Light emitting diode chip
AssigneeUniversity College Cork, National University of Ireland, Cork
InventorBill Henry
Life of this patent
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Abstract
An LED chip for use in an LED chip array forming a continuous array of LEDs. The LED chip comprises an array of LEDs on a substrate. LEDs in a row of the array are longitudinally offset from corresponding LEDs in another row. Adjacent LEDs in each row of the array are separated by a longitudinal pitch. At least part of an end face of the substrate is angled with respect to a transverse axis of the LED chip such that the LED chip is positionable adjacent another LED chip to maintain the longitudinal pitch between adjacent LEDs on different chips.
Claims14
An LED chip for use in an array of LED chips forming a continuous array of LEDs, the LED chip comprising:
- an array of LEDs on a substrate,
- wherein LEDs in a row of the array are longitudinally offset from corresponding LEDs in another row, and adjacent LEDs in each row of the array are separated by a longitudinal pitch,
- and wherein at least part of an end face of the substrate is angled with respect to a transverse axis of the LED chip, such that the LED chip is positionable adjacent another LED chip to maintain the longitudinal pitch between adjacent LEDs on different chips.
A method of manufacturing an LED chip comprising:
- fabricating an array of LEDs on a wafer substrate, wherein LEDs in a row of the array are longitudinally offset from corresponding LEDs in another row, and adjacent LEDs in each row of the array are separated by a longitudinal pitch;
- and
- dicing the wafer substrate such that at least part of an end face of the substrate is angled with respect to a transverse axis of the LED chip such that the LED chip is positionable adjacent another LED chip to maintain the longitudinal pitch between adjacent LEDs on different chips.
Dependencies are inferred from the claim text.