Articulated Technologies, LLC

Lumachip, Inc.

Gregory Victor Nelson

John J Daniels

An electronically active sheet includes a bottom substrate having a bottom electrically conductive surface. A top substrate having a top electrically conductive surface is disposed facing the bottom electrically conductive surface. An electrical insulator separates the bottom electrically conductive surface from the top electrically conductive surface. At least one bare die electronic element is provided having a top conductive side and a bottom conductive side. Each bare die electronic element is disposed so that the top conductive side is in electrical communication with the top electrically conductive surface and so that the bottom conductive side is in electrical communication with the bottom electrically conductive surface.

Solid state light sheet and encapsulated bare die semiconductor circuits with electrical insulator

An encapsulated semiconductor device, comprising a first substrate having an electrically conductive surface; a second substrate having an electrically conductive pattern disposed thereon; and a pattern of semiconductor elements, each of the semiconductor elements having a first conductor and a second conductor. The encapsulated semiconductor device includes an adhesive having the pattern of semiconductor elements fixed thereto and disposed between the electrically conductive surface and the electrically conductive pattern to form a lamination, the adhesive being activatable to bind the second substrate to the first substrate so that one of the first conductor and the second conductor is automatically brought into and maintained in electrical communication with the electrically conductive pattern of the second substrate and so that the other of the first conductor and the second conductor of each semiconductor element is automatically brought into and maintained in electrical communication with the electrically conductive surface.

Roll-to-roll fabricated encapsulated semiconductor circuit devices

An electronically active sheet, comprising a first substrate having an electrically conductive surface; a second substrate having an electrically conductive pattern disposed thereon; at least one semiconductor element having a first conductor and a second conductor. The electronically active sheet includes an adhesive having at least one semiconductor element fixed thereto and disposed between the electrically conductive surface and the electrically conductive pattern to form a lamination. The adhesive is activatable to bind the second substrate to the first substrate so that one of the first conductor and the second conductor of the at least one semiconductor element is automatically brought into electrical communication with the electrically conductive pattern and so that the other of the first conductor and the second conductor of the at least one semiconductor element is automatically brought into and maintained in electrical communication with the electrically conductive surface of the first substrate.

Roll-to-roll fabricated electronically active device

A method of manufacturing a photo-radiation source comprising the steps of providing a first planar conductor; disposing a formation of light emitting chips on the first planar conductor, each chip having a cathode and an anode, one of the cathode and anode of each chip being in contact with the first planar conductor. The method of manufacturing a photo-radiation source also includes the steps of disposing a second planar conductor on top of a formation of light emitting chips so that the second planar conductor is in contact with the other of the cathode and anode of each chip; and binding the first planar conductor to the second planar conductor to permanently maintain the formation of light emitting chips without the use of solder or wiring bonding for making an electrical and mechanical contact between the chips and either of the first planar conductor and the second planar conductor.

Manufacturing of a photo-radiation source by binding multiple light emitting chips without use of solder or wiring bonding

A method of making a light active sheet. A bottom substrate having an electrically conductive surface is provided. A hotmelt adhesive sheet is provided. Light active semiconductor elements, such as LED die, are embedded in the hotmelt adhesive sheet. The LED die each have a top electrode and a bottom electrode. A top substrate is provided having a conductive layer. The hotmelt adhesive sheet with the embedded LED die is inserted between the electrically conductive surface and the conductive layer to form a lamination. The lamination is run through a heated pressure roller system to melt the hotmelt adhesive sheet and electrically insulate and bind the top substrate to the bottom substrate. As the hotmelt sheet is softened, the LED die breakthrough so that the top electrode comes into electrical contact with the conductive layer of the top substrate and the bottom electrode comes into electrical contact with the electrically conductive surface of the bottom substrate. Thus, the p and n sides of each LED die are automatically connected to the top conductive layer and the bottom conductive surface. Each LED die is encapsulated and secured between the substrates in the flexible, hotmelt adhesive sheet layer. The bottom substrate, the hotmelt adhesive (with the embedded LED die) and the top substrate can be provided as rolls of material. The rolls are brought together in a continuous roll fabrication process, resulting in a flexible sheet of lighting material.

Roll-to-roll fabricated light sheet and encapsulated semiconductor circuit devices

A method of making a light active sheet. A bottom substrate having an electrically conductive surface is provided. A hotmelt adhesive sheet is provided. Light active semiconductor elements, such as LED die, are embedded in the hotmelt adhesive sheet. The LED die each have a top electrode and a bottom electrode. A top transparent substrate is provided having a transparent conductive layer. The hotmelt adhesive sheet with the embedded LED die is inserted between the electrically conductive surface and the transparent conductive layer to form a lamination. The lamination is run through a heated pressure roller system to melt the hotmelt adhesive sheet and electrically insulate and bind the top substrate to the bottom substrate. As the hotmelt sheet is softened, the LED die breakthrough so that the top electrode comes into electrical contact with the transparent conductive layer of the top substrate and the bottom electrode comes into electrical contact with the electrically conductive surface of the bottom substrate. Thus, the p and n sides of each LED die are automatically connected to the top conductive layer and the bottom conductive surface. Each LED die is encapsulated and secured between the substrates in the flexible, hotmelt adhesive sheet layer. The bottom substrate, the hotmelt adhesive (with the embedded LED die) and the top substrate can be provided as rolls of material. The rolls are brought together in a continuous roll fabrication process, resulting in a flexible sheet of lighting material.

A photo-radiation source for the selective polymerization of photo-radiation-curable organic material. In a first embodiment, a first electrode is provided with a second electrode disposed adjacent to the first electrode, and defining a gap therebetween. A photo-radiation emission layer is disposed in the gap. The photo-radiation emission layer includes a charge-transport matrix material and an emissive particulate dispersed within the charge-transport matrix material. The emissive particulate receives electrical energy through the charge-transport matrix material applied as a voltage to the first electrode and the second electrode photo-radiation. The emissive particulate generates photo-radiation in response to the applied voltage. This photo-radiation is effective for the selective polymerization of photo-radiation curable organic material.

Photo-radiation source provided with emissive particles dispersed in a charge-transport matrix

Device structures for sheets of light active material. A first substrate has a transparent first conductive layer. A pattern of light active semiconductor elements are fixed to the first substrate. The light active semiconductor elements have an n-side and a p-side. Each light active semiconductor element has either of the n-side or the p-side in electrical communication with the transparent conductive layer. A second substrate has a second conductive layer. An adhesive secures the second substrate to the first substrate so that the other of said n-side or said p-side of each said light active semiconductor element is in electrical communication with the second conductive layer. Thus forming a solid-state light active device.

Light active sheet material

A method for making a sheet of light active material. A first substrate is provided having a transparent first conductive layer. A pattern of light active semiconductor elements are formed. The pattern of light active semiconductor elements may be formed using an electrostatic attraction and transferring process. The light active semiconductor elements have an n-side and a p-side. Each light active semiconductor element has either of the n-side or the p-side in electrical communication with the transparent conductive layer. A second substrate having a second conductive layer is provided. The second substrate is secured to the first substrate so that the other of said n-side or said p-side of each said light active semiconductor element in electrical communication with the second conductive layer. Thus, a solid-state sheet of light active material is formed.

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Branford, CT, United States of America

Gregory Victor Nelson