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US 8,931,328 B2Granted
Multilayer structure having a microfluidic channel and a system for detecting leakage from the microfluidic channel, and method of detecting leakage in a microfluidic device
AssigneeSTMicroelectronics S.r.l.
InventorsGiorgio Allegato, Matteo Perletti, Laura Oggioni, Francesco Tripodi
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Abstract
A multilayer structure includes: a microfluidic circuit, delimited at least in part by a first sealing structure; a fluid-tight chamber delimited in part by a second sealing structure and in part by the first sealing structure, which is arranged in the fluid-tight chamber and is configured to provide a signal indicative of a leakage between the microfluidic circuit and the fluid-tight chamber.
Claims28
A multilayer structure comprising:
- a first microfluidic circuit;
- a first sealing structure that delimits at least in part the first microfluidic circuit;
- a first chamber delimited in part by the first sealing structure;
- a second sealing structure that delimits in part the first chamber;
- and
- a first sensor arranged in the first chamber and configured to provide a signal indicative of leakage between the first microfluidic circuit and the first chamber.
3 more elements
A system comprising:
- a control unit and
- a first microfluidic device coupled to the control unit and including:
- a first microfluidic circuit;
- a first sealed chamber, the first microfluidic circuit located inside of the first sealed chamber and fluidly isolated from the first sealed chamber;
- and
- a first sensor arranged in the first sealed chamber and configured to provide a leakage signal indicative of leakage between the first microfluidic circuit and the first sealed chamber.
3 more elements
A method, comprising:
- providing fluid through a microfluidic circuit of a microfluidic device, the microfluidic circuit being sealed from a chamber;
- detecting leakage in the microfluidic device between the microfluidic circuit and the chamber using a sensor in the chamber, the detecting including:
- sensing a quantity relating to the chamber and indicative of leakage between the microfluidic circuit and the chamber.
A microfluidic device comprising:
- a sealed chamber;
- a microfluidic circuit located inside the sealed chamber;
- a sealing structure arranged between the microfluidic circuit and the chamber that fluidly isolates the microfluidic circuit from the chamber;
- and
- a sensor arranged inside the chamber, the sensor configured to sense leakage between the microfluidic circuit and the chamber when a leak occurs and provide a signal indicative of the leakage.
2 more elements
Dependencies are inferred from the claim text.