Abstract: Etch masks and methods of dicing semiconductor wafers are described. In an example, an etch mask for a wafer singulation process includes a water-soluble matrix based on a solid component and water. The etch mask also includes a plurality of particles dispersed throughout the water-soluble matrix. The plurality of particles has an average diameter approximately in the range of 5-100 nanometers. A ratio of weight % of the solid component to weight % of the plurality of particles is approximately in the range of 1:0.1-1:4.

Abstract: A method of evaluating at least one tissue type includes providing a tissue classifier comprising multiple detector arrays for each of multiple tissue types. Each detector array comprises multiple detectors and each detector comprises multiple tissue type-assigned intravascular ultrasound (IVUS) spectra. For each of the detector arrays, an input IVUS spectrum of the tissue region is compared to the tissue type-assigned IVUS spectra of each of the detectors in the detector array and it is determined whether the input spectrum corresponds to the tissue type of the detector. The results for the detector. The results for the detector arrays are combined to provide a tissue characterization of the tissue region from the multiple tissue types. One or more IVUS images can be displayed with the tissue characterization and an indication of the size of at least one of the tissue types in a selected portion of the image that is displayed.

Abstract: A medical imaging assembly includes an elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.

Abstract: This disclosure provides systems, methods and apparatus for a laminated film enclosing an array of microelectromechanical systems (MEMS) structures. In one aspect, a MEMS apparatus includes a substrate having a device region and an edge region surrounding the device region and an array of MEMS structures on the substrate at the device region. A protective layer is disposed over the array of MEMS structures. A laminated film is disposed over the protective layer and in contact with the substrate to form a seal at the edge region, where the laminated film forms a cavity between the substrate and the laminated film at the device region. The laminated film includes a moisture barrier layer facing away from the array of MEMS structures, and a desiccant layer facing toward the array of MEMS structures.

Abstract: This disclosure provides systems, methods and apparatus for a laminated film enclosing an array of microelectromechanical systems (MEMS) structures. In one aspect, a MEMS apparatus includes a substrate having a device region and an edge region surrounding the device region and an array of MEMS structures on the substrate at the device region. A protective layer is disposed over the array of MEMS structures. A laminated film is disposed over the protective layer and in contact with the substrate to form a seal at the edge region, where the laminated film forms a cavity between the substrate and the laminated film at the device region. The laminated film includes a moisture barrier layer facing away from the array of MEMS structures, and a desiccant layer facing toward the array of MEMS structures.

Abstract: A method for real-time displaying of cross-sectional images during an intravascular ultrasound (IVUS) imaging procedure includes, during an intravascular ultrasound imaging procedure, receiving electrical signals from at least one transducer in a catheter as the at least one transducer rotates and moves longitudinally along a lumen of a patient blood vessel; during the intravascular ultrasound imaging procedure, processing the received electrical signals to form a series of cross-sectional images that are longitudinally-offset from one another along a length of the lumen; during the intravascular ultrasound imaging procedure, concurrently displaying i) a most recent image and ii) a previous image that is either a) selected by the operator or b) automatically selected as having a maximum or minimum of a selected image characteristic; and, during the intravascular ultrasound imaging procedure, updating the display of the most recent image as a new image from the series of cross-sectional images is processed.

Abstract: A method for processing a sequence of ultrasound frames for display includes receiving a sequence of intravascular ultrasound (IVUS) frames of a vessel having a lumen, the sequence including a first frame and a second frame; determining one or more texture features for each of one or more regions of the first frame; determining at least one flow feature for each of the one or more regions by comparing the first and second frames; deriving a lumen border for the first frame using the one or more texture features and the at least one flow feature to characterize the one or more regions as within or outside of the lumen of the vessel; and displaying an ultrasound image of the first frame with the lumen border.

Abstract: A medical imaging assembly includes an elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.

Abstract: This disclosure provides systems, methods and apparatus for packaging a device, for example an electromechanical systems (EMS) device, with a seal. In one aspect, the EMS device includes a primary seal positioned around a perimeter of the EMS device and in contact with a substrate and a cover plate, and a secondary seal positioned around portions of an outer periphery of the primary seal and in contact with the substrate and the cover plate. The primary seal can have low outgassing and low permeability of water vapor, and the secondary seal can have high mechanical strength that does not degrade when adhered to glass.

Abstract: Radiation-curable coating compositions for a surface such as a concrete floor, which include at least one multi-functional monomer or oligomer, at least one photoinitiator, at least one glossy band matting agent, and at least one matte band matting agent are described and claimed. These low gloss coating compositions allow for application of the coating composition over an area larger than a UV radiation source, while minimizing the formation of gloss bands or gloss lines that exhibit a different level of gloss in the areas where light leakage from a side light shielding of the UV radiation source results in a very weak radiation intensity, as compared to the areas subjected to high radiation intensity. These low gloss coating compositions are optionally clear topcoat compositions.

