摘要:
A substrate support assembly and method for dechucking a substrate is provided. In one embodiment, a support assembly includes a substrate support having a support surface, a first set of lift pins and one or more other lift pins movably disposed through the substrate support. The first set of lift pins and the one or more lift pins project from the support surface when the pins are in an actuated position. When in the actuated position, the first set of lift pins project a longer distance from the support surface than the one or more other lift pins. In another aspect of the invention, a method for dechucking a substrate from a substrate support is provided. In one embodiment, the method includes the steps of projecting a first set of lift pins a first distance above a surface of a substrate support, and projecting a second set of lift pins a second distance above the surface of the substrate support that is less than the first distance.
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 includes a connector to facilitate coupling the driver to a print head. 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 are provided wherein data representative of an image is received, the data being indicative of a plurality of theoretical ink jetting drop positions. The data may be converted into an image data file, the image data file being indicative of a plurality of actual physical ink jetting drop positions, each physical ink jetting drop position corresponding to a theoretical ink jetting drop position. A print system may be controlled based on the image data file, wherein the actual physical ink jetting drop positions may each be selected based upon being within a predefined percentage of a print resolution in a printing direction of a corresponding one of the theoretical ink jetting drop positions.
摘要:
The present invention provides methods and apparatus for controlling the quantity of fluid output (e.g., drop size) by individual nozzles of a print head to a very high precision at a frequency equal to the frequency at which fluid is normally dispensed. This is achieved by mapping fluid quantity control information into the data that represents the image to be printed. Data representative of an image is received and converted into pixel data. In at least one embodiment, the pixel data includes pixels represented by N bits, and the N bits may represent a drop size for the pixel and a union of the N bits may represent a nozzle status. A print head may be controlled based on the pixel data, and the print head may include nozzles that are each adapted to deposit at least one drop size quantity of a fluid on a substrate.
摘要:
The embodiments of the present invention describe an apparatus and a method of visualizing droplets dispensed from an inkjet printing system. A droplet visualization system is integrated with the inkjet printing system and is capable of measuring the sizes and the speeds of dispensed inkjet droplets and capturing the trajectories of the dispensed inkjet droplets. The measured information regarding the sizes, the speeds and trajectories of the droplets is feedback to the inkjet printing system to monitor and to control the dispense operation of the inkjet printing system. Due to this feedback control, the uniformities of the sizes, the speeds and the trajectories can be monitored and be improved.
摘要:
An apparatus and method for holding a substrate on a support layer in a processing chamber. The method includes the steps of positioning the substrate a predetermined distance from the support layer, introducing a plasma in the processing chamber, lowering the substrate to a point where the substrate engages the support layer, and maintaining the plasma for a predetermined time. The apparatus is directed to a susceptor system for a processing chamber in which a substrate is electrostatically held essentially flat. The apparatus includes a substrate support and a support layer composed of a dielectric material disposed on the substrate support. At least one lift pin is used for supporting the substrate relative to the support layer. Means are provided for moving each lift pin relative to the support layer. Means are also provided for producing a plasma within the processing chamber.
摘要:
A shadow frame and framing system for semiconductor fabrication equipment comprising a rectangular frame having four edges, the edges forming an interior lip with a top surface and an bottom engagement surface; and a cross beam disposed between at least two edges of the frame, the cross beam having a top surface and a bottom engagement surface, the engagement surface of the cross beam configured to be flush with the engagement surface of the lip; wherein one or more of the engagement surfaces are configured to cover metal interconnect bonding areas on a carrier disposed below the frame. The shadow frame is particularly useful in plasma enhanced chemical vapor deposition (PECVD) applications used to make active matrix liquid crystal displays (AMLCDs) and solar cells.
摘要:
Embodiments of the invention generally provides an apparatus and a method for minimizing the deformation of a substrate during PECVD processing. In one aspect, the substrate is supported within a processing region on an insulating layer to provide uniform heating of the substrate.
摘要:
A system for processing substrates within a chamber and for cleaning accumulated material from chamber components is provided. The system includes a reactive species generator adapted to generate a reactive gas species for chemically etching accumulated material from chamber components, and a processing chamber having at least one component with a mirror polished surface which is exposed to the reactive species. Preferably to have the greatest impact on chamber cleaning efficiency, the mirror polished surface is a surface of a component such as a gas distribution plate or a backing plate, and/or is a surface of a plurality of smaller components (e.g., chamber wall liners, a gas conductance line, etc.) so as to constitute a large percentage of the surface area exposed to the reactive species. Most preferably all bare aluminum surfaces which the reactive species contacts are mirror polished.
摘要:
A gas inlet manifold for a plasma chamber having a perforated gas distribution plate suspended by a side wall comprising one or more sheets. The sheets preferably provide flexibility to alleviate stress in the gas distribution plate due to thermal expansion and contraction. In another aspect, the side wall provides thermal isolation between the gas distribution plate and other components of the chamber.