<ul><li>Raspberry Pi has managed to reduce product returns by 50% by changing its through-hole soldering process.</li><li>The company has over 60 million products that combine surface-mount devices (SMDs) and through-hole soldering.</li><li>Through-hole soldering is still necessary for components like the 40-pin GPIO header, Ethernet, and USB ports on the Raspberry Pi board.</li><li>Initially, these parts were manually inserted, then placed by robots, followed by a wave soldering step to ensure robust solder joints.</li></ul>

Raspberry Pi cuts product returns by 50% by changing up its pin soldering

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