CD Materials By Bill. Commercial CDs Materials/Process: –Injection molded PC imprinted with bumps...
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Transcript of CD Materials By Bill. Commercial CDs Materials/Process: –Injection molded PC imprinted with bumps...
CD Materials
By Bill
Commercial CDs
• Materials/Process:– Injection molded PC imprinted with bumps by
master stamp.– Aluminum is sputtered over bumps– Protective acrylic layers sprayed over top– Label painted on top of acrylic.
Commercial CDs
• Mastering: process of creating a stamper to be used in the injection molding stage of manufacturing compact discs. – A laser etches the digital pattern onto a highly
polished glass disc coated with photoresist – "glass master" is then cured (developed) with
ultraviolet light and rinsed off – A metal mold is electroformed– The mold is removed and electroplated with nickel to
be used as the stamper.
Commercial CDs
• 10X
Commercial CDs
• 50X
Commercial CDs
• 75X
Commercial CDs
• 100X
Commercial CDs
• 50x: No track
CD-Rs
• Materials/Process:– Organic dye between the PC substrate and the
reflective layer– PC substrate has is etched with a pregroove
www.cdmediaworld.com
CD-Rs
• Materials/Process:– Dyes and color
Dye Material Refl: Au Refl: Ag Quality
Cyanine Green Green/blue Cheapest
PhthaloCyanine Gold - Highest
Metallized Azo - Dark blue ?
Advanced PhthaloCyanine
Gold -
Formazan Green/gold -
CDRs
• 10X: dirt
CDRs
• 100X