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Alleppey V Hariharan

from Austin, TX
Age ~90
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Also known as:
Alleppey V Hariaharan, Arvind Hariharan
Phone and address:
3225 Summer Canyon Dr, Austin, TX 78732
(512) 266-5879
Related to:
Amy Davis Duncan, 48Owen F Davis, 36
Connected to:
Ajay K Hariharan, 48Aravind Hariharan, 36Ashok Hariharan, 55Balasubram Hariharan, 91Girish Hariharan, 33Hari A Hariharan, 57Kasturi Hariharasubramanian, 41Nagarajan Hariharan, 53Neetu Hariharan, 34Pallavi Hariharan, 38

Alleppey Hariharan Phones & Addresses

  • 3225 Summer Canyon Dr, Austin, TX 78732 (512) 266-5879
  • Bath, NY
  • 5 Overlook Dr, Nashua, NH 03062 (603) 577-8960
  • Bedford, MA
  • Savona, NY

Work

Company: Semlux technologies Position: Principal

Industries

Semiconductors

Resumes

Resumes

Alleppey Hariharan Photo 1

Principal

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Location:
Austin, TX
Industry:
Semiconductors
Work:
Semlux Technologies
Principal

Business Records

Name / Title
Company / Classification
Phones & Addresses
Alleppey V. Hariharan
President, Principal
SEMLUX TECHNOLOGIES, INC
Business Services
236 Davis Rd, Bedford, MA 01730
3225 Summer Cyn Dr, Austin, TX 78732

Publications

Us Patents

Protective Layer For Quartz Crucibles Used For Silicon Crystallization

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US Patent:
6479108, Nov 12, 2002
Filed:
Aug 31, 2001
Appl. No.:
09/944790
Inventors:
Alleppey V. Hariharan - Nashua NH
Mohan Chandra - Merrimack NH
Michael Costantini - Hudson NH
Yuepeng Wan - Nashua NH
Assignee:
G.T. Equipment Technologies, Inc. - Nashua NH
International Classification:
C23C 410
US Classification:
427453, 427446
Abstract:
A thermodynamically stable, protective coating layer is applied by thermal spray technique to the inner and outer surfaces of a quartz crucible used for mono or polycrystalline silicon crystallization processing, inhibiting fusion between the silicon melt and the vitreous silica of the crucible, contamination of the silicon melt by contaminants released from the crucible by devitrification, and any chemical reaction occurring between the crucible and any supporting graphite structure. A powdered form of a suitable protective coating material compatible with high temperature plasma spray techniques, such as magnesium zirconate, barium zirconate, or stabilized zirconium oxide, is fed into a high temperature and high speed plasma jet directed at the crucible. The powder particles are softened or melted in the jet and deposited on the surfaces of the quartz crucible, and allowed to cool and harden into a protective coating.

Release Coating System For Crucibles

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US Patent:
6491971, Dec 10, 2002
Filed:
Apr 6, 2001
Appl. No.:
09/827540
Inventors:
Michael A Costantini - Hudson NH
Mohan Chandra - Merrimack NH
Keith Matthei - Nashua NH
Alleppey V. Hariharan - Nashua NH
Assignee:
G.T. Equipment Technologies, Inc - Nashua NH
International Classification:
B05D 302
US Classification:
427133, 427226, 427236, 427387, 4273936, 4273977, 427427, 106 3822, 10628711, 10628713
Abstract:
A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.

Making And Connecting Bus Bars On Solar Cells

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US Patent:
6620645, Sep 16, 2003
Filed:
Nov 16, 2001
Appl. No.:
09/993587
Inventors:
Mohan Chandra - Merrimack NH
Yuepeng Wan - Nashua NH
Alleppey V. Hariharan - Nashua NH
Jonathan A. Talbott - Amherst NH
Assignee:
G.T. Equipment Technologies, Inc - Merrimack NH
International Classification:
H01L 2100
US Classification:
438 98, 438610, 136244, 427446
Abstract:
A method for fabricating multi-cell solar devices using thermal spray deposition techniques to spray metal powder directly on solar cells and on the backing upon which solar cells are assembled, to form collection grid lines, bus bars, electrodes and interconnections between solar cells.

