or
Book call on your favorite time

By Signing Up. I agree to TradeKey.com Terms of Use, Privacy Policy, IPR and receive emails related to our services

Amazon Services

Buy Granules

  • China China  
  • Last Updated:
    Posted on: 22 Jun 2021

RFQ Details

"Our company Jiaxing Mingtong Photovoltaic Co., Ltd from Zhejiang province, China.

We specialize in producing solar silicon chips; our technique is based on Jiaxing Research Institute for physics, Chinese Academy of Sciences. We have a great demand of crystalline silicon, in the current phase, our consumption is 20 tons/month, and annual consumption is around 250 tons, in the next three years our consumption for the crystalline silicon material will reach 500 tons per year finally.

Our requirement: silicon doped in all of materials must be not less than 99.9999%.

A. Polycrystalline silicon chunks/granules
1. Si (purity)> 99.9999% (6N)
2. Boron doped : d 0.20ppba

3. Phosphorus doped: d 0.90 ppba
4. Metal doped: d 30.00 ppba
5. Metal surfce doped: d 30.00 ppba
6. Length: 15-250 mm.
7. Type: P- type.
8. Resistivity:>0.50 *****

9. Carbon < 250 ppba


B. Full/broken IC grade silicon wafer

1. Si (purity)> 99.9999%(6N)

2. Size: Diameter >= 50mm

3. Thickness: > 400&#65533;m

4. Type:N-type (resitivity>1.0 *****)< 10%

P-type (resitivity>0.5 *****)> 90%

5. Bare( pattern, coat or film is ok )
6. Without metal diffusion in the wafers

C. IC grade tops/tails and pot scrap
1. Si (purity)> 99.9999% (6N)
2. Washing-free is better
3. Type: N-type( resitivity>1.0 *****)< 10%
P-type (resitivity>0.5 *****)> 90%
4. Without infusible substances or air bubbles
***** d5*10-16 atoms/cm3
6. Oxygen d10-18 atoms/cm3

D. Solar grade mono-crystalline wafer
1. Si (purity)> 99.9999% (6N)

2. Thickness: > 200 &#65533;m
3. Size: Diameter >= 50 mm

4. Type: P- type

5. Resistivity: >0.50 ohm.

6. Without metal diffusion in the wafers
7.Bare(no pattern, coat or film)


We hope to build long-term and stable business relationship with your company, please quote your best price CIF Shanghai (we prefer) or FOB.

Your quickly response will be highly appreciated!

Annie Shen"