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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 8171801 | Micro-thermistor gas pressure sensor An apparatus and method precisely measure gas pressure over a large dynamic range and with good immunity to temperature fluctuations, encompassing applications such as gas sensing, bolometer imaging and industrial process monitoring. The micro-thermistor gas pressur... | 05/08/2012 |
| 8146439 | Sensor system and method for manufacturing a sensor system A sensor system, in particular a pressure sensor system, having a substrate having a main extension plane, the substrate having at least one trench on a first side, and the trench being provided to produce a diaphragm area on a second side of the substrate diametric... | 04/03/2012 |
| 8146438 | Pressure-sensitive adhesive sheet for testing Disclosed is an adhesive sheet for inspection, which is obtained by arranging an adhesive layer on a base film. The base film and the adhesive layer are electrically conductive, and an electrically conductive path is formed between the base film and the adhesive lay... | 04/03/2012 |
| 8132465 | Sensor element placement for package stress compensation Circuits, methods, and systems that calibrate or account for packaging and related stress components in a pressure sensor. Further examples provide an improved sensor element or device. One example provides one or more sensing elements on the diaphragm and near the ... | 03/13/2012 |
| 8127619 | Pressure sensor including switchable sensor elements A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second refe... | 03/06/2012 |
| 8127618 | Implantable micro-electromechanical system sensor The disclosure relates in some aspects to an implantable pressure sensor and a method of measuring pressure. In some embodiments pressure may be measured through the use of an implantable lead incorporating one or more pressure sensors. In some aspects a pressure se... | 03/06/2012 |
| 8069732 | Ultra-miniature multi-hole probes having high frequency, high temperature responses Embodiments of an ultra miniature pressure probe are disclosed. The pressure probe can include a probe body, a plurality of transducer ports, and a plurality of transducers. The probe body can be a longitudinal tubular body having a front conical end. The transducer... | 12/06/2011 |
| 8065919 | MEMS device and method for fabricating the same A MEMS device includes: a substrate having a through hole; a first film provided on a top surface of the substrate with a bottom surface of the first film exposed in the through hole; a second film provided over the first film with an air gap interposed therebetween... | 11/29/2011 |
| 8037771 | Electronic pressure-sensing device An electronic pressure-sensing device 100 comprising a transistor 105 located on a substrate 110. The device also comprises a linker arm 115 that has a tip 120 which is configured to touch a contact region 125 of the substra... | 10/18/2011 |
| 7926352 | Semiconductor pressure sensor and data processing device For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N p... | 04/19/2011 |
| 7926354 | Semiconductor pressure sensor and method of producing the same A diaphragm made of a polysilicon film is provided above a first main surface of a silicon substrate. Four gauge resistors are provided on the top face of the diaphragm. A through hole for exposing the bottom face of the diaphragm is formed in the silicon substrate.... | 04/19/2011 |
| 7926353 | Pressure sensor including switchable sensor elements A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second refe... | 04/19/2011 |
| 7918138 | Wireless microelectromechanical systems (MEMS) pressure sensor with built-in calibration A wireless microelectromechanical system (MEMS) pressure sensor with built in calibration. An actuator is coupled with a pressure sensing device to enable the pressure to be calibrated against the known pressure exerted by the actuator. The sensing component is conf... | 04/05/2011 |
| 7900518 | Microfabricated implantable wireless pressure sensor for use in biomedical applications and pressure measurement and sensor implantation methods A variable capacitor, a microfabricated implantable pressure sensor including a variable capacitor and an inductor, and related pressure measurement and implantation methods. The inductor may have a fixed or variable inductance. A variable capacitor and pressure sen... | 03/08/2011 |
| 7900520 | Pressure sensor device A semiconductor pressure sensor for a pressure sensor device has a pressure detection element which includes a membrane made of semiconductor material, particularly silicon. The sensor includes a support having a three-dimensional body passed through by a detection ... | 03/08/2011 |
| 7900519 | Microfluidic measuring tool to measure through-silicon via depth A tool to measure the depth of one or more through-silicon vias, the tool fabricated in silicon to include a microfluidic chamber that is positioned over the one or more through-silicon vias, further including a fluid actuation chamber to inject fluid into the micro... | 03/08/2011 |
| 7861597 | High temperature transducer using SOI electronics There is disclosed a high temperature pressure sensing system which includes a SOI Wheatstone bridge including piezoresistors. The bridge provides an output which is applied to an analog to digital converter also fabricated using SOI technology. The output of the an... | 01/04/2011 |
| 7841241 | Surface acoustic wave (SAW) based pressure sensor A SAW based pressure sensor having a base 2a with an aperture 3 formed therein and a substrate 4 mounted on the base so as to completely overlie the aperture. The substrate 4 is adhered to base 2a so as to form a flui... | 11/30/2010 |
| 7832278 | Multi-chip package Subject matter disclosed herein may relate to packaging for multi-chip semiconductor devices as may be used, for example, in tire pressure monitoring systems. ... | 11/16/2010 |
| 7832279 | Semiconductor device including a pressure sensor A semiconductor device includes a first cavity within a semiconductor substrate and a second cavity within the semiconductor substrate. The second cavity is open to an atmosphere and defines a first lamella between the first cavity and the second cavity. The semicon... | 11/16/2010 |
| 7798008 | Pressure sensor module and method for manufacturing the same For a pressure sensor module comprising a printed circuit board and a pressure cell, wherein the pressure cell has a measuring opening, and the pressure cell is encapsulated by injection molding compound in such a manner that the measuring opening is kept open, the ... | 09/21/2010 |
