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Conductor Surface Roughness

March 7, 2014 by Rolf Østergaard

A discussion over on the SI-LIST on conductor surface roughness triggered Lee Ritchey to write a nice summary of the state of things when signals are fast enough that you are concerned about losses at high frequencies. You can read it in full here, but in short this is the essence: I specify copper roughness… Read more

Filed Under: PCB Manufacturing Tagged With: Copper Roughness, Laminate, Stackup, Stockholm

How Laminate and Prepreg is made

April 29, 2013 by Rolf Østergaard

Knowing how laminate/prepreg is manufactured matters. Communication starts with understanding each other. This is why board-level design engineers need to understand how PCB’s are being manufactured in much detail. Because modern high-speed designs require a lot of communication between the board designer and the PCB manufacturer. In the course “Lee Ritchey: Stackup Design” we go… Read more

Filed Under: PCB Manufacturing Tagged With: Isola, Laminate, Prepreg, Stackup, Stockholm, Video

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