PCB Libraries, Inc. | https://www.pcblibraries.com/forum/thermal-relief-for-smd-components_topic1009.html
Thermal Relief for SMD components - PCB Libraries Forum Forum Home > General > General Discussion New Posts FAQ Search Events Register Login Thermal Relief for SMD components
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic1009&OB=ASC.html
Thermal Relief for SMD components - PCB Libraries Forum Forum Home > General > General Discussion New Posts FAQ Search Events Register Login Thermal Relief for SMD components
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7093a-btc-qfn-solder-mask-defined-thermal-pad_topic2154_post11220.html
. Old Thermal Pad Paste Mask with 50% reduction: Note: all vias in a Thermal Pad must have a direct connection to the GND plane. Using Thermal Relief patterns with defeat the purpose of heat reduction away from the BTC component
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7093a-btc-qfn-solder-mask-defined-thermal-pad_topic2154_post10556.html
. Old Thermal Pad Paste Mask with 50% reduction: Note: all vias in a Thermal Pad must have a direct connection to the GND plane. Using Thermal Relief patterns with defeat the purpose of heat reduction away from the BTC component
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2154&OB=ASC.html
. Old Thermal Pad Paste Mask with 50% reduction: Note: all vias in a Thermal Pad must have a direct connection to the GND plane. Using Thermal Relief patterns with defeat the purpose of heat reduction away from the BTC component
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-smd-pth-reference-calculators_topic785_post9683.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 4489 Post Options Post Reply Quote Tom H Report Post Thanks(1) Quote Reply Posted: 09 Jul 2018 at 7:32am Thermal Relief is for all PTH pins that connect to a Plane
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_ipc7351-smd-pth-reference-calculators_topic785.xml
; PTH Reference Calculators : Thermal Relief is for all PTH... Author: Tom HSubject: 785Posted: 09 Jul 2018 at 7:32amThermal Relief is for all PTH pins that connect to a Plane. 
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/footprint-expert-2021-16-released_topic2982_post11884.html
. TO-220 Flange Mount family – Fixed an issue in Options that prevented users from changing Pin 1 from Square to Round shape. Updated the mounting hole inner layer plane connection from a thermal relief to a direct connection
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2982&OB=ASC.html
. TO-220 Flange Mount family – Fixed an issue in Options that prevented users from changing Pin 1 from Square to Round shape. Updated the mounting hole inner layer plane connection from a thermal relief to a direct connection
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/proportional-throughhole-padstacks_topic90_post41.html
. The Thermal Relief is a simple formula - The ID is 20 mil (0.5 mm) larger than the Hole Size The OD is the same value as the Anti-pad The Spoke Width = Anti-pad X 75