# US 10,770,496 B2 · Optical sensors and methods for forming the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,496 B2 - Document ID: US10770496B2 - Status: Granted - Kind: B2 - Application number: 15/953,837 - Filed: 2018-04-16 - Published: 2019-10-17 - Granted: 2020-09-08 - Earliest claimed: 2018-04-16 - Assignees: VisEra Technologies Company Limited - Applicants: VisEra Technologies Company Limited - Inventors: Ching-Chiang Wu; Ho-Tai Lin; Masafumi Sano - Web page: https://patentgrep.com/patent/US10770496B2 ## CPC - H10F 39/8057: {Optical shielding} - H10F 39/024: {of coatings or optical elements} - H10F 39/182: {Colour image sensors} - H10F 39/802: {Geometry or disposition of elements in pixels, e.g. address-lines or gate electrodes} - H10F 39/8053: {Colour filters} - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract An optical sensor includes an optical layer disposed on a substrate, and a light shielding layer disposed on the optical layer, wherein the light shielding layer includes a first opening that partially exposes the optical layer. The optical sensor also includes a polymer material layer that fills the first opening, wherein a top surface of the polymer material layer is higher than a top surface of the light shielding layer. The optical sensor further includes an adhesive layer disposed on the light shielding layer and the polymer material layer, and a surface component disposed on the adhesive layer. ## Claims ### Claim 1 An optical sensor, comprising: an optical layer disposed on a substrate; a light shielding layer disposed on the optical layer, wherein the light shielding layer comprises first openings that partially expose the optical layer; a polymer material layer fills the first opening, wherein a top surface of the polymer material layer is higher than a top surface of the light shielding layer, wherein the polymer material layer includes a plurality of protruding portions that respectively fill each of the first openings in the light shielding layer, and the plurality of protruding portions of the polymer material layer are disconnected to each other; an adhesive layer disposed on the light shielding layer and the polymer material layer; and a surface component disposed on the adhesive layer. ### Claim 2 (depends on 1) The optical sensor as claimed in claim 1, wherein a portion of the light shielding layer is covered by the polymer material layer, and the polymer material layer is surrounded by the adhesive layer and the light shielding layer. ### Claim 3 (depends on 1) The optical sensor as claimed in claim 1, wherein the optical layer is fully covered by the polymer material layer and the light shielding layer. ### Claim 4 (depends on 1) The optical sensor as claimed in claim 1, wherein the polymer material layer has a rectangular shape or a circular shape from a top view. ### Claim 5 (depends on 1) The optical sensor as claimed in claim 1, wherein a thickness of the polymer material layer is less than 1.5 times a thickness of the light shielding layer. ### Claim 6 (depends on 1) The optical sensor as claimed in claim 1, wherein the top surface of the polymer material layer is higher than a bottom surface of the adhesive layer. ### Claim 7 (depends on 1) The optical sensor as claimed in claim 1, further comprising: a hydrophilic film covering the light shielding layer and the polymer material layer, wherein the adhesive layer is separated from the light shielding layer and the polymer material layer by the hydrophilic film. ### Claim 8 (depends on 1) The optical sensor as claimed in claim 1, further comprising: a photoelectric conversion region disposed in the substrate, wherein the polymer material layer is made of an organic polymer, and the polymer material layer is aligned with the photoelectric conversion region, and wherein the adhesive layer is transparent, and the surface component is partially transparent or fully transparent. ### Claim 9 (depends on 8) The optical sensor as claimed in claim 8, wherein the polymer material layer is made of a transparent organic polymer, a red color filter, a green color filter, a blue color filter, a cyan color filter, a magenta color filter, a yellow color filter, or an infrared pass filter. ### Claim 10 An optical sensor, comprising: an optical layer disposed on a substrate; a light shielding layer disposed on the optical layer, wherein the light shielding layer comprises a first array of openings and a second array of openings that partially exposes the optical layer; a first polymer material portion fills the first array of openings; a second polymer material portion fills the second array of openings; an adhesive layer disposed on the light shielding layer, the first polymer material portion and the second polymer material portion, wherein the adhesive layer extends between the first polymer material portion and the second polymer material portion; and a surface component disposed on the adhesive layer. ### Claim 11 (depends on 10) The optical sensor as claimed in claim 10, wherein the first polymer material portion is parallel to the second polymer material portion. ### Claim 12 (depends on 11) The optical sensor as claimed in claim 11, wherein the first polymer material portion and the second polymer material portion are disposed along a direction of an edge of the substrate. ### Claim 13 (depends on 10) The optical sensor as claimed in claim 10, wherein the first polymer material portion and the second polymer material portion extend on the light shielding layer, and wherein the first polymer material portion has a first T-shaped cross-section, the second polymer material portion has a second T-shaped cross-section, and the first T-shaped cross-section is separated from the second T-shaped cross-section. ### Claim 14 (depends on 13) The optical sensor as claimed in claim 13, wherein the first T-shaped cross-section has a first center in a top view, the second T-shaped cross-section has a second center in the top view, and the first center and the second center have a first distance therebetween, and wherein the first T-shaped cross-section and the second T-shaped cross-section have a second distance therebetween, and a ratio of the second distance to the first distance is in a range from 15% to 85%.