Inventor · disambiguated record
Virendra V. Rana
Also filed as: RANA VIRENDRA · RANA VIRENDRA V · RANA VIRENDRA V S
54 granted patents·25 pending applications·1,709 citations·filing 1977–2017
99Inventor score
Top patents by PatentIndex Score
79 records- 0197US9929054B2Systems and methods for laser splitting and device layer transferSOLEXEL INC·Filed 2015·Granted Mar 27, 2018·9 cites·15 claims
- 0297US6374770B1Apparatus for improving film stability of halogen-doped silicon oxide filmsAPPLIED MATERIALS INC·Filed 2000·Granted Apr 23, 2002·184 cites·24 claims
- 0395US8399331B2Laser processing for high-efficiency thin crystalline silicon solar cell fabricationMOSLEHI MEHRDAD M·Filed 2011·Granted Mar 19, 2013·20 cites·18 claims
- 0495US6190233B1Method and apparatus for improving gap-fill capability using chemical and physical etchbacksAPPLIED MATERIALS INC·Filed 1998·Granted Feb 20, 2001·277 cites·11 claims
- 0595US5990000AMethod and apparatus for improving gap-fill capability using chemical and physical etchbacksAPPLIED MATERIALS INC·Filed 1997·Granted Nov 23, 1999·270 cites·14 claims
- 0693US8637340B2Patterning of silicon oxide layers using pulsed laser ablationMOSLEHI MEHRDAD M·Filed 2011·Granted Jan 28, 2014·18 cites·23 claims
- 0792US7749917B1Dry cleaning of silicon surface for solar cell applicationsAPPLIED MATERIALS INC·Filed 2009·Granted Jul 6, 2010·15 cites·10 claims
- 0892US6191026B1Method for submicron gap filling on a semiconductor substrateAPPLIED MATERIALS INC·Filed 1996·Granted Feb 20, 2001·155 cites·19 claims
- 0992US5328722AMetal chemical vapor deposition process using a shadow ringAPPLIED MATERIALS INC·Filed 1992·Granted Jul 12, 1994·149 cites·25 claims
- 1091US9379258B2Fabrication methods for monolithically isled back contact back junction solar cellsSOLEXEL INC·Filed 2014·Granted Jun 28, 2016·7 cites·9 claims
- 1191US4146379AProcess for densifying polycrystalline articlesUNIV SOUTHERN CALIFORNIA·Filed 1977·Granted Mar 27, 1979·53 cites·21 claims
- 1289US8258426B2Laser material removal methods and apparatusZHANG ZHENHUA·Filed 2009·Granted Sep 4, 2012·11 cites·17 claims
- 1388US7846762B2Integrated emitter formation and passivationAPPLIED MATERIALS INC·Filed 2008·Granted Dec 7, 2010·10 cites·13 claims
- 1485US7858427B2Crystalline silicon solar cells on low purity substrateAPPLIED MATERIALS INC·Filed 2009·Granted Dec 28, 2010·8 cites·24 claims
- 1585US6103601AMethod and apparatus for improving film stability of halogen-doped silicon oxide filmsAPPLIED MATERIALS INC·Filed 1999·Granted Aug 15, 2000·64 cites·27 claims
- 1684US9318644B2Ion implantation and annealing for thin film crystalline solar cellsMOSLEHI MEHRDAD M·Filed 2012·Granted Apr 19, 2016·5 cites·35 claims
- 1784US8420435B2Ion implantation fabrication process for thin-film crystalline silicon solar cellsRANA VIRENDRA V·Filed 2010·Granted Apr 16, 2013·6 cites·22 claims
- 1884US8173473B2Laser system for processing solar wafers in a carrierAQUI DEREK·Filed 2010·Granted May 8, 2012·9 cites·20 claims
- 1983US9214585B2Annealing for damage free laser processing for high efficiency solar cellsSOLEXEL INC·Filed 2014·Granted Dec 15, 2015·4 cites·9 claims
- 2083US9130076B2Trench isolation for monolithically isled solar photovoltaic cells and modulesSOLEXEL INC·Filed 2015·Granted Sep 8, 2015·2 cites·18 claims
- 2183US7569462B2Directional crystallization of silicon sheets using rapid thermal processingAPPLIED MATERIALS INC·Filed 2006·Granted Aug 4, 2009·6 cites·20 claims
- 2283US5292554ADeposition apparatus using a perforated pumping plateAPPLIED MATERIALS INC·Filed 1992·Granted Mar 8, 1994·81 cites·24 claims
- 2382US8569650B2Laser material removal methods and apparatusZHANG ZHENHUA·Filed 2012·Granted Oct 29, 2013·2 cites·15 claims
- 2481US8372753B2Dry cleaning of silicon surface for solar cell applicationsAPPLIED MATERIALS INC·Filed 2010·Granted Feb 12, 2013·4 cites·18 claims
