Corning Incorporated

Michael Yoshiya Nishimoto

Gautam Narendra Kudva

Tomohiro Aburada

Steven Roy Burdette

Chris Scott Kogge

Masumi Kihata

Anping Liu

Anatoli Anatolyevich Abramov

William Anthony Whedon

Jae Hyun Yu

Chester Hann Huei Chang

Anmol Agrawal

Jeffrey Robert Amadon

Gary Edward Merz

Yawei Sun

Naiyue Zhou

William Edward Lock

Michael John Moore

Eric Lee Miller

Douglas Edward Brackley

Keith Leonard House

Benedict Osobomen Egboiyi

David John Ulrich

Chunhe Zhang

James Paul Peris

William Brashear Mattingly, Iii

Sarko Cherekdjian

Rui Zhang

Matthew Daniel Trosa

Prakash Chandra Panda

Toshihiko Ono

Gary Graham Squier

Trevor Edward Wilantewicz

George Davis Treichler

Ian David Tracy

Patrick Jean Pierre Herve

Adam Charles Berkey

Chester Hann Chang

Paul Gregory Chalk

Terrence Richard Horsfall

Vinay Patel

Gautam Nerendra Kudva

A control apparatus for controlling a thickness of a substrate, such as a glass ribbon. The control apparatus comprises a laser assembly and a shielding assembly. The laser assembly generates an elongated laser beam traveling in a propagation direction along an optical path. The shielding assembly comprises at least one shield selectively disposed in the optical path. The shield is configured to decrease an optical intensity of a region of the elongated laser beam. The shielding assembly is configured to change an intensity profile of the elongated laser beam from an initial intensity profile to a targeted intensity profile. A desired targeted intensity profile can be dictated by an arrangement of the shield(s) relative to the optical path, and can be selected to affect a temperature change at portions of the substrate determined to benefit from a reduction in thickness.

Apparatus and method for controlling substrate thickness

Provided herein are ion-implanted glass based articles with improved flaw suppression properties. The ion-implanted glass based articles generally have a final indent fracture threshold (IFT) load of at least 650 grams, and/or a scratch threshold force of at least 10 N, which represents at least 1.25-fold enhancement compared to the glass based article prior to ion-implantation. Factors affecting the efficacy of the ion implantation process can include the IFT load of the starting glass or glass ceramic substrate (native IFT load), ion type, ion dose, implant energy, beam current, and glass temperature.

Thin glass based article with high resistance to contact damage

A method of continuously processing glass ribbon having a thickness &#x2264;0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.

Continuous processing of flexible glass ribbon

Methods for producing a glass ribbon include the step of drawing a glass ribbon from a quantity of molten glass and detecting an instability in the glass ribbon. In response to the detected instability, the method can further include the step of automatically adjusting an operating variable for each of a plurality of stabilizing elements simultaneously with a controller to at least partially counter the detected instability.

Methods for producing a glass ribbon

A glass manufacturing apparatus comprises a forming device configured to produce a glass ribbon and a control device configured to independently operate a first pull roll apparatus, a second pull roll apparatus, and a third pull roll apparatus such that at least one of a first upstream pair of draw rolls rotates with a substantially constant torque, at least one of a first midstream pair of draw rolls rotates with a substantially constant torque, and at least one of a first downstream pair of draw rolls rotates with a substantially constant angular velocity. In further examples, methods of manufacturing a glass ribbon are provided.

Glass manufacturing apparatus and method for manufacturing glass sheet

A glass manufacturing apparatus is described herein that comprises a forming device configured to produce a glass ribbon and a pull roll device which draws the glass ribbon downward from the forming device. The pull roll device has a first roll apparatus, a second roll apparatus, and a third roll apparatus. The pull roll device is configured to at least independently operate the first roll apparatus and the second roll apparatus such that at least one of a first upstream pair of draw rolls rotates with a substantially constant torque and at least one of a first downstream pair of draw rolls rotates with a substantially constant angular velocity. In further examples, methods of manufacturing a glass ribbon are provided.

