18″ Silicon Wafers

Silicon Valley Microelectronics does not carry stock of 450mm wafers. 450mm silicon wafers are the newest and largest size wafers available on the market, capable of making 5 times more chips than the more standard 200mm wafers. If you require these wafers, SVM can custom manufacture them to your specifications, or use one of our manufacturing partners to procure smaller quantities. Please contact an SVM sales representative for more information on these wafers.

450mm SEMI Standard Silicon Wafer Specifications:

450mm +/- 0.10mm
Diameter450mm +/-0.10mm
Growth MethodCz
NotchSEMI Standard
Notch Depth1.00 + 0.25 – 0.00mm
Notch Angle90°+5°-1°
Notch Orientation±1°
Oxygen Concentration16.416 – 18.137 ppma
LasermarkBackside SEMI Standard T7/M12
Thickness900 – 950μm
Resistivity0.005 – 100 Ω-cm
Warp≤ 30μm
GBIR≤ 3μm
SFQR≤ 0.042μm
Site Size26x8mm
Particles≤ 250 @ ≥ 0.045μm
Surface Metals< 1.0xE10/cm2
Applicable MetalsAl, Ca, Cr, Cu, Fe, K, Na, Ni, Zn
SurfaceDouble side polished
PackagingSingle wafer carrier

If you do not see the specification you require or would like to request a quote, please CONTACT SVM to speak with a member of our experienced and knowledgeable sales staff or visit our ONLINE INVENTORY.

Silicon WafersNon-Silicon Wafers
Wafer ServicesLithography and Custom Films