Brian A Macdonald

US Patent:

20030217462, Nov 27, 2003

Filed:

Dec 13, 2001

Appl. No.:

10/021994

Inventors:

Fei Wang - San Jose CA, US
Brian MacDonald - San Francisco CA, US
Amit Marathe - Milpitas CA, US
John Sanchez - Palo Alto CA, US
Pin-Chin Wang - Menlo Park CA, US
Joffre Bernard - Redwood City CA, US

International Classification:

H05K001/00
H05K003/00

US Classification:

029/846000, 029/830000, 029/840000, 029/829000, 174/254000

Abstract:

The reliability and electromigration performance of planarized metallization patterns in an electrical device, for example copper, inlaid in the surface of a layer of dielectric material overlying a semiconductor substrate, are enhanced by a method for more reliably and uniformly diffusing into a conductive fill alloying elements which reduce or substantially prevent electromigration. The method comprises depositing around a conductive fill metal alloy films and alloying layers comprising one or more alloying elements having physical and/or chemical attributes which are effective for minimizing or substantially preventing electromigration along grain boundaries and/or along the interface between the surfaces of the conductive fill and other surfaces. The metal alloy films and alloying layers are advantageously deposited where their particular physical and/or chemical attributes may be most beneficial for improving electromigration performance. The alloying elements may then be diffused into the conductive fill to effect alloying therewith.

US Patent:

20040267887, Dec 30, 2004

Filed:

Jun 30, 2003

Appl. No.:

10/611019

Inventors:

Kelly Berger - Milpitas CA, US
Brian MacDonald - Santa Cruz CA, US

International Classification:

G06F015/16

US Classification:

709/206000

Abstract:

A system is described for managing presence information comprising: a plurality of data processing devices capable of supporting communication over a plurality of different communication channels; a presence management module to manage presence information associated with a first user of the plurality of users, the presence management module to automatically provide the presence information to one or more other users, the presence information including an indication of one or more preferred communication channels for contacting the first user of the plurality of users; and a multi-mode communication module to generate a communication interface on data processing devices of the one or more other users, the communication interface containing a selectable list of the one or more preferred communication channels.