Welcome to TradeKey, Join Free | Sign In

or
❯
Contact Us
❯
BOOK A CALL
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

Get Verified Buyers & Suppliers

Avail Free Consultation

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

no thanks


Buy polycrystal silicon wafers

  • China China  
  • Quantity Required: 300MT
  • Last Updated:
    Posted on: 12 Nov 2024

  • Destination Port: Jiangsu,China
Buyer Information

RFQ Details

A. Solar grade polysilicon
1. Si Purity:
2. Boron<0.20 ppba
3. Donor<0.90 ppba
4. Carbon<1.00ppba
5. Total bulk metals<30.00ppba
6. Total surface metals<30.00ppba
7. Size:25mm-250mm
8. Poly Type:P-type
9. Resistivity>0.50ohmcm

B. Semi grade scrap silicon chip
Technical requirements:
1. Semi grade scrap silicon chips
2. Chips should be in ark
3. The thickness of the chip is not less than 400 um
4. Type:P-type
5. Resistivity>0.50ohmcm
C. Polysilicon in small pieces
Technical requirements:
1.N-type ,Resistivity>50ohmcm,Carbon<5*1016 /cm3 ,Oxygen<5*1017/cm3
2.Size=4mm
3.Oxidized layers and infusible materials should not be found, best to be clean
D. CZ POLY
Technical requirements:
1. Donor:N-type,Resistivity>100ohmcm
Boron:P-type,Resistivity>1000ohmcm
Life time of a few carriors >100us
Carbon<5*1016 /cm3
Oxygen<5*1017/cm3
2. Chunk size>30mm
3. Oxidized layers and infusible materials should not exist, best to be clean materials
E. Zone refined top-and-tail silicon
Technical requirements:
1.N-type, Resistivity 0.5-50ohmcm, Life time of a few carriors >100us
2.Chunk size>30mm
3.Air holes should not be included, no contamination by the contact with the wire loop and moreover no drift silicon and infusible materials be left in the process of zone refining
F. IC material(CZ silicon tops-and-tails), best to be clean
1. N-type, Resistivity>10ohmcm
2. P-type, Resistivity>0.5ohmcm
3. Chunk size>30mm,chip thickness>0.5mm
4. No air holes and moreover no infusible materials should be found


People who quote for this RFQ also looked at

Refine by popular tags

silicon polycrystal polysilicon

Recommended RFQs

Connect with us:

Copyright © 2024 TradeKey.com

Created in 2.34688 seconds