Optical Sensor and Manufacturing Method Thereof
First Claim
1. An optical sensor, comprising:
- a semiconductive substrate;
a light sensing region on the semiconductive substrate;
a waveguide region configured to guide light from a wave insert portion. through a waveguide portion and to a sample holding portion, and the waveguide portion comprising;
a first dielectric layer comprising a first refractive index; and
a second dielectric layer comprising a second refractive index,wherein the second refractive index is smaller than the first refractive index; and
a first interconnect portion positioned in the waveguide portion, configured to transmit electrical signal from the light sensing region to an external circuit, wherein the sample holding portion locates above the light sensing region.
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Accused Products
Abstract
Some embodiments of the present disclosure, provide an optical sensor. The optical sensor includes a semiconductive substrate. A light sensing region is on the semiconductive substrate. A waveguide region is configured to guide light from a wave insert, portion through a waveguide portion and to a sample holding portion. The waveguide portion includes a first dielectric layer including a first refractive index. A second dielectric layer includes a second refractive index. The second refractive index is smaller than the first refractive index. A first interconnect portion is positioned in the waveguide portion, configured to transmit electrical signal from the light sensing region to an external circuit. The sample holding portion is over the light sensing region.
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Citations
20 Claims
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1. An optical sensor, comprising:
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a semiconductive substrate; a light sensing region on the semiconductive substrate; a waveguide region configured to guide light from a wave insert portion. through a waveguide portion and to a sample holding portion, and the waveguide portion comprising; a first dielectric layer comprising a first refractive index; and a second dielectric layer comprising a second refractive index, wherein the second refractive index is smaller than the first refractive index; and a first interconnect portion positioned in the waveguide portion, configured to transmit electrical signal from the light sensing region to an external circuit, wherein the sample holding portion locates above the light sensing region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A semiconductor device, comprising:
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a semiconductive substrate; a dielectric layer over the semiconductive substrate; a reflective structure in the dielectric layer; a waveguide region configured to guide light from a wave insert portion. through a waveguide portion and to a sample holding portion, and the waveguide portion comprising the dielectric layer and the reflective structure; and a light sensing region over the semiconductive substrate, and the waveguide region disposed above the light sensing region. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification