Abstract: To reduce defects in an oxide semiconductor film in a semiconductor device. To improve the electrical characteristics and the reliability of a semiconductor device including an oxide semiconductor film. In a semiconductor device including a transistor including a gate electrode formed over a substrate, a gate insulating film covering the gate electrode, a multilayer film overlapping with the gate electrode with the gate insulating film provided therebetween, and a pair of electrodes in contact with the multilayer film, a first oxide insulating film covering the transistor, and a second oxide insulating film formed over the first oxide insulating film, the multilayer film includes an oxide semiconductor film and an oxide film containing In or Ga, the first oxide insulating film is an oxide insulating film through which oxygen is permeated, and the second oxide insulating film is an oxide insulating film containing more oxygen than that in the stoichiometric composition.

Abstract: An information processing method includes: calculating a probability density distribution of a work time that is at least part of a setup time, based on production performance data read from storage, the setup time being time taken for a setup work that is performed between lots; determining whether the work time is anormal, based on the probability density distribution; and outputting a result of the determining.

Abstract: A skill evaluation device includes: a first extractor that obtains first information indicating one or more types of first products, machines used in the production, and skill indicators of workers involved in the production; a model generator that generates an estimation model for estimating a standard probability distribution of a skill indicator; an aggregator that calculates a skill indicator by aggregating production records of the specified worker; an indicator estimator that estimates a probability distribution of the skill indicator for the specified worker by providing, as input data to the estimation model, second information indicating: one or more types of second products the specified worker has been involved in production; and one or more machines used by the specified worker; and an evaluator that calculates a deviation degree between the probability distribution estimated by the indicator estimator and the skill indicator calculated by the aggregator.

Abstract: A system for generating a forecast including a classifier module for receiving from a user, at least one feature and classifying the at least one feature into a plurality of priority groups based on a user preference. The system further includes an artificial intelligence (AI) forecast module in communication with the classifier module for processing the plurality of priority groups with at least one feature. The AI forecast module derive a learning from classification of the at least one feature into the plurality of priority groups; and generate the forecast based on the learning.

Abstract: One embodiment can provide a system for detecting anomaly for high-dimensional sensor data associated with one or more machines. During operation, the system can obtain sensor data from a set of sensor associated with one or machines, apply data exploration techniques on the sensor data to automatically process sensor data to identify a subset of feature sensors from the available set of feature sensors, apply an unsupervised machine-learning technique to the identified subset of feature sensors and the target sensor to learn a set of pair-wise univariate models, and determine whether and how an anomaly occurs in the operation of the one or more machines based on the set of pair-wise univariate models.

Abstract: One embodiment can provide a system for detecting anomaly for high-dimensional sensor data associated with one or more machines. During operation, the system can obtain sensor data from a set of sensor associated with one or machines, apply data exploration techniques on the sensor data to automatically process sensor data to identify a subset of feature sensors from the available set of feature sensors, apply an unsupervised machine-learning technique to the identified subset of feature sensors and the target sensor to learn a set of pair-wise univariate models, and determine whether and how an anomaly occurs in the operation of the one or more machines based on the set of pair-wise univariate models.

Abstract: A library for electronic circuit simulation stores information on electrical characteristics and information on the 3D shape of a flexible substrate. The electrical characteristics of the flexible substrate change in response to changes in the 3D shape. Accordingly, there is no need to execute electromagnetic simulation every time the shape of flexible substrate is changed. This improves the design efficiency.

Abstract: A designing method for designing an electronic component aiming at increase in designing efficiency is provided. The designing method has a step of setting a predetermined electrical characteristic, a step of determining an electric constant of the component with a first electric circuit simulation to satisfy the predetermined electrical characteristic, a step of determining a pattern shape for obtaining the electric constant, a step of retrieving and selecting an electronic component matching with the electric constant from a database, and performing layout design using the selected electronic component as a module, a step of performing a second electric circuit simulation, and a step of determining whether the electrical characteristic of the module matches with the predetermined electrical characteristic.

Abstract: A piezoelectric vibrator has a laminated structure where silicon oxide films having substantially the same thickness are disposed at both faces of piezoelectric plate as dielectric films. Using the structure discussed above, because dielectric films are formed at the both faces of the piezoelectric plate a difference of internal stress, which is caused by a difference of stress relaxation in a long term and affects the piezoelectric plate or the dielectric film, becomes small. Therefore, a warp can be considerably small. As a result, a change, which is caused by the warp of the piezoelectric vibrator, in a resonance frequency of the piezoelectric vibrator can be small.

Abstract: An antenna manufacturing method including the step of inputting as variables shape of a case, position of an antenna in the case, shape of the antenna, position of antenna peripheral components in the case, and shape of the antenna peripheral components, and the step of computing optimum value of the variables by a simulation program. With this manufacturing method, radiation efficiency of the antenna and the communications device that uses it can be enhanced.

Abstract: A designing method of an electronic component aiming at increase in designing efficiency is provided. The designing method has step (21) of setting a predetermined electrical characteristic, step (22) of determining an electric constant of the component with a first electric circuit simulation to satisfy the predetermined electrical characteristic, step (23) of determining a pattern shape for obtaining the electric constant, step (24) of retrieving and selecting an electronic component matching with the electric constant from a database, and performing layout design using the selected electronic component as a module, step (25) of performing a second electric circuit simulation, and step (26) of determining whether the electrical characteristic of the module matches with the predetermined electrical characteristic.

