摘要:
A flame retardant epoxy resin composition for semiconductor encapsulation includes as essential components, (A) an epoxy resin, (B) a curing agent, (C) an inorganic filler, and (D) a phosphazene compound of the average compositional formula (1) having a melting point of 110–130° C., wherein a, b and n are numbers satisfying 0
摘要:
An epoxy resin composition comprising an epoxy resin, a phenolic resin curing agent, an inorganic filler, zinc molybdate on an inorganic support, and a complementary combination of two phosphazene compounds is effectively moldable, flame retardant and suitable for semiconductor encapsulation. A semiconductor device encapsulated with the cured epoxy resin composition is improved in flame retardance and moisture-proof reliability.
摘要:
A liquid epoxy resin composition comprising a liquid epoxy resin, a curing agent, and an inorganic filler is useful for semiconductor encapsulation when the curing agent contains 5-100% by weight of a specific aromatic amine compound of at least 99% pure, the epoxy resin and the curing agent are present in a molar ratio from 0.7 to 0.9, and the composition has a toughness K1c of at least 3.5. The composition is adherent to the surface of silicon chips, does not deteriorate under hot humid conditions, and is fully resistant to thermal shocks.
摘要:
A liquid epoxy resin composition comprising a liquid epoxy resin, an aromatic amine curing agent having a phenolic hydroxyl group in a skeleton, an inorganic filler, and a cure accelerator is useful for semiconductor encapsulation. The composition is adherent to the surface of silicon chips, does not deteriorate under hot humid conditions, and is fully resistant to thermal shocks.
摘要:
To provide an automatic machine system for readily and reliably selecting a desired mechanism part from among the automatic machine systems composed of a plurality of mechanism parts and teaching the mechanism part.Each of a plurality of mechanism parts such as robots includes a first communication part. A teaching operation part includes a second communication part with directivity. When the second communication part of the teaching operation part is oriented to the first communication part included in a target mechanism part to select the same, the second communication part transmits selection request information to the first communication part. A controller for controlling the mechanism parts places the target mechanism part in an operable state based on the selection request information thereby operating the target mechanism part with the operation of the worker on the teaching operation part.
摘要:
A gamma-rays measurement method of radionucludes (iodine-131, cobalt-60, etc.) coexisting with radionuclides (nitrogen-13, fluorine-18, cobalt-58, etc.) each emitting a pair of annihilation gamma-rays, particularly in primary water of a nuclear reactor by the use of a gamma-ray spectrometric system which includes a primary detector for detecting the gamma-rays and the one annihilation gamma-rays as pulses, a secondary detector for detecting the other annihilation gamma-rays as pulses, and shield detector for detecting gamma-rays Compton-scattered and escaped from the primary to shield detectors as pulses. The method comprises counting the pulses of the secondary detector in anticoincidence with the pulses of the primary detector, thereby to reject the recording of the annihilation gamma-rays from the primary detector, thus minimizing the annihilation gamma-rays disturbing to the measurement, followed by determining count numbers of the gamma-rays. Detection limits of the gamma-rays can be elevated significantly thereby. Simultaneously, further anticoincidence counting of the shield detector with the primary detector can be conducted to diminish the Compton-scattered gamma-rays.
摘要:
A color type converting means 3 generates, from a primary color image, an intensity image in a hue/saturation/intensity space normalized in a cylindrical coordinate system. A region dividing means 6 analyzes the texture of the intensity image and divides the intensity image into a plurality of regions on the basis of the result of the analysis. A density conversion curve generating means 7 generates a density conversion curve for each intensity image by smoothing the histogram for each divided region. A density converting means 8 executes density conversion of the intensity image by using the smoothing a histogram of each region. A region dividing means 5 generates a primary color image by using the intensity image which is density-converted.
摘要:
An apparatus has a parameter initial value calculator, a force reference impression part, an evaluation data measurement part, an allowable value setting part, a viscosity parameter calculator, an end determining part, and an inertia parameter adjusting part. The force reference impression part intermittently supplies a force reference to an impedance controller. The evaluation data measurement part measures setting time of time response, an overshoot amount, and the number of vibration times. The allowable value setting part sets allowable values of the overshoot amount and the setting time. The viscosity parameter calculator calculates a viscosity parameter with which the setting time becomes shortest. The end determining part determines the end or continuation of the process by comparing the adjustment values with the allowable values. The inertia parameter calculator adjusts the inertia parameter according to the adjustment values of the overshoot amount and the setting time.
摘要:
First calculation means calculates a TCP velocity error vector Verr when wrist axes performs rotational following movement, second calculation means selects a component, including the sign, of the TCP velocity error vector Verr, third calculation means decomposes the selected velocity error vector into a joint velocity vector ωerr, fourth calculation means integrates the joint velocity ωerr and calculates a position correction amount vector θadd, and the position correction amount vector θadd is fed back to position control means with torque limits.
摘要:
A robot according to an embodiment includes an arm, a strain sensor, one or more actuator, and a sensor fixing jig. The strain sensor includes a piezoelectric body that has a natural frequency higher than a natural frequency of a structural material forming the arm. The one or more actuators are provided in the arm to drive the arm. The sensor fixing jig is provided in a base of the actuator, among the actuators in the arm, closest to a base end of the arm. The strain sensor is provided in the sensor fixing jig.