摘要:
A semiconductor scanner substrate includes a vibrating structure of a mirror supported by a beam projecting from a frame. Strain sensing piezoresistors are formed in a base region of the beam adjacent to the frame. Metal interconnections are formed in the frame to connect the piezoresistors in a bridge circuit for sensing bending deformation or in a bridge circuit for sensing twisting deformation. Two of the piezoresistors extend alongside the lateral edges of the beam in the longitudinal direction of the beam, and these resistors are connected as adjacent arms in the bridge circuit for sensing the twisting deformation accurately.
摘要:
On a through-electrode (7) formed by filling a conductive material into a though hole of a substrate, nano-metal particles are adhered to form a connection electrode (9). An LED element (3) is electrically connected to the through-electrode (7) via the connection electrode (9). The nano-metal particles can be applied into a desired shape by an inkjet method or a dispenser method, and hence a light emitting device (1) having high electrical connection reliability is realized at low cost.
摘要:
A wireless communication apparatus is provided. The wireless communication apparatus includes wireless communication functions conforming to incompatible first and second communication standards. The wireless communication apparatus includes a first transceiver that performs a wireless communication operation conforming to the first communication standard and includes a first transmission/reception port, a second transceiver that performs a wireless communication operation conforming to the second communication standard and includes a second transmission/reception port, a shared antenna shared by the first and the second transceivers, an antenna connecting unit that connects the shared antenna and the first and the second transmission/reception ports, and a control unit that controls the communication operations in the first and the second transceivers.
摘要:
A urethane (meth)acrylate composition includes a product of a reaction of a polyester polyol made from a polycarboxylic acid and a polyhydric alcohol, a polyisocyanate, and an active hydrogen-containing (meth)acrylate. Part of the polyhydric alcohol is a diol having a straight chain of 3 to 7 carbon atoms and a side chain on the straight chain. The polyisocyanate includes at least one of hexamethylene diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate, and tetramethylene diisocyanate.
摘要:
An electromagnetic relay has a solenoid formed from a wound coil, a movable iron core that is reciprocated upwardly and downwardly in an axial hole of the solenoid, and a movable contact point that reciprocates together with the movable iron core. The movable contact point is contacted and separated with and from a fixed contact point for opening and closing a contact point. An arc generated at a time of opening and closing of the contact point is flowed, in a predetermined direction, by the magnetic field of at least a single permanent magnet placed at a side of the fixed contact point and the movable contact point that are contacted and separated with and from each other. Coil terminals are connected to leader lines of the coil, at least at a single side of the flow of the arc.
摘要:
A system in-package test inspection apparatus for measuring and evaluating the high-speed/high frequency characteristic of a system in-package through an electrode pad in which I/O terminals are formed on one side of an LSI package containing metallic wiring internally and plural LSI chips are stacked in multiple layers on the other face while electric connection between the LSI chip and the LSI package and the electric connection between the LSI chips are implemented, the system in-package test inspection apparatus comprising: a printed wiring substrate to which the I/O terminals of the system in-package are connected to enable transmission of high speed and high frequency signals; LSI chip driving means for driving the LSI chip; a contact probe having a contact electrode and for transmitting a high frequency signal; evaluation signal generating means for supplying a high frequency evaluation signal to the contact probe; output signal detecting means for detecting an output signal of the system in-package through the printed wiring board; and analyzing means for analyzing a signal detected by the output signal detecting means, wherein by contacting the contact electrode of the contact probe with an electrode pad formed on the LSI chip, the evaluation signal is inputted to the LSI chip not through metallic wiring within the LSI package.