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MLS is a reverse-treated, Grade 3, controlled elongation foil.
This product is designed for inner layer applications where controlled impedance and high density,
fine lines are required. MLS is fully compatible with all epoxy resin systems.
Performance benefits include:
- •VLP bonding surface, minimal foil treatment residues after etching.
- •Superior etch factor for fine lines.
- •Reduced costs through process step elimination during PCB fabrication.
- •HTE characteristics eliminate inner layer foil cracking.
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MLS Product Data Sheet (Std)
(pdf) 
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Typical Matte and Drum Side Images:
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Treated (Drum) Side MLS (1/2 oz)
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Untreated (Matte) Side MLS (1/2 oz)
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High Temp Elongation @180ºC |
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Roughness -Rz
Treated (Drum) Side |
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Roughness -Rz
Untreated (Matte) Side |
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B Condition Peel
Epoxy Tg 170ºC
Treated (Drum) Side |
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*Note: Nominal thickness is determined by area weight. Actual measured thickness may be slightly higher due to matte side topography.
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