Silicon Wafer

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Product Details

Place of Origin:	Hebei in China

Specifications

1. Wafer Diameter: (125 x 125)+/-0,4mm

2. Dimensions Tolerance: +/-0,4mm

3. Thickness of wafer, measured in the center of wafer: 190+/- 10μm, ≥185 μm

4. TTV: not more than 25 μm

5. Saw mark: ≤15 μm, invisible by eyes

6. Camber: ≤30 μm

7. Arc width departure(Big and small angle): ≤2mm in 45°

8. Surface Quality: No crack, no obvious saw mark, without obvious tactility, no pit, no V type gap, no hole, no glue left, surface cleaned, no abnormal spot, no stain.

9. Notch: not allowed

10. Tiny luminance Edge: Width ≤1/3 of wafer thickness; Length≤1/2 of wafer dimension

11. Edge defect: Edge defect width ≤0.2mm; extension less than 0.5mm; with total quantity ≤2, distance≥30mm

Service Process

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Service Guarantee

Free Service Charge

ECVV doesn't charge any service fee to Buyers for buying this product.
ECVV Supply

ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.
Product Quality Commitment

ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.
Deposit Service Commitments

In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.