App note from ROHM Semiconductor about their shunt resistor mounting designs to keep heat away. Link here (PDF)
Shunt resistors are widely used for current sensing in automotive and industrial applications. In the automotive sector, as vehicles become more complex and the number of motors and ECUs grows, applications need to be configured in a limited space.
As a result, components are being mounted more intensively and customers require shunt resistors – one of the components mounted on vehicles – that are more power efficient and compact. Accordingly, the thermal design of products and circuit boards has become an important issue.