Patent application number | Description | Published |
20090305441 | NEXT GENERATION SCREEN PRINTING SYSTEM - Embodiments of the present invention provide an apparatus and method for processing substrates using a multiple screen printing chamber processing system that has an increased system throughput, improved system uptime, and improved device yield performance, while maintaining a repeatable and accurate screen printing process on the processed substrates. In one embodiment, the multiple screen printing chamber processing system is adapted to perform a screen printing process within a portion of a crystalline silicon solar cell production line in which a substrate is patterned with a desired material, and then processed in one or more subsequent processing chambers. | 12-10-2009 |
20100296903 | END EFFECTOR FOR HANDLING SUBSTRATES - Embodiments of the present invention provide an end effector for a substrate handling robot. In one embodiment, the end effector comprises one or more Bernoulli chucks surrounded by a plurality of suction cup devices. In one embodiment, the suction cup devices are configured in the form of a bellows to provide both cushioning and lateral stability to the substrate. In one embodiment, the suction cup devices further include an air pressure device to provide light positive pressure to the substrate during release. Embodiments of the end effector described herein provide a small vacuum pressure over a large area of ultra-thin substrates to minimize damage during handling. | 11-25-2010 |
20120227602 | Cleaning Device for an Apparatus for Silk-Screen Printing on a Print Support - Embodiments of the invention may provide a device for cleaning a silk-screen net of a silk-screen printing device. The silk-screen printing device may comprise a first shaft, a second shaft and a strip supported by the first shaft and the second shaft. The first shaft and the second shaft determine a movement of rotation of the strip along a determinate path, which is under the net, to remove the excess printing paste from the net. The strip is made of a non-elastic fabric material. The device also comprises a pressure roller of the rotary type, around part of which the strip is supported. The pressure roller is positioned along the path of the strip between the first shaft and the second shaft. The device also comprises a movement unit to move the pressure roller toward the net, to selectively take the strip into contact with the net with a desired pressure. | 09-13-2012 |
Patent application number | Description | Published |
20100165856 | CROSS-LAYER OPTIMIZATION IN MULTIMEDIA COMMUNICATIONS - An embodiment of a system for optimizing operation of a mobile station in a wireless communication network such as a WLAN by adapting the physical (PHY), medium access control (MAC), and application settings of a mobile station therein includes a network status estimation module to evaluate the channel conditions of a wireless channel to serve the mobile station in terms of transmission failure probability due to noise and interference, respectively, a transmission characterization module to determine expected network performance as a function of the settings of PHY, MAC and application parameters in the current channel conditions as evaluated by the network status estimation module, a quality evaluation module to determine the expected quality of communication for the mobile station as a function of different channel performance metrics, and a quality maximization module to interact with the characterization and quality evaluation modules to identify and select the settings of PHY, MAC and application parameters for the mobile station that provide an optimum quality for the mobile station. | 07-01-2010 |
20100169723 | LINK ADAPTATION IN WIRELESS NETWORKS - An embodiment of a system for physical link adaptation in a wireless communication network such as e.g., a WLAN, selectively varies the physical mode of operation of the transmission channels serving the mobile stations in the network. The system includes an estimation module to evaluate transmission losses due to collisions as well as transmission losses due to channel errors over the transmission channel, and an adaptation module to select the physical mode of operation of the transmission channel as a function of the transmission losses due to collisions and to channel errors as evaluated by the estimation module. | 07-01-2010 |
20130155848 | LINK ADAPTATION IN WIRELESS NETWORKS - An embodiment of a system for physical link adaptation in a wireless communication network such as e.g., a WLAN, selectively varies the physical mode of operation of the transmission channels serving the mobile stations in the network. The system includes an estimation module to evaluate transmission losses due to collisions as well as transmission losses due to channel errors over the transmission channel, and an adaptation module to select the physical mode of operation of the transmission channel as a function of the transmission losses due to collisions and to channel errors as evaluated by the estimation module. | 06-20-2013 |