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Item Characteristics Maximum Limit Test Method
1 Dopant P,P+:Boron N,N+:Phosphorus, Arsine
2 Orientation <100>,<111>
3 Resistivity P,N:10-1 ~ 102ohm.cm ASTM F723
4 Resistivity Variation <=±5% For 6'
5 Resistivity Uniformity <=±3% For 6'
6 Layer Thickness 1 to 100 Micrometer ASTM F95, F110
7 Thickness Variation <=±5% For 6'
8 Resistivity Uniformity <=±3% For 6'
9 Stacking Faults 10/cm2 ASTM F1810
10 Slip 5 lines, total length not toexceed semidiameter ASTM F1725 F1726
11 Haze NONE ASTM F523
12 Scratches NONE ASTM F523
13 Craters, Orange Peel, Cracks, Crow's Feet NONE ASTM F523
14 Edge Chips NONE ASTM F523
15 Edge Crown Projection above wafer surface not to exceed 1/3 of Epi layer thickness To be defined
16 Foreign Matter NONE ASTM F523
17 Back Surface Contamination NONE ASTM F523
18 Point defects SEMI Standard ASTM F523

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Simgui gains the strength from its US-based parter, More Technologies,the acknowledged specialist in epitaxial technology. Simgui is benefiting from close collaboration with such leading substrate suppliers at home and abroad as Forrotec, Gritek and etc. Combing the effective, stable supply channels and its powerful, flexible processing ablility, Simgui has distinguished itself among its domestic and oversea competitors.
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