Surface mountable LED package

US6274924A · kind A · utility

Assignee

• Lumileds Lighting US, LLC · US

Inventors

• Julian Carey · San Francisco, US
• William David Collins, III · San Jose, US
• Ban P. Loh · Durham, US
• Gary Sasser · San Jose, US

Key dates

• Filing date: Nov 5, 1998
• Grant date: Aug 14, 2001
• Expiry date: Nov 5, 2018

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/12041

Abstract

An LED package includes a heat-sinking slug that is inserted into an insert-molded leadframe. The slug may include an optional reflector cup. Within this cup, the LED and a thermally conducting sub-mount may be attached. Wire bonds extend from the LEDs to metal leads. The metal leads are electrically and thermally isolated from the slug. An optical lens may be added by mounting a pre-molded thermoplastic lens and a soft encapsulant or by casting epoxy to cover the LED or by a cast epoxy lens over a soft encapsulant.