How LEDs are made (2014)
2 days ago
- #factory tour
- #electronics supply chain
- #LED manufacturing
- LEDs are manufactured using LED dies purchased from Taiwanese companies, costing around $12.50 per sheet of 4,000 dies.
- The assembly process begins with lead frames and involves applying adhesive, manually aligning dies with tweezers, and wire bonding with gold.
- Epoxy resin is injected into molds to shape LEDs, followed by baking for curing. Testing ensures quality, with automation for cutting and verifying current.
- Custom LED designs are difficult due to the fragmented supply chain, requiring coordination across multiple specialized suppliers.
- The factory tour by YunSun revealed operations in open air, surprising the author who expected clean room conditions.