| 7793550 | Sensor device including two sensors embedded in a mold material A sensor device. One embodiment provides a first sensor having a first sensor surface. The first sensor surface is exposed to allow sensing of a first variable. A second sensor has a second sensor surface. The second sensor surface is sealed to inhibit sensing of th... | 09/14/2010 |
| 7703329 | Pressure sensor There is provided a pressure sensor having: a sensor chip (30) which detects a pressure; a base plate (20 (21, 22)) which supports the sensor chip (30); and a support diaphragm (50) which is bonded to the base plate (20 (... | 04/27/2010 |
| 7647835 | Pressure sensor stress isolation pedestal A pressure sensor stress isolation pedestal including a pressure sensor mounted in a housing with a circuit board. The sensor is bonded to a relatively tall pedestal. The height of the pedestal creates a stiff mounting structure that isolates the sensor from mechani... | 01/19/2010 |
| 7647834 | Pressure sensor disconnect detection for a blood treatment device A system is disclosed for detecting an electrical sensor, the system includes a sensor signal processing circuit further comprising an input port to receive a connector including the output signal lines of the sensor, a resistor connected to the output signal line o... | 01/19/2010 |
| 7610812 | High accuracy, high temperature, redundant media protected differential transducers A semiconductor chip for use in fabricating pressure transducers, including: a semiconductor wafer having a top and a bottom surface, a layer of an insulating material formed on the top surface, the bottom surface having at least two recesses of substantially equal ... | 11/03/2009 |
| 7607355 | Semiconductor device A semiconductor device is equipped with a semiconductor sensor chip for detecting pressure variations that is arranged inside of a hollow cavity of a housing, wherein an opening is formed in a prescribed region of the housing, which is not positioned opposite to the... | 10/27/2009 |
| 7603908 | Semiconductor pressure sensor, manufacturing method thereof, and die for molding semiconductor pressure sensor A semiconductor pressure sensor is provided with a semiconductor pressure sensor part that converts a pressure to an electrical signal, a sensor module in which said semiconductor pressure sensor part and a terminal of which part is extended to the outside are inser... | 10/20/2009 |
| 7594440 | Highly sensitive piezoresistive element A mechanical-to-electrical sensing structure has first and second movable blocks formed in a handle layer. A first hinge is coupled to the first and second movable blocks and configured to resist loads other than flexing of the first hinge. The first hinge is formed... | 09/29/2009 |
| 7578196 | Integrated pressure sensor with double measuring scale and a high full-scale value In a pressure sensor with double measuring scale: a monolithic body of semiconductor material has a first main surface, a bulk region and a sensitive portion upon which pressure acts; a cavity is formed in the monolithic body and is separated from the first main sur... | 08/25/2009 |
| 7549344 | Pressure sensor package and electronic part A pressure sensor package of the present invention includes a pressure sensor including a cavity disposed within a semiconductor substrate, wherein a region of the substrate above the cavity comprises a diaphragm section; a plurality of pressure-sensitive elements, ... | 06/23/2009 |
| 7540198 | Semiconductor device It is an object of the present invention to provide a small, yet high sensitivity semiconductor device. A semiconductor pressure sensor 1 includes an SOI substrate 2 on which a diaphragm 3 is formed and four piezo resistor elements R1 to ... | 06/02/2009 |
| 7536917 | Pressure sensor A pressure sensor comprises: a case body including a pressure introduction port; a sensor chip including a top surface, a bottom surface, a sensing member disposed on the top surface and a concave member disposed on the bottom surface; a ceramic substrate including ... | 05/26/2009 |
| 7530276 | Semiconductor pressure sensor and manufacturing method thereof This invention aims to realize reduction in size without impairing measurement accuracy or connection reliability in a semiconductor pressure sensor in which a glass substrate is adhered to a rear-surface side of a pressure-sensitive chip in which piezoresistive pre... | 05/12/2009 |
| 7520173 | Interdigitated electrode for electronic device and electronic device using the same Provided are an interdigitated electrode (IDE) for an electronic device, which includes a plurality of anodes and a plurality of cathodes arranged radially in an alternating fashion for electrical insulation from one another, and an electronic device using the same.... | 04/21/2009 |
| 7493823 | Pressure transducer with differential amplifier A semiconductor-based pressure sensor adapted for enhanced operation with controls electronics includes a pressure transducer having an output formed on a silicon die and an amplifier having an input and an output and fabricated on the silicon die next to the pressu... | 02/24/2009 |
| 7484418 | Ultra miniature multi-hole probes having high frequency response A pressure probe includes a longitudinal tubular housing symmetrically disposed about a central axis and having an ultra miniature conical front end and an opened back end. A plurality of aperture ports having an opening are disposed about the front end. A plurality... | 02/03/2009 |
| 7464603 | Sensor component with a cavity housing and a sensor chip and method for producing the same A semiconductor sensor component including a housing with a cavity and a sensor chip and a method for producing the same are described herein. The housing includes an opening to the surroundings of the housing and the sensor chip includes a sensor region which faces... | 12/16/2008 |
| 7451656 | Semiconductor device embedded with pressure sensor and manufacturing method thereof The method for promoting the size reduction, the performance improvement and the reliability improvement of a semiconductor device embedded with pressure sensor is provided. In a semiconductor device embedded with pressure sensor, a part of an uppermost wiring is us... | 11/18/2008 |
| 7448278 | Semiconductor piezoresistive sensor and operation method thereof A semiconductor piezoresistive sensor, which is electrically connected with a circuit, includes a semiconductor base, at least one piezoresistive element and a conductive layer. The semiconductor base includes a diaphragm and a base. The base is disposed adjacent to... | 11/11/2008 |
