Patent ID: 11862752
Assignee: QUANZHOU SANAN SEMICONDUCTOR TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The LED of claim 5, wherein said DBR structure further includes a second layered unit disposed on said first layered unit opposite to said substrate, said second layered unit including a plurality of pairs of layers, said layers in each pair including a second high refractive index layer and a second low refractive index layer, said second high refractive index layers and said second low refractive index layers in said second layered unit being alternately stacked, and wherein for said second layered unit, each of said second high refractive index layers having an optical thickness different from that of each of said first high refractive index layers, and each of said second low refractive index layers having an optical thickness different from that of each of said first low refractive index layers.