Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
It is a process to remove the unused section of plated through holes.
This will ensure signal stubs are minimized; Stubs are the source of impedance discontinuities and signal reflections which become more critical as data rates increase. It is preferred method in HS designs.
Main Purpose of Back drilling is Signal Reflection and Reduce the Stub,
we can do back drilling or Blind or Burried Vias,
when we go for Blind or burried via,manufacturing cost will increase
Another reason for backdrilling instead of using blind and buried is if you are using it in a backplane, you most likely will not have many vias as you will be going from connector to connector so you would be backdrilling the connector pins which wouldn't be blind or buried.
If we backdrill the connector pins than how can we solder it from the other side since it is a PTH connector. can you upload any pic for this to make clear pitcher
What are the files to be sent to manufacturer to do the back drilling.
in the designs i was talking about we use press-fit connectors so no soldering required. The files we typically send are just modified drill files that give the coordinates of the holes to be back drilled they also include the a fab drawing with the depth of each drill required.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
