Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6609229 | Method for automatically generating checkers for finding functional defects in a description of a circuit A programmed computer generates descriptions of circuits (called "checkers") that flag functional defects in a description of a circuit undergoing functional verification. The programmed computer automatically converts the circuit's description into a gra... | 08/19/2003 |
| 6606735 | Method and system for using error and filter layers in each DRC rule A method automatically specifies a unique number of an error layer for each DRC rule in a runset. Therefore, all errors related to a given DRC rule are reported by a layout verification tool in the uniquely specified error layer. Furthermore, the method a... | 08/12/2003 |
| 6568133 | Beverage holder tray on outdoor enclosure An outdoor enclosure including a main compartment housing electronic components and a door coupled to the main compartment. A beverage holder tray is mounted on an inner surface of the door. The beverage holder tray may be folded into a closed position an... | 05/27/2003 |
| 6493866 | Phase-shift lithography mapping and apparatus For phase-shifting microlithography, a method of assigning phase to a set of shifter polygons in a mask layer separated by a set of target features includes assigning a first phase to a first shifter polygon, identifying a set of target features that touc... | 12/10/2002 |
