Patent ID: 11949212
Assignee: KYOCERA SLD LASER, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC C  H | IPC C  H

Claim 9:
10. A method comprising:
providing a plurality of III-nitride mother crystals, wherein each of the III-nitride mother crystals are single crystalline films with a wurtzite crystal structure and comprises at least one of GaN, AlN, InN, InGaN, AlGaN, InAlN, and InAlGaN;
connecting the III-nitride mother crystals to a first handle substrate by one or more bonding layers, wherein the one or more bonding layers include at least one of silicon oxide, silicon nitride, silicon oxynitride, boron and or phosphorous containing glass, and spin-on-glass films derived from silicon and oxygen containing polymers or monomers;
providing a second handle substrate;
connecting the III-nitride mother crystals to the second handle substrate;
controlling shape, sizes and positions of the III-nitride mother crystals such that a location and width of gaps between adjacent ones of the III-nitride mother crystals are predetermined to within a tolerance of less than or equal to 5 millimeters; and
selectively separating a layer of the III-nitride mother crystals to form an engineered substrate comprising at least the second handle substrate and a plurality of epitaxial seed layer regions derived from the III-nitride mother crystals.