Stress relief for array-based electronic devices
OwnerMichael A. TISCHLER, Paul PALFREYMAN +1inventors
InventorsMichael A. TISCHLER, Paul PALFREYMAN, Philippe M. SCHICK
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Abstract
In accordance with certain embodiments, an electric device includes a flexible substrate having first and second conductive traces on a first surface thereof and separated by a gap therebetween, an electronic component spanning the gap, and a stiffener configured to substantially prevent flexing of the substrate proximate the gap during flexing of the substrate.
Claims20
-30. (canceled)
An electronic device comprising:
- a flexible substrate having first and second conductive traces disposed on and affixed to a first surface thereof, the first and second conductive traces being separated on the substrate by a gap therebetween;
- and
- spanning the gap between the first and second conductive traces, a light-emitting element having first and second distinct contacts on a first surface thereof, the first and second contacts being attached to and in electrical contact with, respectively, the first and second conductive traces,
- wherein:
- the light-emitting element is part of one of a plurality of light-emitting strings disposed on the first surface of the substrate and interconnected in an electric circuit, each light-emitting string comprising (i) a plurality of light-emitting elements spaced along the light-emitting string and (ii) a plurality of electrical conductors interconnecting the light-emitting elements,
- the electric circuit comprises at least one passive component, and
- at least one said passive component of the electric circuit is a distributed component having a selected electrical response to (i) a current passing therethrough or (ii) a voltage applied thereto, the distributed component corresponding to at least one of a portion of an electrical conductor or a portion of the substrate.
The electronic device of claim 1, further comprising a second distributed component having a selected electrical response to (i) a current passing therethrough or (ii) a voltage applied thereto, the second distributed component corresponding to at least one of a portion of an electrical conductor or a portion of the substrate, wherein:
- the distributed component is disposed within a first light-emitting string,
- the second distributed component is disposed within a second light-emitting string different from the first light-emitting string, and
- the selected electrical response of the distributed component is different from the selected electrical response of the second distributed component.
The electronic device of claim 1, wherein the first and second conductive traces comprise at least one of copper, aluminum, gold, silver, carbon, silver ink, or chromium.
An electronic device comprising:
- a flexible substrate having first and second conductive traces disposed on and affixed to a first surface thereof, the first and second conductive traces being separated on the substrate by a gap therebetween;
- and
- spanning the gap between the first and second conductive traces, a light-emitting element having first and second distinct contacts on a first surface thereof, the first and second contacts being attached to and in electrical contact with, respectively, the first and second conductive traces;
- wherein:
- the light-emitting element is part of one of a plurality of light-emitting strings disposed on the first surface of the substrate and interconnected in an electric circuit, each light-emitting string comprising (i) a plurality of light-emitting elements spaced along the light-emitting string and (ii) a plurality of electrical conductors interconnecting the light-emitting elements,
- the electric circuit comprises at least one passive component, and
- at least one said passive component of the electric circuit is a distributed capacitor having a selected target capacitance, the distributed capacitor having a structure corresponding to (i) a portion of a first electrical conductor, (ii) a portion of a second electrical conductor proximate the electrical conductor, and (iii) a gap between the portion of the first electrical conductor and the portion of the second electrical conductor.
An electronic device comprising:
- a flexible substrate having first and second conductive traces disposed on and affixed to a first surface thereof, the first and second conductive traces being separated on the substrate by a gap therebetween;
- and
- spanning the gap between the first and second conductive traces, a light-emitting element having first and second distinct contacts on a first surface thereof, the first and second contacts being attached to and in electrical contact with, respectively, the first and second conductive traces;
- wherein:
- the light-emitting element is part of one of a plurality of light-emitting strings disposed on the first surface of the substrate and interconnected in an electric circuit, each light-emitting string comprising (i) a plurality of light-emitting elements spaced along the light-emitting string and (ii) a plurality of electrical conductors interconnecting the light-emitting elements,
- the electric circuit comprises at least one passive component, and
- at least one said passive component of the electric circuit is a fuse having a structure corresponding to at least a portion of an electrical conductor having (i) a first portion having a first width, and (ii) a second portion, adjacent the first portion, having a second width larger than the first width.
Dependencies are inferred from the claim text.