Steven E Duda

US Patent:

6426636, Jul 30, 2002

Filed:

Feb 11, 1998

Appl. No.:

09/022240

Inventors:

Gobinda Das - Hopewell Junction NY
Steven J. Duda - Underhill Center VT
Paul M. Gaschke - Wappingers Falls NY
Angelo M. Giaimo - Wappingers Falls NY
John F. Vetrero - Highland NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G01R 3102

US Classification:

324754, 324755

Abstract:

A nonresilient rigid test probe arrangement which is designed for testing the integrity of silicon semiconductor device wafers or chips, and which eliminates pliant conditions encountered by current text fixtures, which are adverse to the attainment of satisfactory test results with rigid probes. The test system interface assembly includes a rigid ceramic substrate which forms a pedestal over which the rigid probe makes electrical contact. A PC board is located on the opposite side of the ceramic substrate. A clamp ring retains the PC board to a test head system with mating precision reference surfaces formed therebetween. Pogo pin connectors extend between the PC board and the test head system. A stiffening element having a control aperture is bolted through the PC board to the clamp ring, all of which form a rigid test probe arrangement.

US Patent:

8524596, Sep 3, 2013

Filed:

Jul 16, 2012

Appl. No.:

13/550105

Inventors:

Frederic Beaulieu - Granby, CA
Gobinda Das - Hopewell Junction NY, US
Steven J. Duda - Underhill Center VT, US
Matthew J. Farinelli - Riverdale NY, US
Adreanne Kelly - Philadelphia PA, US
Samuel McKnight - New Paltz NY, US
William J. Murphy - N. Ferrisburg VT, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01L 21/44

US Classification:

438614, 438652, 257750

Abstract:

Techniques for bond pad fabrication are provided. In one aspect, a method of forming a bond pad comprises the following steps. At least one alloying element is selectively introduced to at least a portion of at least one surface of the bond pad. The at least one alloying element is diffused into at least a portion of the bond pad through one or more thermal cycles. The at least one alloying element may be selectively introduced to the bond pad by depositing an alloying element layer comprising the at least one alloying element onto the bond pad and patterning and etching at least a portion of the layer.

US Patent:

20060244138, Nov 2, 2006

Filed:

Apr 27, 2005

Appl. No.:

11/115936

Inventors:

Frederic Beaulieu - Granby, CA
Gobinda Das - Hopewell Junction NY, US
Steven Duda - Underhill Center VT, US
Matthew Farinelli - Riverdale NY, US
Adreanne Kelly - Philadelphia PA, US
Samuel McKnight - New Paltz NY, US
William Murphy - N. Ferrisburg VT, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01L 23/495

US Classification:

257736000

Abstract:

Techniques for bond pad fabrication are provided. In one aspect, a method of forming a bond pad comprises the following steps. At least one alloying element is selectively introduced to at least a portion of at least one surface of the bond pad. The at least one alloying element is diffused into at least a portion of the bond pad through one or more thermal cycles. The at least one alloying element may be selectively introduced to the bond pad by depositing an alloying element layer comprising the at least one alloying element onto the bond pad and patterning and etching at least a portion of the layer.

US Patent:

6411112, Jun 25, 2002

Filed:

Feb 19, 1998

Appl. No.:

09/026382

Inventors:

Gobinda Das - Hopewell Junction NY
Steven J. Duda - Underhill Center VT
Paul M. Gaschke - Wappingers Falls NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G01R 3102

US Classification:

324754, 324761

Abstract:

A probe system for electrical contact testing of a row of densely spaced wire bonding pads is provided comprising a plurality of probes, with each probe having a tip offset from the probe center axis. The probes may be mounted in a housing having an upper die and a lower die, and the lower die may be offset from the upper die. The probes are pivotally mounted in the holes of the upper die, and the probe bodies are convexly curved and extend down into the holes of the lower die. The bevel tipped probes may be arranged in two staggered and parallel rows of probes, with the tip of each probe oriented along the centerline formed between the two row of probes. The probes may be closely spaced in each row. The tips of the probes in one row are oriented 180 degrees with respect to the probes in the opposite row. The tips of each probe may also comprise a tip located along the center axis or a double bevel surface forming a tip at the apex of the two bevel surfaces.