PCB Layout 101

 Top 5 PCB Design Rules You Need to Know | PCB Design Blog | Altium

Solder Mask

PCB Solder Mask | Printed Circuit Board Manufacturing | MADPCB

6 Common Solder Mask Errors in PCBs | Sierra Circuits

Exploring Paste Mask & Solder Mask in Your PCB Footprint - Altium YouTube

Hard Gold Plating

IPC Class 1 and 2: 30u” over 100u” nickel

IPC Class 3: 50u” over 100u” nickel

Source:  Your Trusted Hard Gold Plating PCB Manufacturer-Venture Electronic

PCB Layout Check List

 See: https://www.911eda.com/pcb-layout-checklist/

Megtron - Panasonic

 https://industrial.panasonic.com/ww/products/pt/megtron

Microvias - Types and Sizes

Source: Microvias in Advanced PCB Designs | Advanced Circuits

Source: Guide to Sizing and Using Microvias in HDI PCB Design | NWES Blog

45 Degree Angle Routing - Why

Why is there such a strong preference for 45 degree angles in PCB routing?

That's it !