induced Czochralski MCZ single crystal silicon is of comparatively lower impurity concentration, lower oxygen level and dislocation, and uniform resistivity variation which performs well in high technology electronic components and devices fabrication in electronic or photovoltaic industries.

Delivery

CZ or MCZ Single Crystal Silicon Wafer n-type and p-type conductivity at Western Minmetals (SC) Corporation can be delivered in size of 2, 3, 4, 6, 8 and 12 inch diameter (50, 75, 100, 125, 150, 200 and 300mm), orientation <100>, <110>, <111> with surface finish of lapped, etched and polished in package of foam box or cassette with carton box outside.

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Technical Specification

CZ Silicon Wafer

CZ Single Crystal Silicon Wafer is the basic material in the production of integrated circuits, diodes, transistors, discrete components, used in all types of electronic equipment and semiconductor devices, as well as substrate in epitaxial processing, SOI wafer substrate or semi-insulating compound wafer fabrication, especially large diameter of 200mm, 250mm and 300mm are optimal for manufacturing ultra highly integrated devices. Single Crystal Silicon is also used for solar cells in large quantities by the photovoltaic industry, which almost perfect crystal structure yields the highest light-to-electricity conversion efficiency.

No.	Items	Standard Specification
1	Size	2"	3"	4"	6"	8"	12"
2	Diameter mm	50.8±0.3	76.2±0.3	100±0.5	150±0.5	200±0.5	300±0.5
3	Conductivity	P or N or un-doped
4	Orientation	<100>, <110>, <111>
5	Thickness μm	279, 381, 425, 525, 575, 625, 675, 725 or as required
6	Resistivity Ω-cm	≤0.005, 0.005-1, 1-10, 10-20, 20-100, 100-300 etc
7	RRV max	8%, 10%, 12%
8	Primary Flat/Length mm	As SEMI standard or as required
9	Secondary Flat/Length mm	As SEMI standard or as required
10	TTV μm max	10	10	10	10	10	10
11	Bow & Warp μm max	30	30	30	30	30	30
12	Surface Finish	As-cut, L/L, P/E, P/P
13	Packing	Foam box or cassette inside, carton box outside.

Symbol	Si
Atomic Number	14
Atomic Weight	28.09
Element Category	Metalloid
Group, Period, Block	14, 3, P
Crystal structure	Diamond
Color	Dark gray
Melting Point	1414°C, 1687.15 K
Boiling Point	3265°C, 3538.15 K
Density at 300K	2.329 g/cm³
Intrinsic resistivity	3.2E5 Ω-cm
CAS Number	7440-21-3
EC Number	231-130-8

CZ or MCZ Single Crystal Silicon Wafer n-type and p-type conductivity at Western Minmetals (SC) Corporation can be delivered in size of 2, 3, 4, 6, 8 and 12 inch diameter (50, 75, 100, 125, 150, 200 and 300mm), orientation <100>, <110>, <111> with surface finish of as-cut, lapped, etched and polished in package of foam box or cassette with carton box outside.