Binh L Vo

US Patent:

7024327, Apr 4, 2006

Filed:

Dec 18, 2002

Appl. No.:

10/323506

Inventors:

Jayabrata Ghosh Dastidar - Santa Clara CA, US
Adam Wright - Santa Clara CA, US
Hung Hing Anthony Pang - San Jose CA, US
Binh Vo - San Jose CA, US
Ajay Nagarandal - Sunnyvale CA, US
Paul J. Tracy - Sunnyvale CA, US
Michael Harms - Pleasanton CA, US

Assignee:

Altera Corporation - San Jose CA

International Classification:

G01R 31/00
G01R 31/14

US Classification:

702117

Abstract:

Programmable circuits have a programmable interconnect structure that connects programmable circuit elements. Tests patterns can be automatically generated for the programmable circuit elements and interconnections on a programmable circuit. A connectivity graph represents programmable interconnections and functions as nodes. Tests routes are generated that connect the nodes in the connectivity graph between control points and observation points on the programmable circuit. The routes are grouped into configuration patterns that can be tested in one test cycle. Test vectors are then applied to the routes to determine if the interconnects and circuit functions are operable. Systems and methods of the present invention automatically create test patterns for a programmable circuit to reduce engineer time. The present invention also reduces test time and resources by increasing the number of interconnections and circuit elements tested in each configuration pattern.

US Patent:

7571412, Aug 4, 2009

Filed:

Mar 15, 2006

Appl. No.:

11/377714

Inventors:

Hung Hing Anthony Pang - San Jose CA, US
Binh Vo - San Jose CA, US
Souvik Ghosh - San Jose CA, US

Assignee:

Altera Corporation - San Jose CA

International Classification:

G06F 17/50

US Classification:

716 12, 716 13, 716 14, 716 15, 716 16, 714724, 714725, 703 14, 703 19

Abstract:

A method for generating automatic design characterization patterns for integrated circuits (IC) is provided. The method includes selecting a routing scheme from a file containing the device description of the routings of the IC. The routing scheme may be of a phase locked loop, clock tree, delay element, or input output block in one embodiment. Resource types for the routing scheme are identified and a path is defined, within constraints, between the resources. Once a path is defined, alternate paths are defined by retracing the path within constraints from an end of the path to the beginning of the path. An alternative path is then built and the alternative path shares a portion of the path previously defined. A computing system providing the functionality of the method is also provided.

US Patent:

7685485, Mar 23, 2010

Filed:

Oct 30, 2003

Appl. No.:

10/698739

Inventors:

Binh Vo - San Jose CA, US
Wan-Pin Hung - Saratoga CA, US
David Huang - Fremont CA, US
Peter Boyle - Mountain View CA, US
Qi Richard Chen - Sunnyvale CA, US
Kaiyu Ren - San Jose CA, US
Adam J. Wright - San Jose CA, US
John DiCosola - Pleasanton CA, US
Laiq Chughtai - Fremont CA, US
Seng Yew Lim - Penang, MY

Assignee:

Altera Corporation - San Jose CA

International Classification:

G01R 31/28

US Classification:

714725, 714 25

Abstract:

Techniques are provided for isolating failed routing resources on a programmable circuit. Failing test patterns and the test logs are fed to a Statistical Failure Isolation (SFI) tool. The SFI tool extracts failing paths from the test patterns. A statistical analysis is performed on interconnect resources related to failing paths. The resources on the paths are then tallied to create a histogram of resources. These resources are then be fed into an Adaptive Failure Isolation (AFI) tool to auto-generate verification patterns. A tester uses the verification patterns to isolate failed interconnect resources.

US Patent:

8010510, Aug 30, 2011

Filed:

Jul 2, 2008

Appl. No.:

12/167116

Inventors:

Binh Vo - Mountain View CA, US
Gurmeet Singii Manku - Mountain View CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 7/00
G06F 17/30

US Classification:

707693

Abstract:

A tokenized stream including n tokens, each token including two or more portions, is received and a first sort order based on a sort of a set of the first portions of the n tokens is determined. The first sort order is applied to reorder a set of the second portions of the n tokens. The above steps are repeated to determine a sort order based on a set of portions of the n tokens and to apply the sort order to another set of portions of the n tokens column until a cset of portions been reordered by a (c−1)sort order. The variable c is a desired number of sets to be sorted. The variables c and n are whole numbers and the n tokens are dispersed during reordering.

