Circuit Break - A MacroFab Podcast

MEP EP#262: Flex PCB Primers

Listen Later

MEP EP#262: Flex PCB Primers

Parker

  • Robert Feranec
    • Published a video about what to consider when selecting chips for your new board design.
      • Don’t want to steal Robert's content so go check him out.
      • Hardware design and PCB Layout online course
      • Comprehensive Power Supply System Designs for Harsh Automotive Environments Consume Minimal Space, Preserve Battery Charge, Feature Low EMI
        • Analog engineer Bin Wu and previous Linear Tech engineer Zhongming Ye writing an application note with linear tech devices.
        • ‘An Ideal Diode Satisfies Automotive Immunity Norms’
          • LT8672
            • Active rectifier controller
            • Why is all this needed?
              • Car power is dirty
                • Load dumps
                • Cold cranking
                • Pulses
                  • ISO 7632-2 is a negative spike whose peak voltage exceeds −220 V!
                  • Reverse Polarity
                  • AC Ripple

                    • Stephen

                    • Wurth Elektronik on Flex PCBs
                      • Basically Polyimide foil with deposited copper
                      • 3 ways to create a system (from page 2)
                        • Heterogeneous
                        • Homogeneous
                        • Partial Homogeneous
                        • Full flex and Semiflex
                        • Much Much easier way to create a 3d system design
                        • Added benefit of having a full panelized system
                          • Can test a full panel of designs all at once
                          • Test points can technically be on the flex
                          • Break and make
                            • Take the rails off of the PCB
                            • Flex-rigid boards
                              • Can be bonded to external layers
                              • Can be internal
                              • Can be rigid on one side or both
                              • Can be multiple layers
                              • Layout and routing
                                • Create a new layer in your EDA tool to define the Flex portion
                                • No vias in flex portion
                                • Use teardrops for added rigidity
                                • Use wider tracks where possible for added strength
                                • Do not change width in bend area
                                • Distribute conductors evenly
                                • Documentation
                                  • Do it... Do it a lot
                                  • In addition to the PCB gerber or ODB++ files include drawings
                                  • A fab drawing that defines the flex pcb is very helpful
                                    • ...more
                                    View all episodesView all episodes
                                    Download on the App Store
                                    Circuit Break - A MacroFab PodcastBy MacroFab, Inc.
                                    • 4.8
                                    • 4.8
                                    • 4.8
                                    • 4.8
                                    • 4.8

                                    4.8

                                    37 ratings

                                    More shows like Circuit Break - A MacroFab Podcast

                                    View all
                                    The Amp Hour Electronics Podcast by The Amp Hour (Chris Gammell and David L Jones)

                                    The Amp Hour Electronics Podcast

                                    229 Listeners

                                    Embedded by Logical Elegance

                                    Embedded

                                    189 Listeners

                                    All Ears English Podcast by Lindsay McMahon and Michelle Kaplan

                                    All Ears English Podcast

                                    2,271 Listeners

                                    Recording Studio Rockstars by Lij Shaw

                                    Recording Studio Rockstars

                                    503 Listeners

                                    Well There‘s Your Problem by WTYP is Justin Roczniak, November Kelly, Liam McAnderson, and friends.

                                    Well There‘s Your Problem

                                    1,219 Listeners

                                    The Rest Is History by Goalhanger

                                    The Rest Is History

                                    12,428 Listeners

                                    The Carmudgeon Show by Hagerty Media

                                    The Carmudgeon Show

                                    281 Listeners