摘要:
A method for designing a system LSI includes the steps of dividing an algorithmic description (D1) of the system LSI into software and hardware groups, synthesizing the hardware group by behavior synthesis to create an RTL description ((D5) and a simulation description (D6), examining the circuit scale of the system LSI based on the RTL description (D5), and simulating the system LSI based on the simulation description (D6) and a software description.
摘要:
A method for designing a system LSI includes the steps of dividing an algorithmic description of the system LSI into software and hardware groups, synthesizing the hardware group by behavior synthesis to create an RTL description and a simulation description, examining the circuit scale of the system LSI based on the RTL description, and simulating the system LSI based on the simulation description and a software description.
摘要:
An epoxy resin composition comprising:(A) as a resin chief material a bisphenol A type epoxy resin having the following formula (1), ##STR1## wherein n is 0 to 10, R.sup.1 and R.sup.2 each represents a glycidyl group, and A.sup.1 to A.sup.8 each represents a hydrogen atom or a bromine atom;(B) as an epoxy resin curing agent,(b1) a bisphenol A or a brominated product thereof having formula (1) (wherein n is 0, R.sup.1 and R.sup.2 each represents a hydrogen atom, and A.sup.1 to A.sup.4 each represents a hydrogen atom or a bromine atom), or(b2) a novolac resin of a bisphenol A or a brominated product thereof that is obtained by linking two or more molecules of a bisphenol A or a brominated product thereof having formula (1) (wherein n is 0, R.sup.1 and R.sup.2 each represents a hydrogen atom, and A.sup.1 to A.sup.4 each represents a hydrogen atom or a bromine atom), through a methylene group(s) at any of A.sup.1 to A.sup.4 ; and(C) as an additive, a polymeric polyhydroxypolyether represented formula (1) (wherein n is 10 to 1,000, R.sup.1 and R.sup.2 each represents an alkyl group or hydroxylated alkyl group, and A.sup.1 to A.sup.8 each represents a hydrogen atom or a bromine atom).
摘要:
A method of preparing a large-current printed circuit board comprises inserting a fastener with a bottom flange in a through-hole formed in a printed circuit board so that the bottom flange is engaged with a surface of the printed circuit board, putting a washer having substantially the same outer diameter so the flange around the fastener at the other surface of the board, forming a radial extension at the outer side of the washer by caulking the fastener, whereby the fastener is fixed to the printed circuit board by means of the radial extension and the bottom flange wherein the washer is interposed between the radial extension and the printed circuit board.
摘要:
A thermosetting insulating resin paste including 100 parts by weight of an epoxy resin containing a diglycidyl type liquid epoxy resin as a main component and based on the parts by weight of the epoxy resin, 0.5 to 10 parts by weight of dicyandiamide as a setting agent. It further contains 1 to 15 parts by weight of a phenoxy resin, 0.1 to 8 parts by weight of 2-phenyl-4-methyl-5-hydroxymethylimidazole and/or 2-phenyl-4,5-dihydroxymethylimidazole as a setting accelerator as well as 50 to 200 parts by weight of a thermally conductive filler. This insulating resin paste exhibits a long pot life and can be set in a short time at a low temperature without generating any voids during the setting, so that it enables the die bonding process in the production of semiconductor devices to be performed as part of the production line. It also allows a smaller device to be used in this process.
摘要:
A solenoid operated valve has a valve body forming a chamber provided with a valve seat at its center. A fluid port communicating to an aperture formed in the center of said valve seat and another fluid port communicating to said valve chamber through a passage. An electromagnet body of a ring shaped cross section is mounted to the valve body from above overlying the valve chamber. The electromagnet body is divided by a central yoke and an outer enclosure formed with an outer yoke at its end facing said valve chamber. The lower ends of said central yoke and that of said outer yoke have tightly fit therebetween a lower flange of a solenoid coil bobbin of inserted in the coil chamber, formed thereby and seals off the valve chamber from the coil chamber. A movable block having a valve located at its center within said valve chamber is, normally, forced downwards by way of a spring to close off said valve seat and is attracted, when said coil is energized, toward said central yoke and said outer yoke to open said valve seat.
摘要:
A non-transitory computer readable recording medium that stores a print management program causing a computer to function as a retrieval unit that retrieves information about first functions of an image forming device and information about second functions of plural second devices; and a determination unit that determines whether the second functions of the second devices can process a print job, when the first functions of the image forming device cannot process the print job. Here, the image forming device and the second devices are connected to a print system including the computer. When the determination unit determines that the second functions of the second devices cannot process the print job, the print management program constrains the second functions of the second devices from being utilized.
摘要:
A semiconductor integrated circuit, including a first master circuit, a second master circuit, a first slave circuit assigned to the first master circuit, and determines that an access request signal is sent from the first master circuit when an identification information is a first value, a first bus coupled to the first master circuit, the second master circuit, and the first slave circuit, a bus controller is configured to transmit the access request signal to the first slave circuit via the first bus, a system controller directs the bus controller to substitute the first value for a second value on the identification information of the access request signal received from the second master circuit when the first master circuit is in the deactivated state.
摘要:
Disclosed is a multiprocessor apparatus including a plurality of processors connected to a common bus, a co-processor provided in common to the processors, an arbitration circuit that arbitrates contention among the processors with respect to use of a resource in the co-processor through a tightly coupled bus by the processors and a multiplexer coupled to the arbitration circuit, coupled to the processors through a local buses, and coupled to the co-processor through the local buses to transfer the commands received from the respective processors to the co-processor in accordance with a permission signal output by the arbitration circuit.
摘要:
The present invention provides a method of cleaning a storage case to be used for storing or transporting mask substrates such as photomasks and photomask blanks, semiconductor substrates such as semiconductor wafers, pellicles, or the like. The present invention: facilitates a regular cleaning operation, can be used also for a storage case of a complicated shape, does not require a large scale equipment or an expensive equipment to facilitate an environmental countermeasure, and provides high cleaning effect. The method of cleaning a storage case polluted by adhesion of a foreign substance of an organic material, an ionic foreign substances or an ionic crystal foreign substance physically absorbed, comprises a step of placing the storage case still in air flow of cleaned air or an inert gas in a temperature range from room temperature to 80° C. for desorbing and removing the foreign substance adhered to the storage case.