Abstract:
Disclosed is a pH sensor comprising a carrier (10) comprising a plurality of conductive tracks and an exposed conductive area (40) defining a reference electrode connected to one of said conductive tracks; a sensing device (30) mounted on the carrier and connected at least one other of said conductive tracks; an encapsulation (20) covering the carrier, said encapsulation comprising a first cavity (22) exposing a surface (32) of the sensing device and a second cavity (24) exposing the exposed conductive area, said second cavity comprising a reference electrode material (42) and an ion reservoir material (44) sharing at least one ion type with said reference electrode material, the reference electrode material being sandwiched between the exposed conductive area and the ion reservoir material. A method of manufacturing such a pH sensor is also disclosed.
Abstract:
Disclosed is an integrated circuit comprising a substrate (10) carrying a plurality of circuit elements; a metallization stack (12, 14, 16) interconnecting said circuit elements, said metallization stack comprising a patterned upper metallization layer comprising a first metal portion (20) and a second metal portion (21); a passivation stack (24, 26, 28) covering the metallization stack; a gas sensor including a sensing material portion (32, 74) on the passivation stack; a first conductive portion (38) extending through the passivation stack connecting a first region of the sensing material portion to the first metal portion; and a second conductive portion (40) extending through the passivation stack connecting a second region of the sensing material portion to the second metal portion. A method of manufacturing such an lC is also disclosed.
Abstract:
A container (100) for containing a perishable substance has a container wall (104) with an inner side (106) and an outer side (108). The wall has an electrically conductive layer (110) extending between the inner side and the outer side. The inner side faces the space (102) containing the substance. The container comprises electronic circuitry (116) having a sensor (118) for sensing a physical property or condition of the substance, and an antenna (120) for communicating an RF signal to a receiver (122), external to the container. The RF signal is indicative of the physical property or condition sensed. The sensor is positioned so as to be exposed to the space containing the substance in operational use of the container. The antenna is positioned at the outer side, or between the outer side and the electrically conductive layer, and is electrically isolated from the electrically conductive layer.
Abstract:
A sensor (100) comprising a silicon substrate (102; 202; 302; 402) having a first (202a; 302a; 402a) and a second surface (202b; 302b; 402b), integrated circuitry (104; 206; 306; 406) provided on the first surface (202a; 302a; 402a) of the silicon substrate (102; 202; 302; 402), and a sensor structure (106; 205; 305; 405) provided on the second surface (202b; 302b; 402b) of the silicon substrate (102; 202; 302; 402). The sensor structure (106; 205; 305; 405) and the integrated circuitry (104; 206; 306; 406) are electrically coupled to each other.
Abstract:
An electrochemical sensor for sensing a target substance is disclosed. In one example, the sensor discloses an electrolyte matrix, wherein the matrix reposits an electrolyte; a working electrode coupled to the electrolyte matrix at a first location; a counter electrode coupled to the electrolyte matrix at a second location; an electrical circuit, coupled to the working electrode and the counter electrode, and capable of generating an output signal in response to an electrical current which flows between the working electrode and the counter electrode in response to a presence of the target substance.
Abstract:
A bead based assay detection method (and apparatus) is for detecting an analyte, and using a device which comprises a substrate (50), a source region (S), a drain region (D) and a gate region, a channel region (65) between the source and drain regions and a nanopore passing through the substrate in electrical connection with the gate or channel region. A sample under test is drawn through the nanopore, and the sample under test comprises bioreceptors attached to a bead or a bead complex, in proportion to the presence of an analyte to be detected. A count of the beads or bead complexes is made based on modulation of a gate current.
Abstract:
Disclosed is an integrated circuit (IC) comprising a body (10) including a plurality of circuit elements; and a metallization stack over said circuit elements for interconnecting said circuit elements, wherein the metallization stack comprises a conductive layer portion (22) opposite a flexible further conductive layer portion (24) and separated therefrom by a fluid medium (26), a surface of the said flexible further conductive layer portion being exposed to an external pressure; wherein at least some of the circuit elements are arranged to determining the external pressure by measuring a capacitance across the conductive layer portion and the flexible further conductive layer portion. A method of manufacturing such an IC is also disclosed.