摘要:
Provided is a manufacturing method of a semiconductor device wherein the generation of voids is prevented in aluminum-based electrodes or the like. The method is suitable for manufacturing a semiconductor device adapted for vehicles, which is required to have a high reliability. However, it is very difficult that power semiconductor devices such as power MOSFETs, in particular, trench gate type power MOS devices are formed without having any void since the thickness of aluminum-based electrodes thereof is as large as about 3500 to 5500 nm (2.5 μm or more). In the present invention, a method is provided wherein at the time of forming an aluminum-based electrode metal film positioned over a wafer and having a thickness of 2.5 μm or more over a highland/lowland-repeated region in a line and space form by sputtering, the temperature of the wafer is set to 400° C. or higher and lower than 500° C.
摘要:
The oxidation of fat or oil in stored food and the resulting rancid taste of the stored food are inhibited by the presence of small amounts of young leaves and shoots of Coriandrum sativum L., or of the juice or extract obtained from such plant parts.
摘要:
Sterilized and packaged mineral water comprises sterilized mineral water having a hardness of not less than 50 mg/l and a content of dissolved carbonic acid gas ranging from 9 to 30 mg/l (as calcium carbonate) and a number of bacteria of not more than 10.sup.-3 /ml which is obtained by sterilizing pumped-up mineral water having a hardness of not less than 50 mg/l and a content of dissolved carbonic acid gas ranging from 10 to 31 mg/l by filtering through a filter having a pore size of not more than 0.22 .mu.m. The packaged and sterilized mineral water can be effectively prepared by a method which comprises packaging pumped-up mineral water in a container without subjecting it to any heat-sterilization treatment wherein the mineral water is sterilized by passing through a filter having a pore size of not more than 0.22 .mu.m, packaged in a sterilized container under an aseptic condition of not more than Class 100 and then the container is airtight-sealed. Thus, packaged and sterilized mineral water having excellent keeping quality can be obtained without subjecting pumped-up mineral water to any sterilization by heating and without using any antibacterial agent and it has a high hardness and a high carbon dioxide content as well as good taste peculiar to the original mineral water.
摘要:
Embodiments of the present invention effectively control utilizing a spoiler, the windage vibration of a magnetic head caused by the airflow generated in accordance with rotation of a magnetic disk, while reducing the dust flowing in on the downstream side of the spoiler. According to one embodiment, a spoiler is provided with wings facing a plurality of magnetic disks and a supporting section for the wings is disposed on the upstream side of a head stack assembly in the airflow direction in accordance with the rotation of the magnetic disks. Further, the wings each extend in a direction from the outer circumferences of the magnetic disks towards the spindle shaft while reducing the width of the wing, and is formed to have the width of the wing in a range of 2.7% through 2.9% of the circumferential length of the magnetic disks in a range of two thirds of the length of the wing in a direction towards the spindle shaft from a region located at the outer circumferences of the magnetic disks.
摘要:
An apparatus for producing sterile air comprises a sterilizing filter for filtering microbes in air and an air heater for heating the filtered air for its sterilization. There is provided means for disposing of the sterile air from the air heater at an initial stage of production of the sterile air.
摘要:
Two or more sets of liquid substance feed means are provided each which consists of a supply device, a transport pipe and a delivery pump. These feed means are connected through a valve to a single transport pipe and back pressure devices are provided in all but one of the liquid-substance feed means. While a liquid substance is being fed by one of the feeding means, another liquid substance having different properties is passing in the other feed means and using the back pressure device provided in the latter means, the flow rate and the pressure of the latter liquid substance are controlled as the same as those of the former being fed by the former feed means. Being switched over, in this condition, from the former feed means to the latter to feed the latter liquid substance, two or more kinds of liquid substance having different properties can be fed sequentially at predetermined pressure and flow rate.
摘要:
An apparatus for continuously sterilizes and fills food and medicines containing solids. In this apparatus, a filler nozzle is disposed downstream of a back-pressure tank, and a control valve is interposed between the back-pressure tank and the filler nozzle for controlling the flow rate of the products which are delivered from the sterilizer to the back-pressure tank. The control valve avoids a remarkable pressure loss which might otherwise be invited in the series passages of the apparatus. The outflow of air from the back pressure tank to the filler nozzle is minimized so that the back pressure can be applied to the sterilizer as stably as possible. At the same time, the sterilized products are continuously fed to the filler nozzle so that they can be packed simultaneously with their upstream sterilization.
摘要:
A sterilization apparatus suitable for sterilizing food and medicines containing solid particles, which comprises a forcing device, a sterilizer, a backpressure tank and a backpressure device. The sterilization apparatus is sterilized beforehand under application of a backpressure by employing the forcing device and the backpressure device. The products are sterilized in the sterilizer under pressure by the forcing device and the backpressure tank, and then the sterilized products are collected in the backpressure tank.
摘要:
A filling apparatus for charging a liquid or highly viscous product into containers. The apparatus has a pressurizing tank, buffer tank, filling tank and a filling machine. The tanks have controllable pneumatic internal pressure. The product is fed at a high pressure from the pressurizing tank to the buffer tank and, after decreasing the pressure in the buffer tank, the product is transferred at the normal or low pressure from the buffer tank to the filling tank and filling machine.
摘要:
Embodiments of the present invention improve the efficiency of a cleaning process for cleaning a component part of a magnetic disk drive in a magnetic disk drive manufacturing line. According to one embodiment, a magnetic disk part cleaning apparatus is included in a head stack assembly (HSA) cleaning line for cleaning head stack assemblies of magnetic disk drives included in a magnetic disk drive manufacturing line. The magnetic disk part cleaning apparatus is disposed between a HSA assembly line for assembling a head stack assembly, and head disk assembly (HDA) assembly line for assembling a head disk assembly including the head stack assembly and is connected directly to at least either of the HSA assembly line and the HDA assembly line.