摘要:
A composite ceramic material with a honeycomb structure which is composed by adding glass into silicon carbide is used for a mask stage (2) and a substrate stage (12) in an exposure apparatus (100) for liquid crystal panels.
摘要:
A method of forming an insulation film includes the steps of forming an insulation film on a substrate, and modifying a film quality of the insulation film by exposing the insulation film to atomic state oxygen O* or atomic state hydrogen nitride radicals NH* formed with plasma that uses Kr or Ar as inert gas.
摘要:
At the abutting end faces of coupling members (1, 2), annular recesses (3, 4) having annular protrusions (5, 6) on the bottom face are provided while surrounding fluid channels (1a, 2a). A gasket (10) comprises a seal part (11) interposed between the protrusions (5, 6) of the coupling members (1, 2) while having an outside diameter smaller than the diameter of the annular recesses (3, 4), and a guide part (12) disposed on the outside of the seal part (11) while having an outside diameter being fitted in the annular recesses (3, 4). When the coupling members (1, 2) are fastened properly, the end faces thereof abut each other. An annular groove (14) is made in the outer circumference of the seal part (11) and a snap ring (13) fitted in the annular groove (14) couples the seal part (11) and the guide part (12).
摘要:
A method for detecting abnormal flow rate by easily detecting an obstruction of an orifice while a fluid pressure flow rate controller using an orifice is controlling the flow rate. The method uses a flow rate controller (FCS) so as to calculate the flow rate Qc on the downstream side when the upstream-side pressure P1 is maintained at a value about twice or more the downstream-side pressure P2 from Qc=KP1 (K: constant) and to control the operation of a control valve (CV) according to a signal Qy representing the difference between the calculated flow rate Qc and a preset flow rate Qs. A testing circuit or flow rate setting circuit provided separately outputs a testing signal ΔQs having a testing amplitude V0 to the control valve (CV). The pressure amplitude V of a pressure variation ΔP1 of the upstream-side pressure P1 occurring in response to the opening/closing of the control valve (CV) is measured. When the pressure amplitude V decreases below a limit amplitude Vt, the obstruction of the orifice is announced, thus implementing the method. If the testing signal ΔQs is superimposed on a steady-state preset flow rate signal Qs0 and outputted together from the testing circuit or the flow rate setting circuit to the control valve (CV), an abnormal flow rate can be detected while controlling the flow rate by using the steady-state preset flow rate signal Qs0.
摘要:
Summary The present invention provides a vacuum thermal insulating valve that may be used at high temperature in gas supply systems or gas exhaust systems, and also may be made substantially small and compact in size owing to its excellent thermal insulating performance. With a vacuum thermal insulating valve comprising a valve equipped with a valve body and an actuator, and a vacuum thermal insulating box that houses the valve, the afore-mentioned vacuum thermal insulating box S is formed by a square-shaped lower vacuum jacket S 5 having a cylinder-shaped vacuum thermal insulating pipe receiving part J on a side and with its upper face made open, and the square-shaped upper vacuum jackets S 4 , which is hermetically fitted to the lower vacuum jacket S 5 and with its lower face made open.
摘要:
It is an object of the present invention to provide at low costs a valve with an integral orifice for use in a gas feeding equipment provided with a pressure-type flow volume control device to be employed for manufacturing of semi-conductors and chemical goods. The valve with an integral orifice has the excellent flow rate control characteristics by improving the processing accuracy of the orifice and preventing the distortion of the orifice at the time of assembling. To realize the objects of the present invention, the main part of the valve with an integral orifice comprises a valve main body made of heat-resisting materials having a gas inflow passage in communication with a valve chamber with an upper open end and a gas outflow passage, a synthetic resin made valve seat body formed in the valve chamber and having a gas outflow passage in communication with the gas outflow passage of the aforementioned valve main body and a valve seat, an orifice disc made of heat-resisting materials removably installed in the gas outflow passage of the valve seat body, and an orifice formed in the orifice disc to reduce the gas outflow passage of the valve seat body; wherein the orifice is formed in the stainless steel made orifice disc in advance and the metal made orifice disc with the orifice formed by a separate processing and the synthetic resin made valve seat body are removably assembled, wherein the orifice disc and the synthetic resin made valve seat body are fixed airtight to the valve main body by pressing the valve seat body via the metal inner disc.
摘要:
The present invention has an object of improving the cooling efficiency of the process gas supply part of a plasma processor and thereby suppressing an increase in the temperature of the process gas supply part. Therefore, used in the present invention is a plasma processor having a processing vessel having a holder holding a substrate to be processed, a microwave antenna provided on the processing vessel so as to oppose the substrate to be processed, and a processing gas supply part provided between the substrate to be processed on the holder and the microwave antenna so as to oppose the substrate to be processed, characterized in that the process gas supply part has multiple first openings through which plasma formed in the processing vessel passes, a process gas channel connectable to a process gas source, multiple second openings communicating with the process gas channel, and a cooling medium channel through which a cooling medium cooling the process gas supply part flows, wherein the cooling medium includes mist.
摘要:
When a thin sheet-like substrate S is conveyed between conveying chambers (2) equipped with a processing apparatus (1) and kept in an inert gas atmosphere by using a conveying robot (30) equipped with an accommodation chamber (3) capable of accommodating the thin sheet-like substrate (S) in an inert gas atmosphere, a connection chamber (4) is interposed between the accommodation chamber (3) and the conveying chamber (2) when the thin sheet-like substrate (S) is transferred between the accommodation chamber (3) of the conveying robot (30) and the conveying chamber (2) on the side of the processing apparatus (1), and is vacuumized, and then an inert gas is introduced. Thereafter, gate valves (GV1 and GV2) of the accommodation chamber (3) and the conveying chamber (2) are opened and the thin sheet-like substrate (S) is carried in and out.
摘要:
An apparatus for producing a polymer, wherein the surface of a member contacting with the polymer of a device for melting and molding a raw material polymer has been subjected to a passivation treatment and is covered by a passive film, wherein ultra-pure water is used as a solvent to be injected into a molten polymer, to prevent the incorporation of a contaminant, and wherein an inert gas is fed to the line for discharging a gas, to prevent the contamination by back diffusion. As the above passive film, an aluminum oxide film or a chromium oxide film is preferred.