Joseph J Sousa

US Patent:

7916057, Mar 29, 2011

Filed:

Apr 27, 2009

Appl. No.:

12/430482

Inventors:

Andrew Joseph Thomas - Arlington MA, US
Joseph Luis Sousa - Lawrence MA, US

Assignee:

Linear Technology Corporation - Milpitas CA

International Classification:

H03M 1/66

US Classification:

341144, 341150, 341172

Abstract:

A circuit includes a digital-to-analog converter configured to produce an analog output signal (1) proportional to a reference signal and (2) as a function of a digital input signal. The converter comprises a plurality of non-trivially complex admittances configured so that each non-trivially complex admittance can be selectively switched as a function of the digital input signal so as to be coupled between a reference terminal configured to receive a reference signal and an output terminal. The method comprises selectively switching non-trivially complex admittances as a function of the digital signal between a reference terminal and an output terminal.

US Patent:

8018370, Sep 13, 2011

Filed:

Feb 1, 2010

Appl. No.:

12/698020

Inventors:

Andrew J. Thomas - Arlington MA, US
Joseph L. Sousa - Lawrence MA, US

Assignee:

Linear Technology Corporation - Milpitas CA

International Classification:

H03M 1/34

US Classification:

341162, 341118, 341120, 341155, 341161, 341163

Abstract:

A system is configured and a method is provided for receiving an input ratio represented by a first input signal and a second input signal, and producing an output ratio represented by a first output signal and a second output signal. The system is constructed and the method is provided for alternately operating in at least two time periods, wherein in one time period the first input signal, a low accuracy amplifier, and the first output signal are selectively coupled, and in another time period the input signal, the low accuracy amplifier, a high accuracy attenuator, and the second output signal are selectively coupled so as to maintain the output ratio proportional to the input ratio.

US Patent:

20230094483, Mar 30, 2023

Filed:

Sep 23, 2022

Appl. No.:

17/951429

Inventors:

- Billerica MA, US
Joseph SOUSA - Lakeville MA, US
Elango Balu - North Reading MA, US
Laundy Oeur - Lowell MA, US
Ajoy ZUTSHI - Fremont CA, US

International Classification:

B24B 53/017
B24B 37/16
B24B 37/14

Abstract:

A chemical mechanical planarization (CMP) pad conditioner assembly includes a backing plate including at least one polymer and at least one additive. The at least one additive is present in an amount sufficient to result in a backing plate having at least one of a magnetic property, a color property, a structural property, or any combination thereof. The CMP pad conditioner assembly includes a plurality of segments including a ceramic substrate and a plurality of laser textured protrusions integral with the ceramic substrate. The plurality of laser textured protrusions is coated with a conformal diamond layer.