摘要:
According to one embodiment, a nitride semiconductor device includes a substrate and a semiconductor functional layer. The substrate is a single crystal. The semiconductor functional layer is provided on a major surface of the substrate and includes a nitride semiconductor. The substrate includes a plurality of structural bodies disposed in the major surface. Each of the plurality of structural bodies is a protrusion provided on the major surface or a recess provided on the major surface. An absolute value of an angle between a nearest direction of an arrangement of the plurality of structural bodies and a nearest direction of a crystal lattice of the substrate in a plane parallel to the major surface is not less than 1 degree and not more than 10 degrees.
摘要:
The degree of freedom of the chip layout in a semiconductor device is improved, and improvement in packaging density is aimed at.Since it becomes possible to form the wire of two directions on the pad of a memory chip by performing the over-bonding of reverse bonding by ball bonding, an effect equivalent to continuation stitch bonding of wedge bonding can be produced by ball bonding. Hereby, the degree of freedom of a chip layout and the degree of freedom of the lead layout of substrate 3 can be improved, and the packaging density on a substrate in a chip lamination type semiconductor device (memory card) can be improved.
摘要:
According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer, a second semiconductor layer and a light emitting part. The first semiconductor layer includes an n-type semiconductor layer. The second semiconductor layer includes a p-type semiconductor layer. The light emitting part is provided between the first semiconductor layer and the second semiconductor layer, and includes a plurality of barrier layers and a well layer provided between the plurality of barrier layers. The first semiconductor layer has a first irregularity and a second irregularity. The first irregularity is provided on a first major surface of the first semiconductor layer on an opposite side to the light emitting part. The second irregularity is provided on a bottom face and a top face of the first irregularity, and has a level difference smaller than a level difference between the bottom face and the top face.
摘要:
A resonator according to the embodiment includes: a substrate; a flat layered body which is formed above the substrate and is formed with at least a lower electrode, a piezoelectric film and an upper electrode; an anchor portion which fixes the layered body above the substrate; a cut-out portion inside the layered body; a tuning fork vibrator which is formed in the cut-out portion, has both ends supported by the layered body and is formed with at least a lower electrode, a piezoelectric film and an upper electrode; and an envelope which envelopes the layered body and the tuning fork vibrator in a noncontact fashion, and prevents an external force from being applied to the layered body and the tuning fork vibrator.
摘要:
A collection container for collecting and containing waste toner includes a leveling member, a detector, and at least one inlet. The leveling member levels the waste toner contained in the collection container. The detector detects an amount of the waste toner contained in the collection container. The leveling member levels the waste toner delivered to the collection container through the at least one inlet by conveying the waste toner simultaneously in a first direction toward the detector and a second direction opposite to the first direction, starting from an origination position corresponding to the at least one inlet.
摘要:
An induction device includes a first core, a coil wound around the first core, and a second core cooperating with the first core to form a closed magnetic circuit. The first core and the coil are molded by a mold resin to form a molding, and the second core is assembled to the molding.
摘要:
A multilayer printed circuit board includes an inner magnetic layer essentially consisting of magnetic material. The inner magnetic layer may be formed by an action of chemical bond or van der Waals force. The inner magnetic layer may comprise a plurality of magnetic units, each of which provides magnetism, and may be formed by magnetically coupling the magnetic units with each other by using a strong interaction. The inner magnetic layer may essentially consist of a ferrite film. The ferrite film may be formed directly on the inner conductive layer by means of an electroless plating method. The ferrite film may essentially consist of an oxide metal composition, the metal composition being represented by the formula of FeaNibZncCod, where: a+b+c+d=3.0; 2.1≦a≦2.7; 0.1≦b≦0.3; 0.1≦c≦0.7; and 0≦d≦0.15.
摘要翻译:多层印刷电路板包括基本由磁性材料组成的内部磁性层。 内部磁性层可以通过化学键或范德华力的作用形成。 内磁性层可以包括多个磁性单元,每个磁性单元提供磁性,并且可以通过使用强相互作用将磁性单元彼此磁耦合而形成。 内部磁性层可以基本上由铁氧体膜组成。 铁氧体膜可以通过化学镀方法直接形成在内导电层上。 铁氧体膜可以基本上由氧化物金属组合物组成,金属组成由式FeaNibZncCod表示,其中:a + b + c + d = 3.0; 2.1≦̸ a≦̸ 2.7; 0.1≦̸ b≦̸ 0.3; 0.1≦̸ c≦̸ 0.7; 和0≦̸ d≦̸ 0.15。
摘要:
A fitting structure for fitting a piezoelectric element to an actuator base that includes an opening that formed in the actuator base and accommodates the piezoelectric element, a receiver that inwardly protrudes from an inner circumferential edge of the opening and receives the piezoelectric element, a hole defined by an inner end of the receiver and communicates with the opening, a protrusion that protrudes from the inner end of the receiver onto the hole and faces the piezoelectric element through the hole, an adhesive part filled in a space defined by the piezoelectric element, the inner circumferential edge, and the receiver and is solidified in the space to adhere the piezoelectric element to the inner circumferential edge and the receiver, and a stopper formed on one of the receiver and protrusion and stops a capillary phenomenon of the adhesive between the piezoelectric element and the receiver and protrusion.
摘要:
A lubricant applying unit has a residual-toner collection rate X of 50% when the lubricant applying unit has not been used. The collection rate X is obtained by X=(Ta−Tb)/Ta×100, where Ta is weight per unit area of the residual toner on an area of the image carrier that has not come into contact with the lubricant applying unit, and Tb is weight per unit area of the residual toner on an area of the image carrier that has come into contact with the lubricant applying unit.
摘要:
The CMP polishing liquid of the present invention contains 1,2,4-triazole, a phosphoric acid, an oxidant, and abrasive particles. The polishing method of the present invention is a substrate polishing method for polishing a substrate with a polishing cloth while supplying a CMP polishing liquid between the substrate and the polishing cloth, in which the substrate is a substrate having a palladium layer, and the CMP polishing liquid is a CMP polishing liquid containing 1,2,4-triazole, a phosphoric acid, an oxidant, and abrasive particles.