Abstract:
Magnetically actuated micro-electro-mechanical capacitor switches in laminate are disclosed. According to one embodiment, an apparatus comprises a first layer comprising a coil and magnetic element, the magnetic element made from one of nickel and iron; a second layer comprising a flexible member, wherein a permanent magnet is attached to the flexible member; a conductive plate having an insulating dielectric coating, the conductive plate attached to one of the flexible member or a magnet; and a third layer comprising a transmission line and magnetic material, wherein the transmission line comprises one or more of a signal conductor and one or more ground conductors in near proximity
Abstract:
A plate manufactured to enable samples of cells, micro-organisms, proteins, DNA, biomolecules and other biological media to be positioned at specific locations or sites on the plate for the purpose of performing addressable analyses on the samples. Preferably, some or all of the sites are built from a removable material or as pallets so that a subset of the samples of interest can be readily isolated from the plate for further processing or analysis. The plate can contain structures or chemical treatments that enhance or promote the attachment and/or function of the samples, and that promote or assist in their analyses. Use of the plate advantageously enables the selection and sorting of cells based on dynamic phenomena and the rapid establishment of stable tranfectants.
Abstract:
A plate manufactured to enable samples of cells, micro-organisms, proteins, DNA, biomolecules and other biological media to be positioned at specific locations or sites on the plate for the purpose of performing addressable analyses on the samples. Preferably, some or all of the sites are built from a removable material or as pallets so that a subset of the samples of interest can be readily isolated from the plate for further processing or analysis. The plate can contain structures or chemical treatments that enhance or promote the attachment and/or function of the samples, and that promote or assist in their analyses.
Abstract:
An antenna whose resonance and electromagnetic radiation properties can be modified by environmental conditions, acoustic conditions, and the like. The reconfiguring antenna acts to facilitate wireless transmission of information about the local environment without the need for local power.
Abstract:
A directionally-sensitive device (10) for detecting and processing vibration waves includes an array of polymeric optical waveguide resonators (28) positioned between a light source (24), such as an LED array (24), and a light detector (26), such as a photodiode array (26). The resonators (28) which are preferably oriented substantially perpendicularly with respect to incoming vibration waves, vibrate when a wave is detected, thus modulating light signals that are transmitted between the light source (24) and the light detector (26). The light detector (26) converts the modulated light into electrical signals which, in a preferred embodiment, are used to drive either the speaker of a hearing aid (32) or the electrode array (39) of a cochlear implant. The device (10) is manufactured using a combination of traditional semiconductor processes and polymer microfabrication techniques.
Abstract:
A low loading capacitance on-chip electrostatic discharge (ESD) protection circuit for compound semiconductor power amplifiers is disclosed, which does not degrade the circuit RF performance. Its principle of operation and simulation results regarding capacitance loading, leakage current, degradation to RF performance are disclosed. The design, loading effect over frequency, robustness over process and temperature variation and application to an RF Power amplifier is presented in detail. The ESD circuit couples an input to ground during ESD surges through a diode string coupled to the input, and a transistor switch or Darlington pair having its gate coupled to and triggered by the diode string. The Darlington pair couples the input to ground when triggered through a low impedance path in parallel to the diode string. A reverse diode also couples ground to the input on reverse surges.