Patent classifications
H01J7/24
Wireless color tuning for constant-current driver
Various embodiments include apparatuses and methods enabling a wireless control apparatus for an LED array. In one example, a control apparatus includes a wireless module to receive a signal from a wireless control-device. The wireless signal may include signals related to a desired CCT value and a D.sub.uv value. A control unit is coupled to the wireless module to translate signals received from the wireless module. The control unit is also coupled to the LED array and to an LED driver. The control unit receive powers for the LED array from the LED driver and provides the power to the LED array in a manner based on the translated signals. A dimmer emulator is coupled to the control unit to provide one or more control signals to the LED driver. Other apparatuses and methods are described.
Plasma generating device
A plasma generating device is an inductively coupled plasma generating device comprising an antenna coil that generates plasma in a vacuum chamber, a high-frequency power source that is connected to a reference potential to be referred for plasma potential and that applies high-frequency voltage to the antenna coil, and a resonance circuit provided between the antenna coil and the high-frequency power source. The resonance circuit comprises a first series reactance element that is connected in series to one end portion of the antenna coil and has at least a capacitance component and a second series reactance element that is connected in series to the other end portion of the antenna coil and has at least a capacitance component. The circuit configuration at one side and the circuit configuration at the other side are electrically symmetrical.
Impedance matching using independent capacitance and frequency control
In one embodiment, the present disclosure is directed to an RF impedance matching network that includes an RF input coupled to an RF source, an RF output coupled to a plasma chamber, and an electronically variable capacitor (EVC). A first control circuit controls the EVC and is separate and distinct from a second control circuit controlling the RF source. To assist in causing an impedance match between the RF source and the plasma chamber, the first control circuit determines, using a match lookup table with a value based on a detected RF parameter, a new EVC configuration for providing a new EVC capacitance. To further cause the impedance match, the second control circuit alters the variable frequency of the RF source, but operates independently from the first control circuit.
High power ion beam generator systems and methods
Provided herein are high energy ion beam generator systems and methods that provide low cost, high performance, robust, consistent, uniform, low gas consumption and high current/high-moderate voltage generation of neutrons and protons. Such systems and methods find use for the commercial-scale generation of neutrons and protons for a wide variety of research, medical, security, and industrial processes.
White light source system
According to one embodiment, there is provided a white light source system. P(), B() and V() satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm:
.sub.380.sup.780P()V()d=.sub.380.sup.780B()V()d(1)
P()/B()1.8.(2) where P() is a light emission spectrum of white light, B() is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V() is a spectrum of a spectral luminous efficiency.
Plasma processing apparatus and control method
A plasma processing apparatus includes: a processing container; an electrode that places a workpiece thereon; a plasma generation source that supplies plasma into the processing container; a bias power supply that supplies a bias power to the electrode; an edge ring disposed at a periphery of the workpiece; a DC power supply that supplies a DC voltage to the edge ring; a controller that executes a first control procedure in which the DC voltage periodically repeats a first state having a first voltage value and a second state having a second voltage value, the first voltage value is supplied in a partial time period within each period of a potential of the electrode, and the second voltage value is supplied such that the first and second states are continuous.
Plasma generation apparatus
Provided is a plasma generation apparatus including: a housing in which a window is defined at one side in a first direction; a stick type plasma source provided in the housing to generate plasma toward the window; and a driving unit coupled to the plasma source to allow one end of the plasma source to perform a reciprocating movement in a second direction that is a longitudinal direction of the window.
High power ion beam generator systems and methods
Provided herein are high energy ion beam generator systems and methods that provide low cost, high performance, robust, consistent, uniform, low gas consumption and high current/high-moderate voltage generation of neutrons and protons. Such systems and methods find use for the commercial-scale generation of neutrons and protons for a wide variety of research, medical, security, and industrial processes.
Methods and apparatuses for plasma chamber matching and fault identification
Methods of operating and assembling a plasma chamber are disclosed. An operating method includes tuning a match network of a plasma chamber while running a non-plasma discharge recipe. A hardware impedance of the plasma chamber is calculated from the match network settings from the tuning. A match loss for the plasma chamber is also calculated according to match network settings. A radio frequency (RF) power setting for the first plasma chamber is set according to the calculated hardware impedance and the calculated match loss. Such methods can be utilized to provide chamber-to-chamber performance matching across different plasma chambers. Certain disclosed methods of operating the plasma chamber can be utilized to identify hardware faults during operation and/or assembly processes.
Ion source
An ion source is provided. The ion source includes a plasma generation chamber, a plate member, and an extraction electrode. The plasma generation chamber is supplied with a halogen-containing material. The plate member is provided on an end of the plasma generation chamber located on a side toward which an ion beam is extracted. The extraction electrode is disposed downstream of the plate member. The plate member is formed with a gas supply passage via which hydrogen gas is supplied to the extraction electrode.