US Patent:

8516322, Aug 20, 2013

Filed:

Sep 28, 2009

Appl. No.:

12/568136

Inventors:

Jayabrata Ghosh Dastidar - Santa Clara CA, US
Alok Shreekant Doshi - Sunnyvale CA, US
Binh Vo - Los Gatos CA, US
Kalyana Ravindra Kantipudi - Sunnyvale CA, US
Sergey Timokhin - Palo Alto CA, US

Assignee:

Altera Corporation - San Jose CA

International Classification:

G01R 31/3183
G01R 31/40

US Classification:

714738, 714725

Abstract:

A programmable integrated circuit may contain multiple logic blocks. Computing equipment may be used to run automated tools that process a design for the programmable integrated circuit to perform corresponding circuit tests. A translation tool may translate a transistor-level description of circuitry on the programmable integrated circuit into a gate-level description. A block-level test configuration data generation tool may generate block-level test configuration data files. The test configuration data files may be used as constraints for an automatic test pattern generation tool that produces block-level test vectors. A full-chip propagation tool may use the block-level test vectors, block-level test configuration data files, and full-chip constraints to produce corresponding full-chip test configuration data and full-chip test vectors for testing the integrated circuit. A translation tool may convert the configuration data and test vectors into a tester file.

US Patent:

59936282, Nov 30, 1999

Filed:

Apr 17, 1998

Appl. No.:

9/062381

Inventors:

Barton G. Selby - San Carlos CA
Johan Goudberg - San Jose CA
Binh Vo - San Jose CA
David Clark - Hayward CA

Assignee:

The Perkin-Elmer Corporation - Foster City CA

International Classification:

G01N 2726
G01N 27447

US Classification:

204470

Abstract:

The present invention relates to the electrophoretic separation of bio-organic molecules using a slab gel electrophoresis apparatus having a pair of spaced, confronting plates defining a multi-lane separation zone adapted to hold a separation medium and an upper loading zone. In one aspect of the invention, at least one of the plates is shaped to provide an expanded loading zone. The plate-to-plate distance within the expanded loading zone is greater than the plate-to-plate width within the separation zone. In another aspect of the invention, a comb is provided with each tooth having a gradual taper beginning at a support member and extending along most of the tooth's longitudinal axis, and a sharp taper beginning immediately beyond the gradual taper and extending to the end of the tooth. In a related aspect of the invention, a method is provided wherein a comb is inserted into the loading zone so that the teeth penetrate an upper portion of the separation medium, thereby forming a series of fluid-tight, elongate sample-loading apertures of substantially rectangular cross-section having a plate-to-plate width greater than that of the inter-plate distance in the separation zone.

US Patent:

61714631, Jan 9, 2001

Filed:

Apr 28, 1999

Appl. No.:

9/301080

Inventors:

Barton G. Selby - San Carlos CA
Johan Goudberg - San Jose CA
Binh Vo - San Jose CA
David Clark - Hayward CA
Thomas Schefer - Reinheim, DE
Munechika Sakabe - Hasuda, JP

Assignee:

The Perkin-Elmer Corporation - Foster City CA

International Classification:

G01N 2726
G01N 27447

US Classification:

204456

Abstract:

The present invention relates to the electrophoretic separation of bio-organic molecules using a slab gel electrophoresis apparatus having a pair of spaced, confronting plates defining a multi-lane separation zone adapted to hold a separation medium and an upper loading zone. In one aspect of the invention, at least one of the plates is shaped to provide an expanded loading zone. The plate-to-plate distance within the expanded loading zone is greater than the plate-to-plate width within the separation zone. In another aspect of the invention, a comb is provided with each tooth having a gradual taper beginning at a support member and extending along most of the tooth's longitudinal axis, and a sharp taper beginning immediately beyond the gradual taper and extending to the end of the tooth. In a related aspect of the invention, a method is provided wherein a comb is inserted into the loading zone so that the teeth penetrate an upper portion of the separation medium, thereby forming a series of fluid-tight, elongate sample-loading apertures of substantially rectangular cross-section having a plate-to-plate width greater than that of the inter-plate distance in the separation zone. Methods of separating biomolecule analytes for optimized resolution and increased base reads are also disclosed.