Rockwell Automation Technologies Incorporated

Brian J McMullen

David Alan Vasko

Sujeet Chand

Daniel Baliey Seger

Alex Laurence Nicoll

David A Snyder

John B Dart

Timothy Patrick Boppre

Dawei Sun

Paul G Kucharski

Nathan Stoddard

Kevin E Colloton

Charles G Bowen

Peter Kellerman

Parthiv Daggolu

Alexander Martinez

Alison Greenlee

Timothy F Roback

Jesse S Appel

Saeed Pirooz

Brandon Williard

David Morrell

Daniel B Seger

Timothy P Boppre

A ribbon is formed such that the ribbon floats on a melt using a cold initializer facing an exposed surface of the melt. The ribbon is single crystal silicon. The ribbon is pulled from the silicon melt at a low angle off the melt surface. The ribbon is formed at a same rate as the pulling. The ribbon is separated from the melt at a wall of the crucible where a stable meniscus forms. The ribbon has a thickness between a first surface and an opposite second surface from 50 μm to 5 mm. The ribbon includes a first region extending a first depth from the first surface. The first region has a reduced oxygen concentration relative to a bulk of the ribbon.

Producing a ribbon or wafer with regions of low oxygen concentration

An industrial control system hardened against malicious activity monitors highly dynamic control data to develop a dynamic thumbprint that can be evaluated to detect deviations from normal behavior of a type that suggest tampering or other attacks. Evaluation of the dynamic thumbprint may employ a set of ranges defining normal operation and reflecting known patterns of interrelationship between dynamic variables.

Security system for industrial control infrastructure using dynamic signatures

An industrial controller resistant to malicious attacks may provide a graduated response employing the elements of the control system to reduce access to the control system, log data, and announce intrusion based on a dynamically evolving assessment of the severity of any detected security issues.

Active response security system for industrial control infrastructure

A template for implementing a control system with security features provides a generic control program and device programs for distribution to one or more industrial controllers and associated control devices together with matching security programs for distribution to the control devices, the security programs providing for the generation of security thumbprints indicating the state of the control devices. The template may also be associated with a security-monitoring program that can receive and process the security thumbprints.

Rapid configuration security system for industrial control infrastructure

An industrial control system providing security against tampering or modification generates periodic state thumbprints defining a state of control elements that may be forwarded to a security or safety appliance for comparison to a benchmark thumbprint indicating no tampering. The transmitted state thumbprint may capture not only programs but also configuration and environmental states of the control element.

Security system for industrial control infrastructure

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Cedarburg, WI, United States of America

Brian J McMullen