PCB Libraries, Inc. | https://www.pcblibraries.com/forum/minimum-trace-width-spacing-for-bga_topic1556_post6321.html
(plugged from top open on bottom) if not near a pad on the bottom, and VIA18D9A26PTB plugged and cover with solder mask from both sides
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/0402-capacitors-under-1-mm-pitch-bga_topic695_post2385.html
. Here is a 1 mm pitch BGA with dogbone fanout. The 0402 can be perfect center via-in-pad or located in-between fanout vias if there's room
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic695&OB=ASC.html
. Right now I have s60r12 pads with v50h25 vias, and Expedition is nudging the vias slightly, indicating that I have cut things just a little too close
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/thermal-relief-for-smd-components_topic1009.html
. I always "Flood Over" every via in a PCB layout expect those that are via-in-pad will have a thermal relief. The via-in-pad vias have to be specially marked on the fabrication drawing as they need to be plated, plugged, capped, surface finish and planerized flat so that you cannot tell if there is a hole or not
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/thermal-relief-for-smd-components_topic1009.html
. I always "Flood Over" every via in a PCB layout expect those that are via-in-pad will have a thermal relief. The via-in-pad vias have to be specially marked on the fabrication drawing as they need to be plated, plugged, capped, surface finish and planerized flat so that you cannot tell if there is a hole or not
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic1009&OB=ASC.html
. I always "Flood Over" every via in a PCB layout expect those that are via-in-pad will have a thermal relief. The via-in-pad vias have to be specially marked on the fabrication drawing as they need to be plated, plugged, capped, surface finish and planerized flat so that you cannot tell if there is a hole or not
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3051.html
), just a clean hole through the FR4 material. The mfr. desmears plated holes, but non-plated holes are plugged or masked during the plating process
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3054.html
), just a clean hole through the FR4 material. The mfr. desmears plated holes, but non-plated holes are plugged or masked during the plating process
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3049.html
), just a clean hole through the FR4 material. The mfr. desmears plated holes, but non-plated holes are plugged or masked during the plating process
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3059.html
+ hole size - value in millimeters K + keepout size - value in millimeters (this normally maps to the placement courtyard diameter) V + Number of vias _ via hole size
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