Direct Chip Attach Light Emitting Diodes (LEDs) are the next generation of solid-state LED emitters. They deliver superior value for consumer products and markets that include TV backlighting, camera flashes, and a variety of general illumination needs.
The bondpad-down design of direct attach LEDs eliminates the need for wire bonds, yet improves the thermal management.
Palomar Technologies Solution
Palomar Technologies has developed a precision eutectic process for direct attach LEDs. The Pulsed Heat System allows precision die attach systems to control LED exposure much more effectively than most other processes. The 3800 Die Bonder and the 6500 Die Bonder offer pulsed heat stage for eutectic attach.
Assembly Services is supporting more than 390 700µm LEDs that are attached with an Au/Sn solder to a single 50mm metal core carrier. Palomar Technologies’ Pulsed Heat System is a major contributor to this development, allowing our precision die attach systems to control LED exposure much more effectively than most other processes.