摘要:
An epoxy resin composition which can be used as a semiconductor encapsulating resin and in which the improvement of flame retardancy can be attained by suitably adapting a crosslinked structure itself of a cured article without using any flame retardant material and without particularly highly filling an inorganic filler. The epoxy resin composition includes an epoxy resin (A), a phenolic resin (B), an inorganic filler (C) and a curing accelerator (D), wherein a flexural modulus E (kgf/mm2) at 240±20% C of a cured article obtained by curing the composition is a value satisfying 0.015 W+4.1≦E≦0.27 W+21.8 in the case of 30≦W
摘要翻译:可以用作半导体封装树脂的环氧树脂组合物,其中通过适当地使固化制品的交联结构本身适当地适应而不使用任何阻燃材料,并且不特别高填充无机填料可以获得阻燃性的改善。 环氧树脂组合物包括环氧树脂(A),酚醛树脂(B),无机填料(C)和固化促进剂(D),其中挠曲模量E(kgf / mm 2) )在固化组合物得到的固化制品的240±20%C下,在30 <= W <60的情况下为满足0.015W + 4.1 <= E <= 0.27W + 21.8的值,或满足0.30W 在60 <= W <= 95的情况下,-13 <= E <= 3.7W-184其中W(重量%)是固化物中无机填料(C)的含量。 该组合物的固化物在热分解或点火时形成发泡层以发挥阻燃性。
摘要:
According to the present invention, a gettering layer is deposited both on the side surfaces and the bottom surface of a semiconductor chip. The semiconductor chip is then mounted on the board of a package so that a Schottky barrier is formed on the bottom surface. With this structure, metal ions that pass through the board of the package can be captured by the defect layer deposited on the side surfaces and/or the bottom surface of the semiconductor chip, and by the Schottky barrier.
摘要:
A central processing unit schedules the start time of a following special process based on the progress status of a preceding special process being executed in an auxiliary processing unit and the processing time and the end time of the following special process.
摘要:
According to the present invention, a gettering layer is deposited both on the side surfaces and the bottom surface of a semiconductor chip. The semiconductor chip is then mounted on the board of a package so that a Schottky barrier is formed on the bottom surface. With this structure, metal ions that pass through the board of the package can be captured by the defect layer deposited on the side surfaces and/or the bottom surface of the semiconductor chip, and by the Schottky barrier.
摘要:
An epoxy resin composition which can be used as a semiconductor encapsulating resin and in which the improvement of flame retardancy can be attained by suitably adapting a crosslinked structure itself of a cured article without using any flame retardant material and without particularly highly filling an inorganic filler. The epoxy resin composition includes an epoxy resin (A), a phenolic resin (B), an inorganic filler (C) and a curing accelerator (D), wherein a flexural modulus E (kgf/mm2) at 240±20% C of a cured article obtained by curing the composition is a value satisfying 0.015 W+4.1≦E≦0.27 W+21.8 in the case of 30≦W
摘要:
In a central processing unit, caching is carried out for an instruction cache tag memory, so that, without making modifications to a conventional instruction cache controller, the number of times of access to the instruction cache tag memory, which consumes a large amount of electric power, is reduced, and low electric power consumption is attained.
摘要:
A processor for performing context switching, including: (a) a register unit configured to include a primary register used in program execution by the processor and a secondary register having a same structure as the primary register; (b) a data storage unit configured to be used as a data storage area in the program execution; (c) a transfer unit configured to include a transfer register used in data transfer between the secondary register and the data storage unit; and (d) an arithmetic unit configured to perform the copy between the primary and secondary registers in a cycle and performs the data transfer between the data storage unit and the secondary register in parallel to instruction execution by the processor when the instruction execution by the processor does not involve memory access to the data storage unit.
摘要:
The processing device is capable of high efficiency processing with a laser and a punch press while neutralizing the effects on the laser by vibrations caused by punch processing. The punch press device has a servo-motor and a crank system that converts the rotation of the servo-motor to a reciprocal movement of the ram. A NC device controls the processing device. The NC device has determination standards which assign either the punch press part or the laser processing part by predetermined values obtained by the mutual relationship of the work thickness, material and circumferential length with respect to hole processing.
摘要:
A compound machining apparatus in which a punch press and a movable table device are provided on separate frames, respectively, and a laser oscillator, a laser beam machining head and a tube for guiding a laser beam from the laser oscillator to the laser beam machining head are collectively placed on the same frame as the frame of the movable table device.