- 2581US8088675B2Methods of making an emitter having a desired dopant profileRANA VIRENDRA V S·Filed 2009·Granted Jan 3, 2012·8 cites·4 claims
- 2679US5827785AMethod for improving film stability of fluorosilicate glass filmsAPPLIED MATERIALS INC·Filed 1996·Granted Oct 27, 1998·56 cites·29 claims
- 2779US5421401ACompound clamp ring for semiconductor wafersAPPLIED MATERIALS INC·Filed 1994·Granted Jun 6, 1995·69 cites·8 claims
- 2874US5141897AMethod of making integrated circuit interconnectionAT & T BELL LAB·Filed 1991·Granted Aug 25, 1992·55 cites·4 claims
- 2972US9842949B2High-efficiency solar photovoltaic cells and modules using thin crystalline semiconductor absorbersMOSLEHI MEHRDAD M·Filed 2012·Granted Dec 12, 2017·2 cites·25 claims
- 3071US9583651B2Systems and methods for enhanced light trapping in solar cellsSOLEXEL INC·Filed 2012·Granted Feb 28, 2017·1 cites·13 claims
- 3170US2015221792A1Self Aligned Contacts for Solar CellsSOLEXEL INC·Filed 2014·Application pending·0 cites
- 3268US9419165B2Laser processing for high-efficiency thin crystalline silicon solar cell fabricationSOLEXEL INC·Filed 2013·Granted Aug 16, 2016·0 cites·19 claims
- 3368US2015162486A1Laser processing for solar cell base and emitter regionsSOLEXEL INC·Filed 2014·Application pending·0 cites
- 3467US9236510B2Patterning of silicon oxide layers using pulsed laser ablationSOLEXEL INC·Filed 2013·Granted Jan 12, 2016·1 cites·18 claims
- 3566US6291028B1Method and apparatus for improving the film quality of plasma enhanced CVD films at the interfaceAPPLIED MATERIALS INC·Filed 2000·Granted Sep 18, 2001·8 cites·4 claims
- 3664US7981778B2Directional solid phase crystallization of thin amorphous silicon for solar cell applicationsAPPLIED MATERIALS INC·Filed 2009·Granted Jul 19, 2011·1 cites·20 claims
- 3763US9508886B2Method for making a crystalline silicon solar cell substrate utilizing flat top laser beamRANA VIRENDRA V·Filed 2011·Granted Nov 29, 2016·1 cites·20 claims
- 3863US6289843B1Method and apparatus for improving the film quality of plasma enhanced CVD films at the interfaceAPPLIED MATERIALS INC·Filed 2000·Granted Sep 18, 2001·7 cites·36 claims
- 3963US5944899AInductively coupled plasma processing chamberAPPLIED MATERIALS INC·Filed 1996·Granted Aug 31, 1999·27 cites·18 claims
- 4062US9196759B2High-efficiency photovoltaic back-contact solar cell structures and manufacturing methodsSOLEXEL INC·Filed 2015·Granted Nov 24, 2015·0 cites·16 claims
- 4162US2015171230A1Fabrication methods for back contact solar cellsSOLEXEL INC·Filed 2014·Application pending·0 cites
- 4261US8283199B2Solar cell patterning and metallizationRANA VIRENDRA V S·Filed 2009·Granted Oct 9, 2012·0 cites·20 claims
- 4361US4282024AApparatus for making polycrystalline articlesUNIV SOUTHERN CALIFORNIA·Filed 1979·Granted Aug 4, 1981·15 cites·15 claims
- 4459US9768343B2Damage free laser patterning of transparent layers for forming doped regions on a solar cell substrateSOLEXEL INC·Filed 2014·Granted Sep 19, 2017·0 cites·12 claims
- 4558US2013213469A1High efficiency solar cell structures and manufacturing methodsSOLEXEL INC·Filed 2013·Application pending·0 cites
- 4658US2014360567A1Back contact solar cells using aluminum-based alloy metallizationSOLEXEL INC·Filed 2013·Application pending·0 cites
- 4756US5227335ATungsten metallizationAT & T BELL LAB·Filed 1990·Granted Jul 13, 1993·30 cites·11 claims
- 4856US2013288425A1End point detection for back contact solar cell laser via drillingSOLEXEL INC·Filed 2013·Application pending·0 cites
- 4956US2014158193A1Structures and methods of formation of contiguous and non-contiguous base regions for high efficiency back-contact solar cellsSOLEXEL INC·Filed 2013·Application pending·0 cites
- 5055US9929288B2Trench isolation for monolithically isled solar photovoltaic cells and modulesSOLEXEL INC·Filed 2015·Granted Mar 27, 2018·0 cites·17 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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