Following materials are available now. (Junel 18, 2010)
If you are interested in the materials, please do not hesitate to contact us!→　

①12 inch silicon wafers Coinroll A grade
（No guarantee for particles・A few scraches are on the surface）

②12 inch silicon wafers Coinroll B grade
（No guarantee for particles･Surface condiion is not good as Coinrall A）

③12 inch, orienateion <110>
（No guarantee for particles･packed in a clean case which is in a plastic bag）
























④8 inch silicon wafers


















（No gurarantee for particles・packed in a clean case which is in a plastic bag）

⑥Single-crystalline silicon block






































































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TEL:+81-3-3262-4296 FAX:+81-3-3262-4048
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Monocrystaline single silicon ingot
No.: Diameter(mm) Type Orientation Res Min. Res Max weight(kg)
1 201+/-1 P <100>
 1 20.0 approx. 1000
2 201+/-1 P <100> 20.0 100.0 approx. 170
COINROLL A GRADE wafer
No.: Dia Thick Finish Type Oriantation Res. Film OF or NT Laser mark Remark Qty
1 12 750-800 DSP N Any 1up None Notch With laser mark:12pcs Without:1pcs 13
2 12 750-800 DSP N Any 1-100 None Notch With laser mark 107
3 12 750-800 DSP N Any 1-100 None Notch Without laser mark 14
5 12 750-800 DSP P Any 1-100 None Notch With laser mark 3900
6 12 750-800 DSP P Any 1-100 None Notch Without laser mark 380
7 12 750-800 DSP P Any 1up None Notch With laser mark 485
8 12 750-800 DSP Any Any 1up None Notch With laser mark 1016
9 12 750-800 DSP Any Any Below 1 None Notch With laser mark 802
DSP=Double side polished
COINROLL B GRADE wafer
No.: Dia Thick Finish Type Oriantation Res. Film OF or NT Laser mark Remark Qty
1 12 690-800 DSP P Any 1up None Notch Any 282
2 12 690-800 DSP N Any 1up None Notch Any 5
3 12 690-800 DSP Any Any 1up None Notch Any 798
4 12 690-800 SG Any Any 1up None Notch Any 3
*SG=surface grinding
12inch <110> Sealed packaged wafer
No.: Dia Thick Finish Type Oriantation Res. Film OF or NT Laser mark Remark Qty
1 12 775+/-25 DSP P <110> 1-100 None Notch Any 50
2 12 775+/-25 DSP P <110> 0.005-0.01 EPI Notch With laser mark EPI:Film thick;1.2-2.9um Res;1.2-2.9ohm 175
*25pcs in 1 casette
Multi crystaline silicon block
No.: Size(mm) Type Resistivity Purity Qty(kg)
1 534 x 635 x 176 P Below 0.02 ohm cm 7N approx 139