摘要:
The invention provides methods, systems, and drivers for controlling an inkjet printing system. The driver may include logic including a processor, memory coupled to the logic, and a fire pulse generator circuit coupled to the logic. The fire pulse generator may include a connector to facilitate coupling the driver to a print head. The fire pulse generator circuit may also include a fixed current source circuit adapted to generate a fire pulse with a constant slew rate that facilitates easy adjustment of ink drop size. The logic is adapted to receive an image and to convert the image to an image data file. The image data file is adapted to be used by the driver to trigger the print head to deposit ink into pixel wells on a substrate as the substrate is moved in a print direction. Numerous other aspects are disclosed.
摘要:
Methods and apparatus for inkjet inkjet drop positioning are provided. A first method includes determining an intended deposition location of an ink drop on a substrate, depositing the ink drop on the substrate using an inkjet printing system, detecting a deposited location of the deposited ink drop on the substrate, comparing the deposited location to the intended location, determining a difference between the deposited location and the intended location, and compensating for the difference between the deposited location and the intended location by adjusting a parameter of an inkjet printing system. Numerous other aspects are provided.
摘要:
In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotate the print head about a center of the print head; and (4) an imaging system adapted to capture an image of the print head and to determine a center point of the print head based upon images of the print head captured as the print head is rotated. Numerous other aspects are provided.
摘要:
A method of PECVD deposition of silicon-containing films has been discovered and further developed. The method is particularly useful when the films are deposited on substrates having surface areas which are larger than 25,000 cm2. The method prevents the deposition of partially reacted silicon-containing species which form a powdery material or haze (contaminant compound) on the substrate surface. The contaminant compounds are avoided by assuring that the power applied to form a plasma in the PECVD process is maintained, at least at a minimal level, until reactive silicon-containing precursor gases present above the surface of the substrate have been reacted or evacuated from the plasma processing area.
摘要:
The present invention generally comprises a method and apparatus for supplemental pumping, gas feed, and/or RF current for a process. When depositing amorphous silicon, the amount of process gases, RF current, and vacuum may be less than the amount of process gases, RF current, and vacuum necessary to deposit microcrystalline silicon. When a single chamber is used to deposit both amorphous and microcrystalline silicon, coupling a supplemental power supply, a supplemental gas source, and a supplemental vacuum pump to the chamber may be beneficial. The supplemental power supply, vacuum pump, and gas source, may be coupled with the chamber when the microcrystalline silicon is deposited and uncoupled when amorphous silicon is deposited. In a cluster tool arrangement, the supplemental power supply, vacuum pump, and gas source may serve multiple chambers that each deposit both amorphous and microcrystalline silicon.
摘要:
A sputtering target assembly and method for bonding a sputtering target to a backing plate is disclosed. When insulatively bonding a sputtering target to a backing plate, it is necessary to ensure that the bonding material has good thermal conductivity so that the temperature of the target can be effectively controlled. It is also important to not have electrical conductivity through the bonding materials. In order to achieve both goals, it is beneficial to utilize an elastomer with diamond powder filler. Diamond power has very good thermal conductivity, and it also has very good dielectric strength. Diamond is a thermally effective and cost effective substitute for silver in insulative bonding.
摘要:
RF power is coupled with different phase offsets to different RF connection points on an electrode of a plasma chamber. Preferably, the number of different RF connection points and corresponding phase offsets is at least four, and the positions of the RF connection points are distributed along two orthogonal dimensions of the electrode. Preferably, power to each respective RF connection point is supplied by a respective RF power supply, wherein each power supply synchronizes its phase to a common reference RF oscillator.
摘要:
In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotate the print head about a center of the print head; and (4) an imaging system adapted to capture an image of the print head and to determine a center point of the print head based upon images of the print head captured as the print head is rotated. Numerous other aspects are provided.
摘要:
A plasma enhanced chemical vapor deposition chamber (PECVD) which includes a backing plate that provides support to a diffuser. The backing plate includes a plurality of fluid conduits adapted for circulation of a cooling fluid therethrough to remove excess heat generated in the chamber by the plasma to thereby maintain the backing plate in a stable condition thereby maintaining the diffuser in a stable position during the deposition of material from the plasma.
摘要:
An apparatus and method for supporting a substantial center portion of a gas distribution plate is disclosed. At least one support member is capable of engaging and disengaging the diffuser with a mating connection without prohibiting flow of a gas or gases through the diffuser and is designed to provide vertical suspension to a diffuser that is supported at its perimeter, or capable of supporting the diffuser without a perimeter support. In one aspect, the at least one support member is a portion of a gas delivery conduit and in another embodiment is a plurality of support members separated from the gas delivery conduit. The at least one support member is capable of translating vertical lift, or vertical compression to a center area of the diffuser. A method and apparatus for controlling gas flow from the gas delivery conduit to the gas distribution plate is also disclosed.