Mks Instruments, Inc.

Lam Research Corporation

Eni Technology, Inc.

Mks Inc.

Jonathan W Smyka

Aaron T Radomski

Larry J Fisk, Ii

Aaron Michael Burry

John Patrick Holland

Alexei Marakhtanov

Felix Leib Kozakevich

David J Coumou

Bing Ji

Ranadeep Bhowmick

Mariusz Oldziej

Benjamin J Gitlin

Salvatore Polizzo

John Valcore, Jr

Yufeng Han

Peter Paul

Daniel J Lincoln

Sang-Won Lee

Vadim Lubomirsky

Sang Won Lee

Yogendra K Chawla

Jaehyun Kim

Linnell Martinez

Scott White

Aaron Burry

Larry J Fisk Ii

Larry J Ii Fisk

Ii Larry J Fisk

A power generator includes a power source and a control module coupled to the power source. The control module is configured to generate at least one control signal to vary a respective at least one of an output signal from the power source or an impedance between the power source and a load. The output signal includes a signal modulated by a pulse signal, and the control module is further configured to adjust the at least one control signal to vary at least one of an amplitude or a frequency of the output signal or the impedance between the power source and the load to control a shape of the pulse signal. The at least one of the amplitude, the frequency, or the impedance is adjusted in accordance with respective feedforward adjustments that vary in accordance with a respective sensed pulse parameter detected between a matching network and the load.

Adaptive pulse shaping with post match sensor

A radio frequency (RF) generator system includes first and second RF power sources, each RF power source applying a respective RF signal and second RF signal to a load. The first RF signal is applied in accordance with the application of the second RF signal. The application of the first RF signal is synchronized to application of the second RF signal. The first RF signal may be amplitude modulated in synchronization with the second RF signal, and the amplitude modulation can include blanking of the first RF signal. A frequency offset may be applied to the first RF signal in synchronization with the second RF signal. A variable actuator associated with the first RF power source may be controlled in accordance with the second RF signal.

High speed synchronization of plasma source/bias power delivery

A RF generator includes a RF power source and a RF control module coupled to the RF power source. The RF control module is configured to generate at least one control signal to vary a respective at least one of an RF output signal from the RF power source or an impedance between the RF power source and a load. The RF output signal includes a RF signal modulated by a pulse signal, and the RF control module is further configured to adjust the at least one control signal to vary at least one of an amplitude or a frequency of the RF output signal or the impedance between the RF power source and the load to control a shape of the pulse signal. The at least one of the amplitude, the frequency, or the impedance is adjusted in accordance with respective feedforward adjustments that vary in accordance with a respective sensed pulse parameter detected between a matching network and the load.

A repeating setpoint generator module selectively varies a setpoint for an output parameter according to a predetermined pattern that repeats during successive time intervals. A closed-loop module, during a first one of the time intervals, generates N closed-loop values based on N differences between (i) N values of the setpoint at N times during the first one of the time intervals and (ii) N measurements of the output parameter at the N times during the first one of the time intervals, respectively. An adjusting module, during the first one of the time intervals, generates N adjustment values based on N differences between (i) N values of the setpoint at the N times during a second one of the time intervals and (ii) N measurements of the output parameter at the N times during the second one of the time intervals, respectively.

Adaptive periodic waveform controller

A radio frequency (RF) generator is configured to generate a RF signal. The RF signal can be modulated by a pulse having one or multiple states. During an initial state at pulse initiation, the RF generator adjusts the impedance match by selecting the frequency of the RF signal. During a second state of the pulse, the RF generator adjusts the impedance match using a matching network. The first state includes controlling the RF generator to output a power burst, and the second state includes controlling the generator to output an operating power.

Method and apparatus to enhance sheath formation, evolution and pulse to pulse stability in RF powered plasma applications

An RF supply system in which a bias RF generator operates at a first frequency to provide a bias RF output signal and a source RF generator operates at a second frequency to provide a source RF output signal. The RF output power signals are applied to a load, such as a plasma chamber. The source RF generator detects a triggering event. In response to the triggering event, the source RF generator initiates adding frequency offsets to the source RF output signal in order to respond to impedance fluctuations in the plasma chamber that occur with respect to the triggering event. The triggering event detected by the source RF generator can be received from the bias RF generator in the form of a control signal that varies in accordance with the bias RF output signal.

Plasma RF bias cancellation system

A scalable radio frequency (RF) generator system including at least one power supply, at least one power amplifier receiving input from the power supply, and a power supply control module, and a system controller. Output from the at least one power supply can be combined and applied to each of the power amplifiers. Output form each of the at least one power amplifiers can be combined to generate a single RF signal. A compensator module controls operation of the at least one power supply. The compensator module, system control module, and power supply controller communicate in a daisy chain configuration.

High reliability RF generator architecture

A radio frequency (RF) system is disclosed. The RF system includes an RF sensor, an analog to digital converter (ADC) module, a processing module, and a synchronization module. The RF sensor measures a parameter of an RF output and generates an RF signal based on the parameter. The ADC module converts samples of the RF signal into digital values. The processing module generates processed values based on the digital values. The synchronization module outputs one of the processed values in response to a transition in the RF output.

Synchronization of RF pulsing with RF metrology, processing, and control

An arc detection system includes a radio frequency (RF) signal probe that senses a RF signal at an input of a RF plasma chamber and that generates a signal based on at least one of the voltage, current, and power of the RF signal. A signal analyzer receives the signal, monitors the signal for frequency components that have a frequency greater than or equal to a fundamental frequency of the RF signal, and generates an output signal based on the frequency components. The output signal indicates that an arc is occurring in the RF plasma chamber.

Harmonic derived arc detector

A data communication system and method is presented for communicating data between the internal assemblies of a material processing system. The data communication system includes at least two digital communication ports for communicating data between internal assemblies of the material processing system. A first digital communication port associated with a first internal assembly in interconnected via a physical link to a second digital communication port associated with a second internal assembly. The first digital communication port includes a serial transmitter for converting the data to a transmit serial stream having at least one information frame. A signal generator formats the transmit serial stream as a transmit signal to be transmitted over the physical link to the second digital communication port. The second digital communication port includes a signal converter for receiving the transmit signal from the first digital communication port and generating a receive serial stream therefrom. A serial receiver processes the serial stream and extracts the at least one information frame therefrom.

Internal noise immune data communications scheme

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Rochester, NY, United States of America

Jonathan W Smyka