摘要:
A surface acoustic wave device has superior electrical power resistance that is obtained by improving stress migration resistance of electrodes. In order to form at least one electrode, for example, on a θ rotation Y-cut (θ=36° to 42°) LiTaO3 piezoelectric substrate, an underlying electrode layer including Ti or Cr as a primary component is formed, and an Al electrode layer including Al as a primary component is then formed on this underlying electrode layer. The Al electrode layer is an oriented film grown by epitaxial growth and is also a polycrystalline thin film having a twin structure in which a diffraction pattern observed in an X-ray diffraction pole figure has a plurality of symmetry centers.
摘要:
A surface acoustic wave device has superior electrical power resistance that is obtained by improving stress migration resistance of electrodes. In order to form at least one electrode, for example, on a θ rotation Y-cut (θ=36° to 42°) LiTaO3 piezoelectric substrate, an underlying electrode layer including Ti or Cr as a primary component is formed, and an Al electrode layer including Al as a primary component is then formed on this underlying electrode layer. The Al electrode layer is an oriented film grown by epitaxial growth and is also a polycrystalline thin film having a twin structure in which a diffraction pattern observed in an X-ray diffraction pole figure has a plurality of symmetry centers.
摘要:
A surface acoustic wave device has superior electrical power resistance that is obtained by improving stress migration resistance of electrodes. In order to form at least one electrode, for example, on a &thgr; rotation Y-cut (&thgr;=36° to 42°) LiTaO3 piezoelectric substrate, an underlying electrode layer including Ti or Cr as a primary component is formed, and an Al electrode layer including Al as a primary component is then formed on this underlying electrode layer. The Al electrode layer is an oriented film grown by epitaxial growth and is also a polycrystalline thin film having a twin structure in which a diffraction pattern observed in an X-ray diffraction pole figure has a plurality of symmetry centers.
摘要:
A surface acoustic wave device includes a piezoelectric substrate made of a LiNO3 or LiTaO3 single crystal, and an electrode having power endurance. After a damaged layer formed on a surface of the piezoelectric substrate is removed, an under-electrode layer including at least one of Ti and Cr as a main component is formed by a vacuum deposition process at a temperature of about 100° C. or less, and an Al electrode layer including Al or an Al main component is then formed on the under-electrode layer. The Al electrode layer has a twin crystal structure in which the Al crystal is oriented in a desired direction such that the (111) crystal plane of Al substantially coincides with the Z crystal direction of the piezoelectric substrate.
摘要:
A first inert gas (5) is supplied into a reaction space (1) and a high-frequency power supply (4) applies a high-frequency electric field so that a primary plasma (6) composed of the first inert gas which has been made into the plasma is ejected from the reaction space. A mixed gas area (10) in which a mixed gas (8) having a second inert gas (12) as a main ingredient and a proper amount of a reactive gas (13) mixed is formed. The primary plasma collides into the mixed gas area to generate a secondary plasma (11) composed of the mixed gas which has been made into the plasma, and the secondary plasma is sprayed on a processed object (S) to carry out a plasma processing. Accordingly, the plasma processing is carried out in a wide range by an atmospheric pressure plasma generated by a small input power.
摘要:
In at least one aspect, a semiconductor light emitting device may include a first lead, a second lead provided being apart from the first lead, a semiconductor light emitting element provided on the first lead, a wiring electrically connecting the semiconductor light emitting element and the second lead, a first resin being optically transparent to light from the semiconductor light emitting element, the first resin covering the semiconductor light emitting element, and a second resin provided on the first resin, the first lead and the second lead, and being optically transparent to light from the semiconductor light emitting element, wherein a part of the first lead which is covered with the second resin is symmetric with respect to a vertical line passing through the semiconductor light emitting element in a cross-sectional view cut along a plane, the plane passing the semiconductor light emitting element and being parallel with a direction to which the first lead is extended.
摘要:
According to one embodiment, an LED module includes a substrate, an interconnect layer, a light emitting diode (LED) package, and a reflection member. The interconnect layer is provided on the substrate. The LED package is mounted on the interconnect layer. The reflection member is provided on a region in the substrate where the LED package is not mounted and has a property of reflecting light emitted from the LED package. The LED package includes a first lead frame, a second lead frame, an LED chip, and a resin body. The first lead frame and the second lead frame are arranged apart from each other on the same plane. The LED chip is provided above the first lead frame and the second lead frame, with one terminal connected to the first lead frame and one other terminal connected to the second lead frame. The resin body covers the LED chip, covers an upper surface, a part of a lower surface, and a part of an end surface of each of the first lead frame and the second lead frame, and exposes a remaining part of the lower surface and a remaining part of the end surface.
摘要:
A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap in the reflective region is smaller than a gap in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
摘要:
There is provided a dry powder pharmaceutical composition for inhalation useful for preventing and/or treating influenza virus infections contains as a medicinal component a compound represented by formula (I): and optionally a compound represented by formula (II): , a pharmacologically acceptable salt thereof, or a hydrate thereof.