Miniaturized integrated sensor platform
First Claim
1. An integrated biochemical sensor package comprising:
- a platform;
a waveguide having an upper surface affixed to said platform, said waveguide having a thin layer of chemical coating affixed on said upper surface;
first and second reflective fixtures coupled to opposite extremes of said waveguide and touching said platform;
a light source underlying said first reflective fixture and arranged to emit light outward towards said first reflective fixture;
a detector means embedded in said platform and underlying said second reflective fixture; and
a power source embedded in said platform and having a first lead coupled to said light source and a second lead coupled to said detector.
1 Assignment
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Accused Products
Abstract
A miniaturized integrated sensor (50) useful for indicating the presence of a sample analyte is disclosed. The sensor (50) has a platform (52) with an upper surface (53) and a detector (62), light source (60), waveguide (58), and reflective fixtures (60,62) embedded in the platform (52). The light source (60) is preferably a light emitting diode and sits in a cup-shaped dimple (68) that directs light from the light source (60) toward one of the reflective fixtures (64) to uniformly distribute light across the waveguide (58). The waveguide (58) is coupled to an upper surface (53) of the sensor platform (52) and is coated with a thin film of indicator chemistry (70) which interacts with the sample analyte to produce optic signal changes that are measurable by the detector (62). A lead frame (51) in the platform (52) has pins (54, 55, 56) which provide the interface to the outside world. In one embodiment, sensor package (100) has a unique shape that requires a predetermined insertion and removal into an instrument harness or other similar application.
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Citations
18 Claims
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1. An integrated biochemical sensor package comprising:
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a platform; a waveguide having an upper surface affixed to said platform, said waveguide having a thin layer of chemical coating affixed on said upper surface; first and second reflective fixtures coupled to opposite extremes of said waveguide and touching said platform; a light source underlying said first reflective fixture and arranged to emit light outward towards said first reflective fixture; a detector means embedded in said platform and underlying said second reflective fixture; and a power source embedded in said platform and having a first lead coupled to said light source and a second lead coupled to said detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A miniaturized integrated biochemical sensor for indicating the presence of a given sample based comprising:
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a sensor platform having a substantially rectangular box shape form, said platform having a substantially at upper surface and at least one end; a waveguide coupled to said upper surface of said platform, said waveguide having a first end and a second end opposite from one an other; a first reflective fixture coupled to said first end of said waveguide and touching said upper surface of said platform; a second reflective fixture coupled to said second end of said waveguide and touching said upper surface of said platform; a light source embedded in said platform under said first reflective fixture; a detector embedded in said platform opposite said light source about said one end of said platform and underlying said second reflective fixture; and a power source embedded in said platform, the power source having a first lead coupled to said light source and a second lead coupled to said detector. - View Dependent Claims (14, 15, 16, 17)
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18. A sensor package suitable for biochemical sensing applications comprising:
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a substantially rectangular device platform; a light transmissive waveguide coupled to an upper surface of said platform and a surface with an indicator chemistry coat deposited thereon; first and second reflective fixtures coupled to opposite ends of said waveguide about said platform; a lead frame embedded in said platform and having a plurality of pins extending out from one end of said platform, said lead frame having a first dimple underlying said first reflective fixture and a second dimple underlying said second reflective fixture; a light source sitting in said first dimple under said first reflective fixture; a detector means sitting in said second dimple under said second reflective fixture, said detector means configured about said platform to optically receive light from said light source via said first reflective fixture through said waveguide and then through said second reflective fixture; and a power source embedded in said platform and having a first lead coupled to said light source and a second lead coupled to said detector means.
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Specification