Abstract: A method for processing a semiconductor memory device is disclosed, the memory device including an array area and a support area thereon. In an exemplary embodiment of the invention, the method includes removing, from the array area, an initial pad nitride material formed on the device. The initial pad nitride material in the support area, however, is still maintained. Active device areas are then formed within the array area, wherein the initial pad nitride maintained in the support area helps to protect the support area from wet etch processes implemented during the formation of active device areas within the array area.
Type:
Grant
Filed:
May 27, 2003
Date of Patent:
September 14, 2004
Assignee:
International Business Machines Corporation
Inventors:
Rajeev Malik, Larry Nesbit, Jochen Beintner, Rama Divakaruni
Abstract: An apparatus for capturing a data signal sent from a transmitting source to a receiving element, the data signal being accompanied by a first clock signal in a source synchronous system. In an exemplary embodiment, the apparatus comprises a delay element having an input coupled to the first clock signal and an output producing a delayed first clock signal. The delay element further includes a plurality of delay latches, having a second clock signal as a clock input thereto, the second clock signal having a frequency which is a multiple of the frequency of the first clock signal. The data signal is captured by the receiving element when the receiving element is triggered by an edge of the delayed first clock signal.
Type:
Grant
Filed:
June 22, 2001
Date of Patent:
August 31, 2004
Assignee:
International Business Machines Corporation
Inventors:
Leonard R. Chieco, Louis T. Fasano, Michael A. Sorna
Abstract: A method and structure for fabricating isolation regions on a silicon on insulator (SOI) substrate, wherein the SOI substrate comprises a buried oxide layer and a silicon layer disposed on the buried oxide layer, wherein the silicon layer is less than about 20 nanometers. The method and structure includes a nitride liner layer conformally deposited in the isolation regions.
Type:
Grant
Filed:
January 2, 2003
Date of Patent:
August 10, 2004
Assignee:
International Business Machines Corporation
Abstract: This invention relates to a method of forming a bottomless liner structure. The method involves the steps of first obtaining a material having a via. Next, a first layer is deposited on the material, the first layer covering the sidewalls and bottom of the via. Finally, a second layer is sputter deposited on the first material, the material Rf biased during at least a portion of the time that the second layer is sputter deposited, such that the first layer deposited on the bottom of the via is substantially removed and substantially all of the first layer deposited on the sidewalls of the via is unaffected.
Type:
Grant
Filed:
March 4, 1999
Date of Patent:
July 27, 2004
Assignee:
International Business Machines Corporation