Abstract: Radiation-curable coating compositions for a surface such as a concrete floor, which include at least one multi-functional monomer or oligomer, a polymer, at least one photoinitiator, and one or more tertiary amine compounds containing zero or one crosslinkable double bonds are described and claimed. These coating compositions allow for application of at least about 0.15 mm (6 mil) thickness of the coating composition over an area larger than a UV radiation source, without the formation of wrinkles or buckles following each pass of the UV radiation source in the areas where light leakage from a side light shielding of the UV radiation source results in a very weak radiation intensity.

Abstract: Metal-polyaniline (PANI) composites are provided together with a process of preparing such composites by an electrodeless process. The metal of the composite can have nanoscale structural features and the composites can be used in applications such as catalysis for hydrogenation reactions and for analytical detection methods employing SERS.

Abstract: Radiation-curable coating compositions for a surface such as a concrete floor, which include one or more acrylate monomers or oligomers having at least four crosslinkable double bonds, at least one photoinitiator, one or more fillers, and at least one pigment or dye are described and claimed. These coating compositions allow for application of at least 0.10 mm (4 mil) thickness of the coating composition over an area larger than a radiation source, without the formation of wrinkles along the shoulder area of each pass of the radiation source in the areas where weak intensity light from a side edge of the radiation source is capable of partially curing only a portion of the coating composition thickness. The coating compositions optionally further comprise one or more tertiary amine compounds comprising zero or one crosslinkable double bonds, the one or more tertiary amine compounds providing an amine value of at least 7.5 mg KOH per gram of the total radiation-curable resins of the coating composition.

Abstract: An optoelectronic device is disclosed that can function as an emitter of optical radiation, such as a light-emitting diode (LED), or as a photovoltaic (PV) device that can be used to convert optical radiation into electrical current, such as a photovoltaic solar cell. The optoelectronic device comprises an anode, a hole injection/transport layer, an active layer, and a cathode, where the hole injection/transport layer includes transparent conductive nanoparticles in a hole transport material.

Abstract: A method for imaging patient tissue using an intravascular ultrasound image includes inserting a catheter into a patient blood vessel. The catheter includes at least one transducer configured and arranged for insertion into a lumen of the catheter. Acoustic signals are transmitted from the at least one transducer along a series of scan lines towards patient tissue between incremental rotations of the at least one transducer. The transmitted acoustic signals include first acoustic signals having first frequency bandwidths centered at a first center frequency and second acoustic signals having second frequency bandwidths centered at a second center frequency. Corresponding echo signals reflected from patient tissue are received, transformed, processed, and displayed.

Abstract: A system and method is provided for registering a representation of a probe with an image. One embodiment of a method comprises acquiring an image of or pertaining to a heart and registering a representation of a probe which is in or adjacent to the heart with the image using a heart vector of the heart.

Abstract: A system and method of analysis for a medical image are described. A medical image is received and analyzed, and an initial border of a region within the medical image is determined based on the analysis of the medical image. A user input is received indicating one or more control points, where each of the one or more control points is located inside or outside of the initial border. A modified border of the region is determined based on the analysis and the user input, the modified border passing through the one or more control points.

Abstract: Metal-polyaniline (PANI) composites are provided together with a process of preparing such composites by an electrodeless process. The metal of the composite can have nanoscale structural features and the composites can be used in applications such as catalysis for hydrogenation reactions and for analytical detection methods employing SERS.

Abstract: Metal-polyaniline (PANI) composites are provided together with a process of preparing such composites by an electrodeless process. The metal of the composite can have nanoscale structural features and the composites can be used in applications such as catalysis for hydrogenation reactions and for analytical detection methods employing SERS.

Abstract: A method of evaluating at least one tissue type includes providing a tissue classifier comprising multiple detector arrays for each of multiple tissue types. Each detector array comprises multiple detectors and each detector comprises multiple tissue type-assigned intravascular ultrasound (IVUS) spectra. A plurality of the tissue type-assigned IVUS spectra of each detector correspond to a tissue type of the detector and a plurality of the tissue type-assigned IVUS spectra correspond to other tissue types. For each of the detector arrays, an input IVUS spectrum of the tissue region is compared to the tissue type-assigned IVUS spectra of each of the detectors in the detector array. For each of the detectors, it is determined whether the input spectrum corresponds to the tissue type of the detector based on the comparisons of the input spectrum to the tissue type-assigned spectra for that detector.