PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/bga-pad-size_topic2607_post10645.html
: San Diego, CA Status: Offline Points: 5184 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 22 Mar 2021 at 2:10pm Non-collapsing BGA balls are intended for fine pitch parts where a normal dog-bone via fanout cannot be achieved and you must use via-in-pad technology for this trace routing solution
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-size_topic2607_post12477.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5193 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 22 Mar 2021 at 2:10pm Non-collapsing BGA balls are intended for fine pitch parts where a normal dog-bone via fanout cannot be achieved and you must use via-in-pad technology for this trace routing solution
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/bga-pad-size_topic2607_post11390.html
: San Diego, CA Status: Offline Points: 5183 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 22 Mar 2021 at 2:10pm Non-collapsing BGA balls are intended for fine pitch parts where a normal dog-bone via fanout cannot be achieved and you must use via-in-pad technology for this trace routing solution
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-size_topic2607_post10649.html
: San Diego, CA Status: Offline Points: 5484 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 22 Mar 2021 at 2:10pm Non-collapsing BGA balls are intended for fine pitch parts where a normal dog-bone via fanout cannot be achieved and you must use via-in-pad technology for this trace routing solution
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/nonsymmetric-tolerance-question_topic2352.html
+ and - tolerances has no affect on the resulting footprint because the IPC mathematical model uses the Minimum and Maximum dimensions to calculate the pad size and location, not the Nominal dimension
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/nonsymmetric-tolerance-question_topic2352.html
+ and - tolerances has no affect on the resulting footprint because the IPC mathematical model uses the Minimum and Maximum dimensions to calculate the pad size and location, not the Nominal dimension
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-oversize_topic1913.html
? I tried a 0.50 mm pitch BGA with a ball size of 0.30 mm and the pad oversize was at 0 mm and as soon as I put the ball at 0.50 mm the pad oversize became 0.05 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-oversize_topic1913_post7785.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5195 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 21 Jun 2016 at 11:27am For the non-collapsing BGA ball, here are the Ball Sizes / Pad Sizes
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic1913&OB=ASC.html
? I tried a 0.50 mm pitch BGA with a ball size of 0.30 mm and the pad oversize was at 0 mm and as soon as I put the ball at 0.50 mm the pad oversize became 0.05 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_collapsing-vs-noncollapsing-bga-balls_topic1868.xml
:34amNon-collapsing BGA balls start at 0.50 mm pitch and less. The pad size is larger because you need to do via-in-pad and you need an annular ring.
