Creeled, Inc.

Innovative Micro Technology

Tao Feng Gilbert

Antony Paul Van De Ven

Bernd P Keller

Peter Scott Andrews

James Ibbetson

Jeffery Frank Summers

John Harley

Fan Zhang

Deborah Kircher

Thodore Lowes

Antony Van De Ven

Light emitting diodes are disclosed that utilize multiple conversion materials in the conversion process in order to achieve the desired emission color point. Different embodiments of the present invention can comprise different phosphor types in separate layers on, above or around one or a plurality of LED chips to achieve the desired light conversion. The LEDs can then emit a desired combination of light from the LED chips and conversion material. In some embodiments, conversion materials can be applied as layers of different phosphor types in order of longest emission wavelength phosphor first, followed by shorter emission phosphors in sequence as opposed to applying in a homogeneously mixed phosphor converter. The conversion material layers can be applied as a blanket over the LED chips and the area surrounding the chip, such as the surface of a submount holding the LED chips.

Multi-layer conversion material for down conversion in solid state lighting

A method for creating small features in an Al/Ag/Ti multilayer stack is disclosed. The method uses a combination of wet and dry etching techniques to anisotropically etch the layers.

Etching technique for microfabrication substrates

Growing community of inventors

Goleta, CA, United States of America

Tao Feng Gilbert