The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Jun. 23, 2021
Plessey Semiconductors Limited, Plymouth, GB;
Mohsin Aziz, Plymouth, GB;
Jun-Youn Kim, Plymouth, GB;
Abdul Shakoor, Plymouth, GB;
James Carswell, Plymouth, GB;
Anwer Saeed, Plymouth, GB;
Kevin Stribley, Plymouth, GB;
Plessey Semiconductors Limited, Plymouth, GB;
Abstract
According to the first aspect of the disclosure, a method of forming a light emitting device array precursor is provided. The method comprises forming a first light emitting layer on a first substrate, forming an array of first light emitting devices from the first light emitting layer, each first light emitting device configured to emit light having a first wavelength. A first bonding layer is formed on the first light emitting layer. A second light emitting layer is formed on a second substrate, the second light emitting layer configured to emit light having a second wavelength different to the first wavelength. A second bonding layer is formed on the second light emitting layer. The second bonding layer is bonded to a handling substrate, followed by removing the second substrate from the second light emitting layer. A third bonding layer is formed on the second light emitting layer on an opposite side of the second light emitting layer to the handling layer. The first bonding layer is bonded to the third bonding layer and the handling substrate is removed from the second light emitting layer. An array of second light emitting devices is formed from the second light emitting layer, the array of second light emitting devices aligned relative to the array of first light emitting devices such that they are spaced apart from each other in a plane parallel to each of the first and second light emitting layers.