Abstract: A semiconductor processing device can include a reactor assembly comprising a reaction chamber sized to receive a substrate therein. An exhaust line can be in fluid communication with the reaction chamber, the exhaust line configured to transfer gas out of the reaction chamber. A valve can be disposed along the exhaust line to regulate the flow of the gas along the exhaust line. A control system can be configured to operate in an open loop control mode to control the operation of the valve.

Abstract: Apparatus and method for semiconductor substrate processing are presented. For devices such as valves used for semiconductor substrate processing especially a process like ALD, there is a need to monitor and control the exact time taken from the signal to open and close the valves so that delay times may be controlled. In an embodiment, an apparatus comprising a reactor, a valve, a process controller and a valve monitor system is presented. The process controller may be operationally connected to the valve and may be provided with a memory. The sensors may be either electrical or optical sensors.

Abstract: A semiconductor processing device can include a reactor assembly comprising a reaction chamber sized to receive a substrate therein. An exhaust line can be in fluid communication with the reaction chamber, the exhaust line configured to transfer gas out of the reaction chamber. A valve can be disposed along the exhaust line to regulate the flow of the gas along the exhaust line. A control system can be configured to operate in an open loop control mode to control the operation of the valve.

Abstract: A semiconductor processing device can include a reactor assembly comprising a reaction chamber sized to receive a substrate therein. An exhaust line can be in fluid communication with the reaction chamber, the exhaust line configured to transfer gas out of the reaction chamber. A valve can be disposed along the exhaust line to regulate the flow of the gas along the exhaust line. A control system can be configured to operate in an open loop control mode to control the operation of the valve.

Abstract: A semiconductor processing device can include a reactor assembly comprising a reaction chamber sized to receive a substrate therein. An exhaust line can be in fluid communication with the reaction chamber, the exhaust line configured to transfer gas out of the reaction chamber. A valve can be disposed along the exhaust line to regulate the flow of the gas along the exhaust line. A control system can be configured to operate in an open loop control mode to control the operation of the valve.