摘要:
A CVD apparatus is able to efficiently perform purging treatment after maintenance by using for the purge gas a mixed gas of a high thermal conductivity and an inert gas. Purging treatment before semiconductor film formation is performed by repeating the pumping of a vacuum and the introduction of inert gas a plurality of times. In addition, in order to judge suitable maintenance times, the moisture concentration in reaction chamber is measured with a moisture meter connected to the reaction chamber when performing a corrosive gas treatment, and maintenance times are determined according to changes in the moisture concentration when corrosive gas treatment is performed repeatedly. In addition, in order to measure the moisture of corrosive gas while preventing obstruction of piping in a moisture monitoring apparatus, a moisture monitoring apparatus, including a pipe, of which one end is connected to reaction chamber into which corrosive gas flows, and a moisture meter connected to the other end which measures the moisture contained in the corrosive gas introduced from the reaction chamber, is equipped with a pipe beating mechanism.
摘要:
The present invention discloses a CVD apparatus which, together with being able to efficiently perform purging treatment after maintenance, uses for the purge gas a mixed gas of a gas having high thermal conductivity and an inert gas during heated flow purging treatment after maintenance to perform startup of the CVD apparatus while reducing the amount of time required for purging treatment. Purging treatment before semiconductor film formation is performed by repeating the pumping of a vacuum and the introduction of inert gas a plurality of times. In addition, in order to judge suitable maintenance times of semiconductor production apparatuses that perform corrosive gas treatment in a reaction chamber, the moisture concentration in reaction chamber is measured with moisture meter connected to the reaction chamber when performing the corrosive gas treatment, and maintenance times of the semiconductor production apparatus are determined according to changes in the moisture concentration when corrosive gas treatment is performed repeatedly. In addition, in order to measure the moisture of corrosive gas during processing while preventing obstruction of piping in a moisture monitoring apparatus and semiconductor production apparatus equipped therewith, a moisture monitoring apparatus, which is equipped with a pipe, of which one end is connected to reaction chamber into which corrosive gas flows, and a moisture meter connected to the other end of that pipe which measures the moisture contained in the corrosive gas introduced from the reaction chamber, is at least equipped with pipe heating mechanism that heats the pipe.
摘要:
A semiconductor manufacturing method whereby reactive gas processing such as selective epitaxial growth can be carried out with high precision by correctly adjusting conditions during processing is performed by a semiconductor manufacturing apparatus which can restrict increases in the moisture content, prevent heavy metal pollution and the like, and investigate the correlation between moisture content in the process chamber and outside regions. The moisture content in a reaction chamber and in a gas discharge system of the reaction chamber are measured when a substrate is provided, and the conditions for reactive gas processing are adjusted based on the moisture content. Furthermore, the moisture content in the airtight space is measured by a first moisture measuring device which is connected to the airtight space, and thereafter, the substrate is inserted and ejected by a substrate carrying system, and a reactive gas is processed while measuring the moisture content in the reaction chamber by a second moisture measuring device, which is connected to the reaction chamber, after the moisture content in the airtight space is measured.
摘要:
A semiconductor manufacturing method whereby reactive gas processing such as selective epitaxial growth can be carried out with high precision by correctly adjusting conditions during processing is performed by a semiconductor manufacturing apparatus which can restrict increases in the moisture content, prevent heavy metal pollution and the like, and investigate the correlation between moisture content in the process chamber and outside regions. The moisture content in a reaction chamber and in a gas discharge system of the reaction chamber are measured when a substrate is provided, and the conditions for reactive gas processing are adjusted based on the moisture content. Furthermore, the moisture content in the airtight space is measured by a first moisture measuring device which is connected to the airtight space, and thereafter, the substrate is inserted and ejected by a substrate carrying system, and a reactive gas is processed while measuring the moisture content in the reaction chamber by a second moisture measuring device, which is connected to the reaction chamber, after the moisture content in the airtight space is measured.
摘要:
A semiconductor manufacturing method whereby reactive gas processing such as selective epitaxial growth can be carried out with high precision by correctly adjusting conditions during processing is performed by a semiconductor manufacturing apparatus which can restrict increases in the moisture content, prevent heavy metal pollution and the like, and investigate the correlation between moisture content in the process chamber and outside regions. The moisture content in a reaction chamber and in a gas discharge system of the reaction chamber are measured when a substrate is provided, and the conditions for reactive gas processing are adjusted based on the moisture content. Furthermore, the moisture content in the airtight space is measured by a first moisture measuring device which is connected to the airtight space, and thereafter, the substrate is inserted and ejected by a substrate carrying system, and a reactive gas is processed while measuring the moisture content in the reaction chamber by a second moisture measuring device, which is connected to the reaction chamber, after the moisture content in the airtight space is measured.
摘要:
A joining method includes punching respective laminated plate materials by a rivet shaft portion of a SPR, forming a crimp portion at the front end of the rivet shaft portion, and fastening and joining the laminated plate materials between the rivet head portion and the crimp portion. Washers are laid on and brought into contact with respective opposite surfaces relative to joining surfaces of the laminated plate materials, the washers each having an inner hole through which the rivet shaft portion is allowed to pass, the washers are used as jigs at the time of the punching, the punching by means of the rivet shaft portion is performed along the inner holes of the washers, and the joining is performed so that the washers left between the rivet head and the crimp portion and the opposite surfaces.
摘要:
[Problem]To provide means for improving symptoms of cerebral dysfunction.[Solution Means]The inventor has newly found that peripheral administration of sepiapterin increases the bioavailability of aromatic monoamines in the brain. Accordingly, provided are a drug for preventing or improving cerebral dysfunction, which contains at least one of sepiapterin and its salt and also provided is a food and or drink for preventing or improving cerebral dysfunction, which contains at least one of sepiapterin and its salt. Unlike tetrahydrobiopterin, etc., sepiapterin is able to repress the lowering level of aromatic monoamines (such as serotonin, dopamine and noradrenaline) in neurons in the brain and also increase the bioavailability. Therefore, sepiapterin may be effective against cerebral dysfunction caused by the lowered level of aromatic monoamines in the brain in neurons in the brain, for example, central mental disorders such as depression, hyperphagia, autism, impaired consciousness and concentration, and cognitive disturbance as well as central motor disorders such as myotonia, rigidity and tremor.
摘要:
In a surface treating method of the present invention, a fluid suction passage 26 communicating with a fluid supply passage 25 via only a narrowed portion 27 is provided, so as to approximately concentrically surround the periphery of the fluid supply passage 25 having the narrowed portion 27 at one end thereof, and the sucking cavitation flow 5 is generated at the direct downstream of the narrowed portion 27, by sucking the processing fluid 8 into the fluid suction passage 26 using a suction pump 17, as well as a surface treating is performed on the treated surface 6a, by crushing the sucking cavitation flow 5 approximately perpendicular to the treated surface 6a.
摘要:
In a case where a position information acquisition setting unit sets to acquire position information and in a case where a determination unit determines that the image data recorded in a recording medium is automatically transmitted to an external device, a transmission setting confirmation screen is displayed, so that the image data to which the position information is attached is prevented from being transmitted to the external device while the user does not intend to do so.