| Patent Number |
Title Of Patent |
Date Issued |
| 6952656 |
Wafer fabrication data acquisition and management systems |
October 4, 2005 |
| The present invention provides a semiconductor processing device (800) including a tool (802) having one or more sensors, a primary data communication port (804) and a secondary data communication port (806). A sensor data acquisition subsystem (808) acquires sensor data from the tool |
| 6556949 |
Semiconductor processing techniques |
April 29, 2003 |
| The present invention provides a manufacturing environment (210) for a wafer fab, and an SPDA data environment (212) for acquiring processing parameters and metrology data of production runs. A computation environment (214) processes the SPDA data to prepare delta graphs (536, 540 an |
| 5601153 |
Rock bit nozzle diffuser |
February 11, 1997 |
| A rotary cone rock bit for use in earthen formations with drilling fluid hydraulics wherein diffusion type nozzles are utilized in the outer diameters of a dome portion of the rock bit resulting in fluid, as it leaves the exit end of the nozzle, continues to diffuse outboard creating |
| 5415243 |
Rock bit borhole back reaming method |
May 16, 1995 |
| A method to back ream a borehole drilled with a roller cone drill bit is taught. Protruding hard metal cutting inserts are affixed on the upper outside diameter tapered shoulder of each of the bit legs. If the borehole closes to a smaller diameter than the bit gage diameter or loose rock |
