PCB manufacturing tolerances - RF Cafe Forums
Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.
Below are all of the forum threads, including all the responses to the original posts.
Post subject: PCB manufacturing tolerances Posted: Tue Jul 08, 2008 8:26 am
Joined: Mon Jul 07, 2008 7:51 am
We are a manufacturer of RF modules in Ku band.The shift of conductor edges in PCB manufacturing is very important for us(as you know it leads to change in trace width,stub length,....).To avoid tuning in our production line the shift must be less than 10 microns(This leads to 20 micron shift in trace widths - with 10microns for each side).
As far as we know this shift is due to lithography and etching tolerances.does anyone know an Rf PCB manufacturer who meets our requirements.Is there any idea about other manufacturing error resources.