Page 30 - PCMI December 2017 Journal

Issue 130
December 2017
PCMI Journal Page 29
Mul Wavelengths LED Direct Imaging Dedicated to PCM
Frédéric Baradel | VP of Sales & Marke ng | Al x France | FR and Alexis Guilbert | Direct Imaging Product Manager | Al x France | FR
11/20/17
2. Resolu+on – Dry Film Resists
Triple lamina+on achieved with ALDSTM Solu+on 50μm
120μm
Square Opening 200μm
120μm
Copper
290μm total dry film thickness with less than 10μm undercut
Pla<ng Process
2. Resolu+on – Image Quality
Best image quality is achieved with LED intensity adjustment Undercut/Overhang issues with single wavelength (UV laser) Highest Efficiency & Quality with ALDS-Power4TM
365 380 395 405nm
Resist absorp<on
11
200x200μm
100% 0% 0% 0%
290μm
100% 80% 0% 0%
100% 80% 50% 0%
100%
80% 50% 30%