US 12,408,457 B2
Image sensing device with multiple optical layers formed on micro lens
Shin-Hong Kuo, New Taipei (TW); Yu-Chi Chang, Hsinchu County (TW); and Zong-Ru Tu, Zhubei (TW)
Assigned to VISERA TECHNOLOGIES COMPANY LIMITED, Hsin-Chu (TW)
Filed by VisEra Technologies Company Limited, Hsin-Chu (TW)
Filed on Oct. 15, 2020, as Appl. No. 17/071,673.
Prior Publication US 2022/0123037 A1, Apr. 21, 2022
Int. Cl. H10F 39/00 (2025.01)
CPC H10F 39/806 (2025.01) [H10F 39/8063 (2025.01); H10F 39/8053 (2025.01)] 20 Claims
OG exemplary drawing
 
1. An image sensing device, comprising:
a photoelectric conversion layer;
a micro lens formed on the photoelectric conversion layer;
a first optical layer formed on the micro lens;
a second optical layer formed on the first optical layer, wherein the first optical layer directly contacts the second optical layer to form an interface between the first optical layer and the second optical layer, the interface is beveled, and a top surface of the second optical layer is substantially flat; and
an anti-reflection layer formed on the second optical layer.