Solar Cell Stringing Machine

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US Patent:
6841728, Jan 11, 2005
Filed:
Apr 18, 2002
Appl. No.:
10/125329
Inventors:
Bernard D. Jones - Amherst NH, US
Eric de Rivera - W. Boylston MA, US
Alleppey V. Hariharan - Nashua NH, US
Steven T. Slavsky - Natick MA, US
Thomas S. McGee - Concord NH, US
David W. Lackey - Concord NH, US
Thomas N. Kirchner - Londonderry NH, US
Assignee:
G.T. Equipment Technologies, Inc. - Merrimack NH
International Classification:
B23P 1900
B23P 2100
H01P 1100
H01L 3118
US Classification:
136244, 136256, 136293, 438 80, 438 64, 438 66, 438 98, 29729, 29730, 29711, 29714, 29564, 295641, 295642, 1983461
Abstract:
A machine for the automated assembly of wafers such as solar cells into strings, comprising a control system, a cell loader with wafer inspection station, a cell tab loader, a string assembly station, and a platen with adjacent pairs of individual cell, opposing edge grippers having multiple sets of vertically operable pincer action fingers for holding cells in string alignment during soldering. The string assembly station has a cooperating cell support and tab tail support mechanism providing for a tab tail hand off from one to the other with a platen indexing movements of cell pitch distance. The platen moves from the string assembly station through a soldering station consisting of a preheat, soldering, and cooling zones spaced a cell pitch distance apart. A string unloader moves completed strings through a string inspection station placing strings in a good or bad string holding area.

Dry Conversion Of High Purity Ultrafine Silicon Powder To Densified Pellet Form For Silicon Melting Applications

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US Patent:
7175685, Feb 13, 2007
Filed:
Apr 15, 2003
Appl. No.:
10/413774
Inventors:
Alleppey V Hariharan - Austin TX, US
Mohan Chandra - Merrimack NH, US
Kedar P Gupta - Hollis NH, US
Assignee:
GT Solar Incorporated - Merrimack NH
International Classification:
C22C 28/00
B22F 1/00
US Classification:
75228, 419 66
Abstract:
A bulk silicon material for making silicon ingots, consisting of silicon pellets, and a method for making the pellets from an agglomerate-free source of high purity silicon powder by feeding a controlled amount of silicon powder that is free of intentional additives and binders into a pellet die, and dry compacting the powder at ambient temperature with pressure to produce a pellet that has a density of about 50–75% of the theoretical density of elemental silicon, a weight within a range of about 1. 0 gram to about 3. 0 grams and preferably of about 2. 3 grams, a diameter in the range of 10 mm to 20 mm and preferably of about 14 mm, and a height in the range of 5 mm to 15 mm and preferably of about 10 mm.

Metal Grid Lines On Solar Cells Using Plasma Spraying Techniques

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US Patent:
20010035129, Nov 1, 2001
Filed:
Mar 8, 2001
Appl. No.:
09/802072
Inventors:
Mohan Chandra - Merrimack NH, US
Yuepeng Wan - Nashua NH, US
Alleppey Hariharan - Nashua NH, US
Jonathan Talbott - Amherst NH, US
International Classification:
B05D001/08
US Classification:
118/722000, 427/446000
Abstract:
A method and apparatus for the production of solar cells by directly spraying metal powder for both lines and layers on the front and back sides of a silicon wafer using focused plasma spray technique for making contacts on solar cells.

Crucible Coating System

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US Patent:
20020076501, Jun 20, 2002
Filed:
Nov 15, 2001
Appl. No.:
09/998841
Inventors:
Michael Costantini - Hudson NH, US
Mohan Chandra - Merrimack NH, US
Keith Matthei - Hollis NH, US
Alleppey Hariharan - Nashua NH, US
International Classification:
B05D007/22
B05D003/02
B05D001/02
US Classification:
427/421000, 427/233000, 427/236000, 427/376200
Abstract:
A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, such as in the directional solidification of polycrystalline silicon into ingots, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible at about room temperature, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.

Dielectric Barrier Discharge Process For Depositing Silicon Nitride Film On Substrates

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US Patent:
20030104141, Jun 5, 2003
Filed:
Aug 27, 2002
Appl. No.:
10/229309
Inventors:
Carmela Amato-Wierda - Durham NH, US
Mohan Chandra - Merrimack NH, US
Keith Matthei - Hollis NH, US
Alleppey Hariharan - Nashua NH, US
International Classification:
C23C016/00
B05D005/12
US Classification:
427/580000, 118/72300E, 118/718000, 427/058000
Abstract:
In one embodiment, the present invention is a method of coating at least one wafer with silicon nitride. The first step in the method is assembling at least one electrode set, wherein each electrode set includes at least one dielectric barrier between a top electrode and a bottom electrode. The second step is flowing at least one purge gas and at least one reactant at least partially between the electrodes, of at least one electrode set, substantially at atmospheric pressure. The next step in the inventive method is placing a wafer between the electrodes of at least one electrode set, wherein the wafer is substantially encompassed by the flowing gas. The last step in this embodiment of the inventive method is supplying AC power to at least one electrode set thereby causing a dielectric barrier discharge.
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Alleppey V Hariharan from Austin, TX, age ~90 Get Report