摘要:
A method of carburizing treatment is proposed in which if carburizing is carried out at a low temperature, carbon will not turn amorphose and deposit on the surface of a titanium metal but reliably penetrate into between metallic atoms. It is a method of surface treatment of a titanium metal comprising the steps of heating the titanium metal to a temperature of 400-690° C. in a cleaning gas atmosphere containing hydrogen gas, subjecting the surface of the titanium metal to cleaning by applying a DC voltage of 200-1500 V, and plasma carburizing in an atmosphere comprising a carburizing gas having an atomic weight ratio of hydrogen atoms (H) to carbon atoms (C) adjusted to 1≦H/C≦9 at a pressure of 13-400 Pa and a temperature of 400-690° C. Ionization reaction in the gas is suppressed suitably. Because there exists no excessive carbon which is not used for carburization but turns soot or glass-like carbon, in the atmosphere during carburization, carburizing reaction progresses smoothly.
摘要翻译:提出了一种渗碳处理方法,其中如果在低温下进行渗碳,则碳不会变形并沉积在钛金属的表面上,而是可靠地渗入金属原子之间。 它是钛金属的表面处理方法,包括以下步骤:在含有氢气的清洁气体气氛中将钛金属加热到400-690℃的温度,通过施加钛金属来清洁钛金属表面 DC电压为200-1500V,并且在包含在氢气压力下调节至1 <= H / C <= 9的原子比为氢原子(H)与碳原子(C)的原子比的渗碳气体的气氛中的等离子体渗碳 13-400Pa,温度400-690℃。适当地抑制气体中的离子化反应。 由于不存在不用于渗碳而变成烟灰或玻璃状碳的过量碳,在渗碳时的气氛中,渗碳反应平稳进行。
摘要:
The surface of titanium is treated to reduce the friction coefficient and wear loss without sacrificing its corrosion resistance. Pure titanium or titanium alloy is subjected to plasma-carburizing in an atmosphere containing hydrocarbon gas at a pressure of 0.5 to 15 Torr and a temperature of 700.degree. to 1100.degree. C.
摘要:
To prevent, in a resin-sealed type semiconductor package, generation of cracks in a die bonding material used for mounting of a semiconductor chip. A semiconductor chip is mounted over the upper surface of a die pad via a die bonding material, followed by sealing with an insulating resin. The top surface of the die pad to be brought into contact with the insulating resin is surface-roughened, while the bottom surface of the die pad and an outer lead portion are not surface-roughened.
摘要:
The present invention relates to an electronic device that can output received voice and input transmitted voice at the same time and enhances a suppression function for echo due to the received voice sneaking into the transmitted voice. An electronic device (e.g., portable telephone terminal device) outputs the received voice from a voice output unit (speaker), inputs the transmitted voice through a voice input unit (microphone), and includes an echo canceller unit that subtracts a pseudo echo signal for the received voice from the transmitted voice to suppress an echo component in the transmitted voice and a controlling unit that changes an echo suppression amount of the echo canceller unit in accordance with the received voice volume.
摘要:
It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device.A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
摘要:
A game system allowing a player corresponding to a terminal, from which communication has been cut, to restart the game from the game situation at the moment of communication cut. The server has a game continuation device for continuing the game except the error terminal in a case where the error terminal occurs, and a server restart device for transmitting situation information of each player after communication recovery as information for restart, and restarting the game by communication with only the error terminal. The error terminal comprises a terminal restart device for restarting the game after communication recovery based on the situation information included in the information for restart, and a virtual input operation device for functioning as a virtual player instead of players P corresponding to other terminal.
摘要:
The reliability of a semiconductor device is improved.A package of a semiconductor device internally includes a first semiconductor chip and a second semiconductor chip in which power MOS•FETs are formed and a third semiconductor chip in which a control circuit controlling the first and second semiconductor chips is formed. The first to third semiconductor chips are mounted on die pads respectively. Source electrode bonding pads of the first semiconductor chip on a high side are electrically connected with a first die pad of the die pads via a metal plate. On a top surface of the die pad 7D2, a plated layer formed in a region where the second semiconductor chip is mounted, and another plated layer formed in a region where the metal plate is joined are provided and the plated layers are separated each other with a region where no plated layer is formed in between.
摘要:
The electrical characteristics of a semiconductor device are enhanced. In the package of the semiconductor device, there are encapsulated first and second semiconductor chips with a power MOS-FET formed therein and a third semiconductor chip with a control circuit for controlling their operation formed therein. The bonding pads for source electrode of the first semiconductor chip on the high side are electrically connected to a die pad through a metal plate. The bonding pad for source electrode of the second semiconductor chip on the low side is electrically connected to lead wiring through a metal plate. The metal plate includes a first portion in contact with the bonding pad of the second semiconductor chip, a second portion extended from a short side of the first portion to the lead wiring, and a third portion extended from a long side of the first portion to the lead wiring.
摘要:
The electrical characteristics of a semiconductor device are enhanced. In the package of the semiconductor device, there are encapsulated first and second semiconductor chips with a power MOS-FET formed therein and a third semiconductor chip with a control circuit for controlling their operation formed therein. The bonding pads for source electrode of the first semiconductor chip on the high side are electrically connected to a die pad through a metal plate. The bonding pad for source electrode of the second semiconductor chip on the low side is electrically connected to lead wiring through a metal plate. The metal plate includes a first portion in contact with the bonding pad of the second semiconductor chip, a second portion extended from a short side of the first portion to the lead wiring, and a third portion extended from a long side of the first portion to the lead wiring.
摘要:
The present invention provides to a novel compound having an ACAT inhibiting activity.The present invention relates to compounds represented by formula (I) wherein represents an optionally substituted divalent residue such as benzene, pyridine, cyclohexane or naphthalene, or a group, Het represents a 5- to 8-membered, substituted or unsubstituted heterocyclic group containing at least one heteroatom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, such as a monocyclic group, a polycyclic group or a group of a fused ring, X represents —NH—, an oxygen atom or a sulfur atom, Y represents —NR4—, an oxygen atom, a sulfur atom, a sulfoxide or a sulfone, Z represents a single bond or —NR5—, R4 represents a hydrogen atom, a lower alkyl group, an aryl group or an optionally substituted silyl lower alkyl group, R5 represents a hydrogen atom, a lower alkyl group, an aryl group or an optionally substituted silyl lower alkyl group, and n is an integer of from 1 to 15, or salts or solvates thereof, and a pharmaceutical composition containing at least one of these compounds.