Simon M Bikulcius

US Patent:

6661079, Dec 9, 2003

Filed:

Feb 20, 2002

Appl. No.:

10/078844

Inventors:

Simon Bikulcius - San Jose CA

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

H01L 2900

US Classification:

257532, 257531

Abstract:

Increased capacitance per unit of area with reduced series resistance and inductance is provided by a semiconductor-based capacitor with a spiral shape. The capacitor utilizes a plurality of patterned metal layers that each have a first trace with a spiral shape and a second trace with a spiral shape. The second trace is formed between the loops of the first trace, and around the first trace.

US Patent:

6788511, Sep 7, 2004

Filed:

Nov 9, 2001

Appl. No.:

10/037735

Inventors:

Simon Bikulcius - Sunnyvale CA
Mark A. Landguth - La Jolla CA

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

H02H 324

US Classification:

361 92, 307 64

Abstract:

A domain power notification system detects when a power domain experiences a power condition, such as lost power and low-voltage power, and communicates that information to the domains that communicate with the problem domain. As a result, the effected domains stop communicating with the problem domain without passing erroneous information.

US Patent:

7142404, Nov 28, 2006

Filed:

Jun 9, 2004

Appl. No.:

10/864137

Inventors:

Simon Bikulcius - Sunnyvale CA, US
Mark A. Landguth - La Jolla CA, US

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

H02H 3/24

US Classification:

361 92, 340663, 340635, 714 14

Abstract:

A domain power notification system detects when a power domain experiences a power condition, such as lost power and low-voltage power, and communicates that information to the domains that communicate with the problem domain. As a result, the effected domains stop communicating with the problem domain without passing erroneous information.

US Patent:

8037371, Oct 11, 2011

Filed:

May 14, 2007

Appl. No.:

11/803231

Inventors:

Simon Bikulcius - San Jose CA, US
Vadim Tsinker - Belmont CA, US

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

G06K 5/04
G11B 5/00
G11B 20/20

US Classification:

714700, 714724, 375224, 375226

Abstract:

A testing device for testing a high-speed serial transmitter or other device includes an input stage having a first comparator, a second comparator, and a digital-to-analog converter. The first comparator compares first differential signals from a device under test. The second comparator compares the first differential signals and second differential signals from the digital-to-analog converter. An analysis unit identifies first beats based on an output of the first comparator and second beats based on an output of the second comparator. The analysis unit identifies one or more characteristics of the device under test (such as jitter, differential signal swing, and transition time) based on the first and second beats. A clock unit provides an adjustable clock signal to the comparators. The clock signal may have a frequency shift with respect to a frequency of the device under test.

US Patent:

6515523, Feb 4, 2003

Filed:

May 23, 2001

Appl. No.:

09/864662

Inventors:

Simon Bikulcius - Sunnyvale CA

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

H03L 700

US Classification:

327142, 327143, 327198

Abstract:

A method and apparatus is directed to a power-on reset circuit for providing a power-on reset signal having a rising edge and an adjustable falling edge. A reference generator circuit produces two different reference signals in response to a power supply signal. The two reference signals are compared by a comparison circuit to produce a resulting reference signal. The resulting reference signal tracks the power supply signal until a first threshold potential is reached. When the first threshold potential is reached, a rising edge is produced in the power-on reset signal. The rising edge indicates that the power supply signal has reached an operating potential. A second threshold potential corresponds to the adjustable falling edge of the power-on reset signal. When the power supply signal decreases below the second threshold potential, the adjustable falling edge is produced in the power-on reset signal. The second threshold potential is adjusted when an adjustment circuit selectively couples additional transistors to the reference generator circuit.