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US 2007/0177380 A1Published application
Led illumination assembly with compliant foil construction
Assignee3M Innovative Properties Company
InventorsJohn C. Schultz, Andrew J. Ouderkirk, Joel S. Peiffer, Nelson B. O'Bryan, John A. Wheatley, Cameron T. Murray
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Abstract
An illumination assembly includes a compliant substrate comprising a first and second electrically conductive foil separated by an electrically insulating layer. The insulating layer includes a polymer material loaded with particles that enhance thermal conductivity of the insulating layer. A plurality of LED dies are disposed on the first conductive foil.
Claims20
An illumination assembly, comprising:
- a compliant substrate comprising a first and second electrically conductive foil separated by an electrically insulating layer, the insulating layer comprising a polymer material loaded with particles that enhance thermal conductivity of the insulating layer;
- and
- a plurality of LED dies disposed on the first conductive foil.
A method of making an illumination assembly, the method comprising:
- supplying a compliant substrate comprising a first and second electrically conductive foil separated by an electrically insulating layer;
- patterning the first electrically conductive foil;
- attaching a plurality of LED dies to the patterned first electrically conductive layer;
- and
- permanently deforming the substrate to define a plurality of surface features, wherein locations of the surface features correspond to locations of the LED dies.
2 more elements
Dependencies are inferred from the claim text.