How LEDs are Made - SparkFun Learn

SparkFun toured YunSun’s Shenzhen factory to show how LEDs are actually assembled.

The process starts with LED dies placed on lead frames, then wire-bonded and molded in epoxy resin.

The visit also highlighted the outsourced supplier chain behind common parts like 7-segment displays.

It underscores how specialized tooling and suppliers make high-volume electronics manufacturing possible.