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6 PCB007 MAGAZINE I MAY 2022 SHORTS Lasers Trigger Magnetism in Atomically Thin Quantum Materials Lithium's Narrow Paths Limit Batteries Additive Reality: Let's Drop a Line About PCB Cross Sections DEPARTMENTS Career Opportunities Educational Resource Center Advertiser Index & Masthead ARTICLES A Textbook Look: Signal Integrity and Impedance Webinar Review by Pete Starkey Breaking Down the Current Materials Market Interview with Ed Kelley COLUMNS How Industry 4.0 Shapes PCB Wet Processes by Christopher Bonsell DoD is Unarmed Without the PCB by Travis Kelly Copper Etchant Regeneration by Happy Holden Simple Secrets for Effective Mentorships by Paige Fiet What's in the Electrical Test Crystal Ball? by Todd Kolmodin HIGHLIGHTS PCB007 Suppliers MilAero007 EIN007 Industry News Top 10 from PCB007 56 64 22 52 80 88 96 78 86 94 100 26 54 92 103 118 119 MAY 2022 • ADDITIONAL CONTENT 56 64 80