摘要:
There is disclosed a silicon electrode plate including silicon single crystal used as an upper electrode in a plasma etching apparatus wherein concentration of interstitial oxygen contained in the silicon electrode plate is not less than 5×1017 atoms/cm3 and not more than 1.5×1018 atoms/cm3, and the silicon electrode plate wherein nitrogen concentration in the silicon electrode plate is not less than 5×1013 atoms/cm3 and not more than 5×1015 atoms/cm3. There can be provided a silicon electrode plate consisting of silicon single crystal used as an upper electrode in a plasma etching apparatus wherein problems due to adhesion of impurities such as heavy metal or the like can be prevented.
摘要翻译:公开了一种在等离子体蚀刻装置中用作上电极的硅单晶的硅电极板,其中硅电极板中所含的间隙氧的浓度不小于5×10 17原子/ cm 3且不大于1.5×10 18原子/ cm 3, 硅电极板中的氮浓度不小于5×10 13原子/ cm 3且不大于5×10 15原子/ cm 3的硅电极板。 在等离子体蚀刻装置中可以提供由用作上电极的硅单晶组成的硅电极板,其中可以防止由于诸如重金属等的杂质的附着而引起的问题。
摘要:
There is disclosed a silicon focus ring consisting of silicon single crystal used as a silicon focus ring in a plasma apparatus, wherein concentration of interstitial oxygen contained in the silicon focus ring is not less than 5×1017 atoms/cm3 and not more than 1.5×1018 atoms/cm3, and a producing method for a silicon focus ring used for a plasma apparatus, wherein a single crystal silicon wherein concentration of interstitial oxygen contained in the silicon focus ring is not less than 5×1017 atoms/cm3 and not more than 1.5×1018 atoms/cm3 is grown by a Czochralski method, the single crystal silicon is processed in a circle, and a silicon focus ring is produced. There can be provided a silicon focus ring, which can prevent disadvantage due to impurities such as heavy metal.
摘要翻译:公开了在等离子体装置中用作硅聚焦环的硅单晶组成的硅聚焦环,其中硅聚焦环中所含的间隙氧的浓度不小于5×10 17原子/ cm 3,而不是 大于1.5×10 18原子/ cm 3,以及用于等离子体装置的硅聚焦环的制造方法,其中,在硅聚焦环中包含的间隙氧的浓度为5×10 6个以上的单晶硅 通过Czochralski法生长17个原子/ cm 3以上1.5×10 18个/ cm 3以下的单晶硅,制成硅聚焦环。 可以提供硅聚焦环,其可以防止由于诸如重金属的杂质导致的不利影响。
摘要:
A process of insulatingly coating a front and a back surface of a printed circuit board is disclosed. A vessel has a large top opening for receiving coating liquid therein and has a plurality of small apertures formed in the bottom. The vessel is immersed into a pool of coating liquid contained in a reservoir for injection of coating liquid into the vessel. The vessel is pulled upward from the reservoir before a printed circuit board reaches the location of the vessel, whereby a coating liquid flows down through the plurality of apertures in the vessel as series of continuous thin streams in the form of strings. A printed circuit board disposed at an angle is fed through the shower thus formed. After passing through the shower, the board is pivotally driven to present a surface which has previously been facing downward upward, and the board is again fed in an inclined position through the shower. The coating liquid on the front and the back surface is allowed to be drained off the board, which is then fed to a drying stage where an air stream is directed upward toward the board from the downside thereof, and the board is angularly driven about a horizontal axis.
摘要:
It is an object of the present invention to provide a state-transition-model-based programming system where the program data structure is simple and compact. To achieve this object, one or more specifications comprising a program are entered from the input unit (11) and specification input section (12) in the from of state transition models. The specification storage means (21) stores the specifications. The specification execution section (32) executes the specifications. When one of the beginning conditions is satisfied, the priority processing section (33) changes the specification to the next specification corresponding to the beginning condition. The change processing section (34) determines the beginning state of the next specification according to the correspondence stored in the state map storage means.
摘要:
In a debug transition information file or a debug state information file, individual states and individual transitions have been correlated with addresses of an object code. While a program executing portion is executing a program, if a program stop command or the like is issued, a debugger executes the stop operation of the program with an address of the object code specified, based on the correlated results. Thus, the program can be more easily stopped or re-executed at any position in the function specifications. In addition, a state or a transition can be easily specified at any position of the program. When the function specifications have a hierarchical structure, the operation of the system can be easily checked.
摘要:
A drive control system for stopping a sewing machine when a thread of the sewing machine is broken or tangled. The system comprises rotational speed meter circuits, each one of which is coupled with respective thread tension disk means which rotate in synchronism due to movement of threads on them. A deceleration of the rotation of one of the thread tension disk means is detected by a rotational speed meter circuit coupled with it. An electric logic circuit in the system, which is energized to drive the sewing machine in response to a closure of a start switch and deenergized to stop the sewing machine in response to a closure of a stop switch, is deenergized to stop the sewing machine in response to the detection of the deceleration of the rotation of one of the rotary disks.