摘要:
A compact circuit device wherein a semiconductor element that performs high current switching is embedded is provided. The hybrid integrated circuit device (10) is provided with: a circuit board (12); a plurality of ceramic substrates (22A-22G) disposed on the top surface of the circuit board (12); circuit elements such as transistors mounted on the top surface of the ceramic substrates (22A-22G); and a lead (29) or the like that is connected to the circuit elements and is exposed to the outside. Furthermore, in the present embodiment, leads (28, 30, 31A-31C) are disposed superimposed in the vicinity of the center of the circuit board (12), and a circuit element such as an IGBT is disposed and electrically connected approaching the region at which the leads are superimposed. The alternating current transformed by the IGBT is output externally via the leads (31A, etc.).
摘要:
A semiconductor device having an SRAM macro which has a power-off function and facilitates a design associated with a change in storage capacity is provided. The semiconductor device has plural layout units each including a memory array having plural memory cells in an SRAM, a first peripheral circuit that writes data into the memory array and reads the data from the memory array, and a switch group that disconnects the memory array and the first peripheral circuit, and power wires.
摘要:
A compact circuit device wherein a semiconductor element that performs high current switching is embedded is provided. A lead (30) and lead (28) though which high current passes are disposed superimposed on the upper surface of a circuit board (12). Also, a plurality of ceramic substrates (22A-22F) are affixed to the circuit board (12), and transistors, diodes, or resistors are mounted to the upper surface of the ceramic substrates. Furthermore, the circuit elements such as the transistors or diodes are connected to the lead (28) or the other lead (30) via fine metal wires.
摘要:
The invention provides a connector including a housing, contacts, and an actuator. The housing includes a first depression and second depressions. The second depressions include bottom surfaces. The contacts include hooks to be disposed within the first depression. The actuator includes bosses, received in the second depressions, and a shaft, received in the first depression. The bosses each include an axial center and first and second contact portions. The distance between the axial center and the first contact portion is smaller than the distance between the axial center and the second contact portion. When the actuator is in an upright position, the first contact portions are on the bottom surfaces and the shaft is on the lower side of the hooks. When the actuator rotates to a lying position, the bosses rotate along the bottom surfaces and the shaft move to the upper side to be engaged with the hooks.
摘要:
A server system has a blade system formed of a plurality of servers that are mounted in one or a plurality of stages within a single chassis so as to have a plurality of different functions, and a management server for managing said blade system. The management server has means for grouping the plurality of mounted servers to manage for each function, means for managing the deployment of the plurality of servers within the chassis, and deployment changing means for changing the functions of the plurality servers and transposing the functions to change the deployment of the servers within the chassis. Thus, the deployment changing means makes the servers of each of the plurality of functions be arrayed in regular order within the chassis.
摘要:
Differentiation of a large number of embryonic stem cells or artificial pluripotent stem cells such as induced pluripotent stem cells can be readily induced by the following method. A substrate surface having a cell non-adhesive region on the periphery of a cell adhesive region is used, and (1) the cells are allowed to adhere to the cell adhesive region of the substrate surface in a differentiation-inducing medium; (2) the cells are subsequently allowed to grow on the cell adhesive surface to reach confluence; (3) the culture is further continued to three-dimensionally stratify the cells from the boundary with the cell non-adhesive region surrounding the cell adhesive region; and (4) a plurality of the stratified portions formed in the cell adhesive region is finally bound to one another to produce a cell agglomerate spreading over the entire cell adhesive region with a certain thickness.
摘要:
A radial pin 2 has a second end portion 2B protruded from an outer surface of a turbine casing 1 and a first end portion 2A inserted into a through hole 3 formed in the turbine casing 1, and a weld bead 4 is formed on a periphery of the second end portion 2B. A weld bead cutting device 10 has a cutting portion 12 which cuts the weld bead 4 formed on the periphery of the radial pin 2, and a support portion 20 which supports the cutting portion 12 on an end surface 2C of the second end portion 2B of the radial pin 2 such that the cutting portion 12 is movable along the periphery of the radial pin 2.