Alan L Wang

US Patent:

6416836, Jul 9, 2002

Filed:

Oct 13, 1999

Appl. No.:

09/416998

Inventors:

Robert J. Falster - London, GB
Martin Jeffrey Binns - St. Charles MO
Alan Wang - OFallon MO

Assignee:

MEMC Electronic Materials, Inc. - St. Peters MO

International Classification:

C30B 2906

US Classification:

428 641, 428446, 117932, 423348

Abstract:

A single crystal silicon wafer having a central axis, a front side and a back side which are generally perpendicular to the central axis, a central plane between the front and back sides, a circumferential edge, and a radius extending from the central axis to the circumferential edge. The wafer comprises first and second axially symmetric regions. The first axially symmetric region extends radially inwardly from the circumferential edge, contains silicon self-interstitials as the predominant intrinsic point defect, and is substantially free of agglomerated interstitial defects. The second axially symmetric region has vacancies as the predominant intrinsic point defect, comprises a surface layer extending from the front side toward the central plane and a bulk layer extending from the surface layer to the central plane, wherein the number density of agglomerated vacancy defects present in the surface layer is less than the concentration in the bulk layer.

US Patent:

6743289, Jun 1, 2004

Filed:

Feb 11, 2002

Appl. No.:

10/073506

Inventors:

Robert J. Falster - London, GB
Martin Jeffrey Binns - St. Charles MO
Alan Wang - OFallon MO

Assignee:

MEMC Electronic Materials, Inc. - St. Peters MO

International Classification:

C30B 3100

US Classification:

117 2, 117 3, 117 13, 117 15

Abstract:

A thermal annealing process for producing a low defect density single crystal silicon wafer. The process includes thermally annealing a wafer having a first axially symmetric region which extends radially inwardly from the circumferential edge, contains silicon self-interstitials as the predominant intrinsic point defect and is substantially free of agglomerated interstitial defects and a second axially symmetric region which has vacancies as the predominant intrinsic point defect. The wafer is subjected to a thermal anneal at a temperature in excess of about 1000Â C. in an atmosphere of hydrogen, argon or a mixture thereof to dissolve agglomerated vacancy defects present in the second axially symmetric region within a layer extending from the front side toward the central plane.

US Patent:

20190259023, Aug 22, 2019

Filed:

Aug 27, 2018

Appl. No.:

16/113281

Inventors:

- Purchase NY, US
Alan L. Wang - Chesterfield MO, US
Jesse E. Owens - New York NY, US

Assignee:

MASTERCARD INTERNATIONAL INCORPORATED - Purchase NY

International Classification:

G06Q 20/36
H04L 12/26

Abstract:

A method for measuring activity across a network of digital wallets utilizing application programming interfaces includes: storing, in a processing server, a plurality of wallet profiles, each profile including data related to an electronic wallet that is not hosted in a computing system including the processing server, the wallet profile including a wallet identifier; receiving a registration message submitted via an application programming interface (API) of the processing server, the message including a new wallet identifier; inserting a new wallet profile that includes the new wallet identifier; receiving transaction notifications via the API, each transaction notification being related to a processed payment transaction and including an associated wallet identifier related to the electronic wallet used to fund the respective processed payment transaction; measuring wallet activity based on a number of unique associated wallet identifiers included in the transaction notifications; and reporting the measured wallet activity.

US Patent:

20160260084, Sep 8, 2016

Filed:

Mar 7, 2016

Appl. No.:

15/063212

Inventors:

- Purchase NY, US
Igor Fabyshev - Mountainside NJ, US
Chintan Oza - Passaic NJ, US
Alan Wang - Chesterfield MO, US

International Classification:

G06Q 20/32
G06Q 20/38
G06Q 20/40
G06Q 20/36

Abstract:

Provided are systems and methods for conducting secure remote transactions between mobile devices and merchants.