PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/qfn-thermal-via-pitch_topic2914_post11617.html
Posted: 20 May 2021 at 12:15pm What happens to the paste mask flow into via holes is that since the vias are connected to the GND planes with direct connections (no thermal reliefs
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/qfn-thermal-via-pitch_topic2914_post11613.html
Posted: 20 May 2021 at 12:15pm What happens to the paste mask flow into via holes is that since the vias are connected to the GND planes with direct connections (no thermal reliefs
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/qfn-thermal-via-pitch_topic2914.html
. According to the IPC-7093A you can also solder mask define the thermal pad to dam in the paste mask to prevent it from flowing into via holes
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/topic2914&OB=ASC.html
. According to the IPC-7093A you can also solder mask define the thermal pad to dam in the paste mask to prevent it from flowing into via holes
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2914&OB=DESC.html
Posted: 20 May 2021 at 12:15pm What happens to the paste mask flow into via holes is that since the vias are connected to the GND planes with direct connections (no thermal reliefs
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2914&OB=ASC.html
. According to the IPC-7093A you can also solder mask define the thermal pad to dam in the paste mask to prevent it from flowing into via holes
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_via-guidance-request-from-tim-c_topic538.xml
current capacity. Via holes are typically plugged when using via-in-pad technology and this includes via-in-thermal pad for QFN's
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic538&OB=ASC.html
for calculating trace widths and via sizes for optimizing current capacity. Via holes are typically plugged when using via-in-pad technology and this includes via-in-thermal pad for QFN's
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_mounting-holes-with-vias_topic939.xml
: ???Also, what about multi layer test points?The "PCB Design Optimization Starts in the CAD Library" mentiones avarage via size for the mounting holes, could this be a bit more specific
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/mounting-holes-with-vias_topic939_post4164.html
: - Mounting Holes (ISO/ANSI, Loose/Tight, Plated/Non-Plated/Via Supported, PanHead/Flat) - Test Points - Fiducials Right know I created a little Altium script to do this, but I'm not really sure on footprint naming: Test Points, Round: TP + Pad Size