Abstract: A piezoelectric oscillator using zinc oxide as a piezoelectric plate which eliminates unwanted resonance called inharmonic overtone by optimizing ratio Le/H of driving electrode length Le to oscillator thickness H. Ratio Le/H is set between 4 and 100 in the piezoelectric oscillator polarized in a thickness direction of a piezoelectric plate and using thickness extension vibration as main vibration or the piezoelectric oscillator polarized in a length direction of the piezoelectric plate and using thickness shear vibration as main vibration. This achieves stable characteristic because no unwanted resonance exists between the resonance frequency and anti-resonance frequency of the main vibration.

Abstract: A method for analyzing an electromagnetic field includes: a step S1 for setting up initial shapes of conductor patterns in each layer of a multilayer circuit board; a step S2 for setting up initial ports for input or output of an external signal in each conductor pattern; a step S3 for dividing two-dimensionally the multilayer circuit board into a plurality of areas; steps S4a and S4b for setting up additive ports on edges of the conductor pattern which has been created by area-division; steps S5a and S5b for setting up individual analysis conditions for the initial ports and the additive ports, respectively; steps S6a and S6b for performing an electromagnetic analysis of the multilayer circuit board by the divided area, based on the analysis conditions; and a step S8 for integrating results of the electromagnetic analysis over each of the divided areas, thereby obtaining results of the electromagnetic analysis over the whole circuit board.

Abstract: A piezoelectric vibrator which uses lithium tantalate as a piezoelectric material and of which main vibration is thickness shear vibration. The thickness direction of the vibrator forms angle of 0°±5° to the X-axis of a single crystal. The longitudinal direction of vibrator lies, with the X-axis used as a rotation axis, in direction n +57°±2° clockwise from the Y-axis of the single crystal. A ratio L/H of the length L of the vibrator to the thickness H is not less than 15. A ratio Le/H of the length Le of the exciting electrode to the thickness H of the vibrator element portion is 3–6. Accordingly, a vibrator having improved temperature characteristics and a large Q is realized.

Abstract: A method of analyzing electronic components and the analyzing device, with which the designing time can be made shorter and the cost reduction can be implemented. In analyzing an electronic component comprising bump electrode, such as a solder bump, an Au bump or BGA, a 3-D model electronic data containing information on the shape of electronic component is provided at step S1. Next at step S2, curved line and curved surface forming the 3-D model is replaced with a 3-D model approximated using polygons. At step S3, a finite element model is provided by converting the polygon-approximated 3-D model. And then at step S4, numerical simulation such as a finite element analysis which uses the finite element model made available at the step 3 is executed. Finally at step S5, the analysis results are displayed for evaluation.

Abstract: A design method for an antenna which shortens the time for antenna design and greatly contributes to reduction in costs of antenna development, and an antenna using the same are provided. This design method for the antenna can design an optimum antenna matching with the configuration of a cellular telephone for a short time. This design method for the antenna uses a database prepared beforehand and a relational expression obtained from design parameters and characteristic parameters, and can obtain desired antenna characteristics for a short time.

Abstract: A piezoelectric vibrator has a laminated structure where silicon oxide films having substantially the same thickness are disposed at both faces of piezoelectric plate as dielectric films. Using the structure discussed above, because dielectric films are formed at the both faces of the piezoelectric plate a difference of internal stress, which is caused by a difference of stress relaxation in a long term and affects the piezoelectric plate or the dielectric film, becomes small. Therefore, a warp can be considerably small. As a result, a change, which is caused by the warp of the piezoelectric vibrator, in a resonance frequency of the piezoelectric vibrator can be small.

Abstract: A piezoelectric vibrator uses aluminum nitride as piezoelectric material and thickness sliding vibration as the primary vibration. A polarization direction of the primary vibration is along the longitudinal direction of its vibrating element. This vibrator eliminates undesired resonance, caused by a width of the vibrating element, from a vicinity of a resonance frequency of the primary vibration. Vibrating element 1 has width W and thickness H defined as follows: 2.0≦W/H≦4.0 or 4.3≦W/H≦5.7 or 6.2≦W/H≦7.8 or 8.2≦W/H≦9.8.

Abstract: A piezoelectric oscillator using zinc oxide as a piezoelectric plate which eliminates unwanted resonance called inharmonic overtone by optimizing ratio Le/H of driving electrode length Le to oscillator thickness H. Ratio Le/H is set between 4 and 100 in the piezoelectric oscillator polarized in a thickness direction of a piezoelectric plate and using thickness extension vibration as main vibration or the piezoelectric oscillator polarized in a length direction of the piezoelectric plate and using thickness shear vibration as main vibration. This achieves stable characteristic because no unwanted resonance exists between the resonance frequency and anti-resonance frequency of the main vibration.

Abstract: A piezoelectric vibrator which uses lithium tantalate as a piezoelectric material and of which main vibration is thickness shear vibration. The thickness direction of the vibrator forms angle of 0°±5°. The longitudinal direction of vibrator lies, with the X-axis used as a rotation axis, in direction n +57°±2° clockwise from the Y-axis of the single crystal. A ratio L/H of the length L of the vibrator to the thickness H is not less than 15. A ratio Le/H of the length Le of the exciting electrode to the thickness H of the vibrator element portion is 3-6. Accordingly, a vibrator having improved temperature characteristics and a large Q is realized.