I was also about to show the optiprint brochure, thanks. I fully agree with you. We especially like to use Teflon materials with thick copper backing, but fr4 plus ceramic is also quite common here.
Am 1. September 2017 12:12:15 MESZ schrieb Ingo Kletti <[email protected]>: > > >Am 01.09.2017 um 10:06 schrieb jp charras: > > Could you give a link to a manufactured that explains applications >(and show a few boards) where > > different substrates are used. > From experience I can say that many (non-ceramic) RF materials are >rather soft (most common a mix of PTFE and glass fiber reinforcement) >and thin. > >In the designs that I worked on , we therefore created 4-layer PCBs >with >a core consisting of more rigid material (most times FR4). > >Another mix of materials might be PCBs with a solid metal backing used >for cooling applications (think LED lighting, motor drivers, etc.). > >And another application for mixed materials are flex-rigid PCBs. > >While the different PCBs types are not explained in detail, the >brochure >from Optiprint has some photos of complex designs: > >http://www.optiprint.ch/pdf/Optiprint_Imagebroschuere_2014_EN.pdf > > >_______________________________________________ >Mailing list: https://launchpad.net/~kicad-developers >Post to : [email protected] >Unsubscribe : https://launchpad.net/~kicad-developers >More help : https://help.launchpad.net/ListHelp
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