Abstract: A method for implementing alignment of a semiconductor device structure includes forming first and second sets of alignment marks within a lower level of the structure, the second set of alignment marks adjacent the first set of alignment marks. An opaque layer is formed over the lower level, including the first and second sets of alignment marks. A portion of the opaque layer corresponding to the location of said first set of alignment marks is opened so as to render the first set optically visible while the second set of alignment marks initially remains covered by the opaque layer. The opaque layer is patterned using the optically visible first set of alignment marks, wherein the second set of alignment marks remain available for subsequent alignment operations in the event the first set becomes damaged during patterning of the opaque layer.
Type:
Grant
Filed:
March 18, 2008
Date of Patent:
May 25, 2010
Assignee:
International Business Machines Corporation
Inventors:
Sivananda K. Kanakasabapathy, David W. Abraham
Abstract: A color display apparatus comprises a substrate; thin film transistors formed on the substrate, each of the thin film transistors having a source electrode and a drain electrode; electroluminescence elements respectively formed over the thin film transistors and driven by the thin film transistors, each of the electroluminescence elements having a cathode connected to a source electrode or drain electrode of a thin film transistor, a luminous element layer, and an anode electrode sequentially disposed thereover. A color filter or fluorescent color conversion layer acting as a color element is formed on the side of the anode electrode of an electroluminescence element. The same luminous layer material is used for each display pixel to display a color image.
Abstract: A panelboard/switchboard assembly for accommodating bolt-on modules, plug-in modules and lugs. The panelboard/switchboard includes vertical, edge forward bus bars having a plurality of openings formed therein. The edge forward alignment allows plug-in modules to be mounted to the bus bars. The openings in the bus bars receive bolts for mounting straps to the bus bars and for mounting lugs to the bus bars. The openings have a shape having at least one linear element and receive a bolt having an anti-rotation portion with a similar shape. The interference between the opening and the anti-rotation portion of the bolt prevents the straps, and the modules connected to the straps, from rotating.
Type:
Grant
Filed:
December 8, 1997
Date of Patent:
May 9, 2000
Assignee:
General Electric Company
Inventors:
Kevin D. Mazzella, Kevin F. Nolan, Rick A. Vonrotz, Thomas F. Vrnak, Melanie A. Lewis, Grady W. Broadnax, Jr., Robert R. Leclair, Robert B. Wallace, Jeremy Palmer, Hamon L. Craft