Abstract:
A film bulk acoustic resonator is formed on a substrate. The film bulk acoustic resonator includes a layer of piezoelectric material having a first surface proximate the substrate, and a second surface distal from the substrate. The first conductive layer deposited on the first surface of the piezoelectric material includes a first portion having a surface on a different plane than a surface associated with a second portion. A method for forming the device includes depositing a first portion of a first electrode, and a piezoelectric layer onto the substrate. The method includes removing a portion of the substrate under the piezoelectric layer and under the portion of the first electrode, and depositing a second portion of the first electrode onto the piezoelectric film layer and onto the first portion of the first electrode.
Abstract:
A microelectromechanical (MEMS) resonator with a vacuum-cavity is fabricated using polysilicon-enabled release methods. A vacuum-cavity surrounding the MEMS beam is formed by removing release material that surrounds the beam and sealing the resulting cavity under vacuum by depositing a layer of nitride over the structure. The vacuum-cavity MEMS resonators have cantilever beams, bridge beams or breathing-bar beams.
Abstract:
A novel device and method for characterization of molecules is provides that improves characterization accuracy by utilizing larger numbers of reactive molecules that are smaller or shorter in chain length for the analysis procedure. Modification of markers such as nanotubes form nanotube assemblies that are easily detected using a number of surface analysis devices such as AFM and STM. The novel method shown using carbon nanotubes to mark a signature on reactive molecules permits a larger distribution and smaller molecule size of reactive molecules used in characterization of a sample molecule. The modification of the carbon nanotubes allows the characterization procedure to detect the nanotube markers more easily, thus decreasing characterization errors, and allowing faster characterization speeds.
Abstract:
A film bulk acoustic resonator is formed on a substrate having a major surface. The film bulk acoustic resonator includes an elongated stack. The elongated stack includes a layer of piezoelectric material positioned between a first conductive layer deposited on a first surface of the layer of piezoelectric material, and a second conductive layer deposited on a second surface of the layer of piezoelectric material. The elongated stack is positioned substantially perpendicular with respect to the major surface of the substrate. The first and second conductive layers are placed on the layer of piezoelectric material substantially simultaneously and in one processing step. The major surface of the substrate is in a horizontal plane and the stack of the film bulk acoustic resonator is in a substantially vertical plane. The resonator structure formed may be used either as a resonator or a filter.
Abstract:
The methods, compositions and apparatus disclosed herein are of use for nucleic acid sequence determination. The methods involve isolation of one or more nucleic acid template molecules and polymerization of a nascent complementary strand of nucleic acid, using a DNA or RNA polymerase or similar synthetic reagent. As the nascent strand is extended one nucleotide at a time, the disappearance of nucleotide precursors from solution is monitored by Raman spectroscopy or FRET. The nucleic acid sequence of the nascent strand, and the complementary sequence of the template strand, may be determined by tracking the order of incorporation of nucleotide precursors during the polymerization reaction. Certain embodiments concern apparatus comprising a reaction chamber and detection unit, of use in practicing the claimed methods. The methods, compositions and apparatus are of use in sequencing very long nucleic acid templates in a single sequencing reaction.
Abstract:
The methods, compositions and apparatus disclosed herein are of use for nucleic acid sequence determination. The methods involve isolation of one or more nucleic acid template molecules and polymerization of a nascent complementary strand of nucleic acid, using a DNA or RNA polymerase or similar synthetic reagent. As the nascent strand is extended one nucleotide at a time, the disappearance of nucleotide precursors from solution is monitored by Raman spectroscopy or FRET. The nucleic acid sequence of the nascent strand, and the complementary sequence of the template strand, may be determined by tracking the order of incorporation of nucleotide precursors during the polymerization reaction. Certain embodiments concern apparatus comprising a reaction chamber and detection unit, of use in practicing the claimed methods. The methods, compositions and apparatus are of use in sequencing very long nucleic acid templates in a single sequencing reaction.
Abstract:
A novel device and method for characterization of molecules is provides that improves characterization accuracy by utilizing larger numbers of reactive molecules that are smaller or shorter in chain length for the analysis procedure. Modification of markers such as nanotubes form nanotube assemblies that are easily detected using a number of surface analysis devices such as AFM and STM. The novel method shown using carbon nanotubes to mark a signature on reactive molecules permits a larger distribution and smaller molecule size of reactive molecules used in characterization of a sample molecule. The modification of the carbon nanotubes allows the characterization procedure to detect the nanotube markers more easily, thus decreasing characterization errors, and allowing faster characterization speeds.
Abstract:
A method and apparatus for forming a polymer array on a substrate suitable for synthesizing polymer sequences. This includes forming an array, each location of the array having at least one strand end, forming photosensitive protection on the strand ends, and selectively scanning and modulating at least one energy beam to expose a pattern on the photosensitive protection. In some embodiments, the method further includes removing a protective group from selected strand ends based on the exposed pattern. The method then includes adding a predetermined one or more polymeric subunits to the deprotected strand ends. In some embodiments the photosensitive protection includes a layer of photoresist to cover the strand ends. Some embodiments use an ultra-violet laser.
Abstract:
A film bulk acoustic resonator is formed on a substrate. The film bulk acoustic resonator includes a layer of piezoelectric material having a first surface proximate the substrate, and a second surface distal from the substrate. The first conductive layer deposited on the first surface of the piezoelectric material includes a first portion having a surface on a different plane than a surface associated with a second portion.