Integrated microfluidics system
First Claim
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1. A microfluidic device comprising:
- an integrated circuitry located in a first region of a semiconductor substrate;
a trench located in a second region of the semiconductor substrate and filled with an epitaxial layer;
a light source located in a first region of the epitaxial layera light detector located in a second region of the epitaxial layer; and
a microfluidic flow channel within a dielectric layer disposed over the semiconductor substrate and the epitaxial layer.
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Abstract
A microfluidic system-on-a-chip includes signal processing, light generation and detection, and fluid handling functions formed on a single substrate. The disclosed integrated system has a smaller footprint than device structures where individual components are manufactured separately and then assembled. Moreover, the integrated system obviates alignment challenges associated with conventionally packaged architecture.
24 Citations
20 Claims
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1. A microfluidic device comprising:
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an integrated circuitry located in a first region of a semiconductor substrate; a trench located in a second region of the semiconductor substrate and filled with an epitaxial layer; a light source located in a first region of the epitaxial layer a light detector located in a second region of the epitaxial layer; and a microfluidic flow channel within a dielectric layer disposed over the semiconductor substrate and the epitaxial layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 18)
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9. A method of forming a microfluidic device, comprising:
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forming an integrated circuitry in a first region of a semiconductor substrate; forming a first trench in a second region of the semiconductor substrate; filling the first trench with an epitaxial layer; forming a light source within a second trench formed in a first region of the epitaxial layer; forming a light detector within a third trench located in a second region of the epitaxial layer; depositing a dielectric layer over the semiconductor substrate, the dielectric layer covering the light source and the light detector; and forming a microfluidic flow channel within the dielectric layer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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19. A microfluidic device comprising:
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an integrated circuitry located in a semiconductor substrate; a light source located in a first region of an epitaxial layer that is disposed over the semiconductor substrate; a light detector located in a second region of the epitaxial layer; and a microfluidic flow channel located within a dielectric layer that is disposed over the semiconductor substrate. - View Dependent Claims (20)
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Specification