Glass manufacturing apparatus and methods for manufacturing a glass ribbon

Methods and apparatuses for managing pulling forces applied to a glass ribbon in a draw apparatus are disclosed. The method includes applying a front-side and a rear-side drive torque to a glass. The method further includes calculating automatically with the at least one electronic controller a front-side and a rear-side average pulling force applied to the glass ribbon and corresponding to a first time period of at least one rotation of the front-side or rear-side stub roller, respectively. The front-side average pulling force and the rear-side average pulling force are compared to establish a pulling force differential between the front-side average pulling force and the rear-side average pulling force. One or more of the front-side drive torque or the rear-side drive torque are modified to decrease the pulling force differential between the front-side average pulling force and the rear-side average pulling force.

Apparatuses for manufacturing glass and methods of managing pulling forces applied to glass ribbon

Methods and apparatuses for fabricating continuous glass ribbons are disclosed. The method includes forming the continuous glass ribbon by drawing the continuous glass ribbon from a draw housing in a drawing direction, heating at least one portion of a central region of the continuous glass ribbon at a heating location downstream of the draw housing, sensing a temperature of the continuous glass ribbon at a sensed temperature location downstream of the draw housing, and automatically controlling the heating of the at least one portion of the central region of the continuous glass ribbon based on the sensed temperature to mitigate distortion of the continuous glass ribbon.

Methods and apparatuses for fabricating continuous glass ribbons

Roller pairs and draw apparatus for processing glass ribbons are disclosed. The roller pairs applying force to a glass ribbon moving through the draw apparatus. The roller pairs include a first roller assembly and a second roller assembly positioned along opposite sides of the glass ribbon. A shaft of the second roller assembly is coupled to an actuation system that includes a repositionable support member allowing translation of the shaft of the second roller assembly in a direction transverse to the draw direction of the glass ribbon, a pneumatic actuator controlling a position of the contact wheel of the second roller assembly in the direction transverse to the draw direction of the glass ribbon, and a pneumatic reservoir in fluid communication with the pneumatic actuator delivering fluid at an elevated pressure to the pneumatic actuator.

Roller pairs for processing glass ribbons and draw apparatuses incorporating the same

Methods and apparatus provide for delivering a controlled supply of gas to at least one aero-mechanical device to impart a gas flow to suspend a material sheet; preventing lateral movement of the material sheet in at least one direction when suspended; and imparting a stream of water, from a side of the material sheet opposite the at least one aero-mechanical device, to cut the material sheet when suspended.

Material sheet handling system and processing methods

Methods and apparatus provide for imparting a controlled supply of gas to at least one Bernoulli chuck to provide a balanced draw and repellant gas flow to a material sheet; and at least one of: elevating a temperature of the supply of gas to the at least one Bernoulli chuck such that the gas flow to the material sheet is provided at the elevated temperature providing a stream of gas to an insulator substrate to promote separation of an exfoliation layer from a donor semiconductor wafer, and providing a stream of gas to a junction of the insulator substrate and any support structure to promote separation of the insulator substrate and the supporting structure.

High temperature sheet handling system and methods

An apparatus for stabilizing a sheet material by near-field levitation comprises a heater plate including a heating element and a radiation surface which vibrates when the heater plate receives an acoustic wave. The apparatus further comprises at least one vibration source coupled to the heater plate and operable to transmit the acoustic wave to the heater plate.

Heater apparatus, system, and method for stabilizing a sheet material

A conformable nosing device is described herein which conforms to have a bowed shape that substantially matches a bowed shape of a glass sheet and which engages the glass sheet to help minimize the motion of the glass sheet and to help reduce the stress within the glass sheet while the glass sheet is being scored and separated into individual glass sheets. In addition, the conformable nosing device can include a passive nosing device which can be controlled to further help minimize the motion of the glass sheet while the glass sheet is being scored and separated into individual glass sheets.

Conformable nosing device for reducing motion and stress within a glass sheet while manufacturing the glass sheet

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Horseheads, NY, United States of America

Michael Yoshiya Nishimoto