Analog Devices International Unlimited Company

Analog Devices Global

Analog Devices Global Unlimited Company

Donal McAuliffe

Alfonso Berduque

Raymond J Speer

Brendan Cawley

William Allan Lane

Patrick Martin McGuinness

Helen Berney

Youri Ponomarev

Edward John Coyne

Seamus Paul Whiston

Shane Patrick Geary

Rizwan Gill

Bernard Patrick Stenson

Michael C W Coln

David J Clarke

Oliver J Kierse

Brian Anthony Moane

Stephen Denis Heffernan

Fergus John Downey

John Twomey

Ramji Lakshmanan

Christina B McLoughlin

Rigan McGeehan

Roman Trogan

Christophe Antoine

Shane Geary

Brian Sweeney

Himanshu Jain

Brian J Coffey

Gerald Blaney

Patrick Mcguinness

Electrochemical sensors () include at least two electrodes (A, HOB), over which an electrolyte () is formed. The electrodes are isolated from one another in order for reduction/oxidation reactions to occur at the electrodes and for an electric current to flow therebetween. The present disclosure describes the use of a barrier () in the electrochemical sensor that is configured to isolate electrodes from one another for the purpose of preventing electrode shorting. Additionally, the physical structure of the barrier can also act as a stencil for shaping the electrodes.

Electrochemical sensor with barrier isolating the electrodes from each other and method of forming thereof

An electrochemical sensor is provided which may be formed using micromachining techniques commonly used in the manufacture of integrated circuits. This is achieved by forming microcapillaries in a silicon substrate and forming an opening in an insulating layer to allow environmental gases to reach through to the top side of the substrate. A porous electrode is printed on the top side of the insulating layer such that the electrode is formed in the opening in the insulating layer. The sensor also comprises at least one additional electrode. The electrolyte is then formed on top of the electrodes. A cap is formed over the electrodes and electrolyte. This arrangement may easily be produced using micromachining techniques.

Electrochemical sensor, and a method of forming an electrochemical sensor

A microfabricated thermal platform can be formed over a substrate, such as a silicon wafer, that may form part of the platform. The substrate is coated in a thermally-insulating material, which may be an organic polymer such, as polyimide or SUS. The surface of the thermally-insulating material may include an arrangement of one or more thermal sites, with each site having a reaction plate (or thermal plate) over which chemical reactions may occur. A heating element may be positioned beneath each reaction plate. A fluidic medium, such as a liquid or a gas, may be disposed over the thermal sites. One application is in chemical and biological reactions. In such reactions, the fluidic medium may be an aqueous solution which comprises reagents for those reactions. The fluidic medium may be an ionically conducting fluid, organic solution or a gas. Precise temperature control enables the correct reactions.

Thermal platform and a method of fabricating a thermal platform

A wearable sensor for measuring a parameter of human skin is described and includes a flexible body comprising sensor components formed on, adjacent or within the flexible body and configured to generate a first signal indicative of the parameter of human skin; microfabricated processing circuitry formed within the flexible body, coupled to the sensor components and configured to process the first signal to produce a second signal; and an antenna, formed on, adjacent or within the flexible body, the antenna being coupled to the processing circuitry and configured to transmit the second signal to an external device.

Wearable sensor and method of forming thereof

A cap for use with devices, such as sensors. The cap includes protrusions on its underside, to restrict the movement of a liquid or a gel placed under cap. The protrusions may take the form of walls or pillars, depending on the application. As such, the cap retains the liquid or gel in a specified position on the device. For example, an electrochemical sensor may require a liquid electrolyte to remain in place over one or more electrodes. The protrusions may not extend far enough to touch the device, but rather leave a small gap. However, because of the surface tension of the liquid, the liquid generally stays within the protrusions.

Retaining cap

Electrochemical sensors can include at least two electrodes, over which an electrolyte is formed. The electrodes can be isolated from one another in order for reduction/oxidation reactions to occur at the electrodes and for an electric current to flow therebetween. The present disclosure describes the use of a barrier in the electrochemical sensor that is configured to isolate electrodes from one another for the purpose of preventing electrode shorting. Additionally, the physical structure of the barrier can also act as a stencil for shaping the electrodes.

Electrochemical sensor and method of forming thereof

Electrochemical sensors include a housing within which an electrolyte is provided over the electrodes. The housing includes an active region, which is the area around the electrodes in which the electrolyte must be positioned to ensure correct operation of the device. The inner walls, base and ceiling of the housing are coated in either hydrophobic or hydrophilic materials, or both, so as to encourage the electrolyte to take a position over the active region, which is defined by the position of the electrodes. In some electrochemical sensors, a combination of hydrophobic and hydrophilic materials is used and the materials can be arranged in a pattern, which encourages the electrolyte to take a position over the active region.

A gas sensor package is disclosed. The gas sensor package can include a housing defining a first chamber and a second chamber. An electrolyte can be provided in the first chamber. A gas inlet can provide fluid communication between the second chamber and the outside environs. The gas inlet can be configured to permit gas to enter the second chamber from the outside environs. An integrated device die can be mounted to the housing. The integrated device die can comprise a sensing element configured to detect the gas. The integrated device die can have a first side exposed to the first chamber and a second side exposed to the second chamber, with the first side opposite the second side.

Gas sensor packages

A protection device is provided that exhibits a turn on time of order of one nanosecond or less. Such a device provides enhanced protection for integrated circuits against electrostatic discharge events. This in turn reduces the risk of device failure in use. The protection device can include a bipolar transistor structure connected between a node to be protected and a discharge path.

Overvoltage protection device and method

A transistor is provided in which an elongate drain region has end portions formed in parts of the transistor where features of the transistor structure have been modified or omitted. These structures lessen the current flow or electric field gradients at the end portions of the drain. This provides a transistor that has improved on-state breakdown performance without sacrificing off state breakdown performance.

Transistor

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Raheen, Ireland

Donal McAuliffe