Inventor · disambiguated record
Andrew J. Walker
Also filed as: WALKER ANDREW · WALKER ANDREW J · WALKER ANDREW JAN
105 granted patents·22 pending applications·5,808 citations·filing 1981–2025
99Inventor score
Files withSPIN MEMORY INC21WALKER ANDREW J16SANDISK 3D LLC15MATRIX SEMICONDUCTOR INC14INTEGRATED SILICON SOLUTION CAYMAN INC11
Top patents by PatentIndex Score
127 records- 0199US7915164B2Method for forming doped polysilicon via connecting polysilicon layersSANDISK 3D LLC·Filed 2010·Granted Mar 29, 2011·251 cites·7 claims
- 0299US6888750B2Nonvolatile memory on SOI and compound semiconductor substrates and method of fabricationMATRIX SEMICONDUCTOR INC·Filed 2001·Granted May 3, 2005·497 cites·20 claims
- 0398US7612411B2Dual-gate device and methodWALKER ANDREW J·Filed 2005·Granted Nov 3, 2009·251 cites·33 claims
- 0498US7566974B2Doped polysilicon via connecting polysilicon layersSANDISK 3D LLC·Filed 2004·Granted Jul 28, 2009·190 cites·17 claims
- 0598US7233522B2NAND memory array incorporating capacitance boosting of channel regions in unselected memory cells and method for operation of sameSANDISK 3D LLC·Filed 2003·Granted Jun 19, 2007·320 cites·44 claims
- 0698US7221588B2Memory array incorporating memory cells arranged in NAND stringsSANDISK 3D LLC·Filed 2003·Granted May 22, 2007·259 cites·15 claims
- 0798US7129538B2Dense arrays and charge storage devicesSANDISK 3D LLC·Filed 2004·Granted Oct 31, 2006·203 cites·20 claims
- 0898US7023739B2NAND memory array incorporating multiple write pulse programming of individual memory cells and method for operation of sameMATRIX SEMICONDUCTOR INC·Filed 2003·Granted Apr 4, 2006·299 cites·88 claims
- 0998US7005350B2Method for fabricating programmable memory array structures incorporating series-connected transistor stringsMATRIX SEMICONDUCTOR INC·Filed 2002·Granted Feb 28, 2006·453 cites·99 claims
- 1098US6881994B2Monolithic three dimensional array of charge storage devices containing a planarized surfaceMATRIX SEMICONDUCTOR INC·Filed 2001·Granted Apr 19, 2005·515 cites·52 claims
- 1198US6841813B2TFT mask ROM and method for making sameMATRIX SEMICONDUCTOR INC·Filed 2001·Granted Jan 11, 2005·354 cites·24 claims
- 1298US6815781B2Inverted staggered thin film transistor with salicided source/drain structures and method of making sameMATRIX SEMICONDUCTOR INC·Filed 2002·Granted Nov 9, 2004·309 cites·40 claims
- 1397US9743224B2Systems and methods for processing and transmitting sensor dataDEXCOM INC·Filed 2015·Granted Aug 22, 2017·67 cites·15 claims
- 1497US7224013B2Junction diode comprising varying semiconductor compositionsSANDISK 3D LLC·Filed 2004·Granted May 29, 2007·122 cites·88 claims
- 1597US6992349B2Rail stack array of charge storage devices and method of making sameMATRIX SEMICONDUCTOR INC·Filed 2004·Granted Jan 31, 2006·117 cites·59 claims
- 1697US6593624B2Thin film transistors with vertically offset drain regionsMATRIX SEMICONDUCTOR INC·Filed 2001·Granted Jul 15, 2003·150 cites·71 claims
- 1796US7525137B2TFT mask ROM and method for making sameSANDISK CORP·Filed 2006·Granted Apr 28, 2009·42 cites·11 claims
- 1896US7433233B2NAND memory array incorporating capacitance boosting of channel regions in unselected memory cells and method for operation of sameSANDISK 3D LLC·Filed 2007·Granted Oct 7, 2008·54 cites·24 claims
- 1996US6737675B2High density 3D rail stack arraysMATRIX SEMICONDUCTOR INC·Filed 2002·Granted May 18, 2004·142 cites·51 claims
- 2095US10333063B1Fabrication of a perpendicular magnetic tunnel junction (PMTJ) using block copolymersSPIN MEMORY INC·Filed 2018·Granted Jun 25, 2019·6 cites·20 claims
- 2195US7508714B2Memory array incorporating mirrored NAND strings and non-shared global bit lines within a blockSANDISK 3D LLC·Filed 2007·Granted Mar 24, 2009·30 cites·17 claims
- 2294US12155204B2Method and system for fin-based voltage clampSEMICONDUCTOR COMPONENTS IND LLC·Filed 2023·Granted Nov 26, 2024·2 cites·20 claims
- 2394US9028410B2Systems and methods for processing and transmitting sensor dataSAN VICENTE KENNETH·Filed 2012·Granted May 12, 2015·35 cites·10 claims
- 2494US7838937B1Circuits providing ESD protection to high voltage laterally diffused metal oxide semiconductor (LDMOS) transistorsCYPRESS SEMICONDUCTOR CORP·Filed 2005·Granted Nov 23, 2010·36 cites·17 claims
- 2594US6858899B2Thin film transistor with metal oxide layer and method of making sameMATRIX SEMICONDUCTOR INC·Filed 2002·Granted Feb 22, 2005·84 cites·46 claims
- 2694US6849905B2Semiconductor device with localized charge storage dielectric and method of making sameMATRIX SEMICONDUCTOR INC·Filed 2002·Granted Feb 1, 2005·79 cites·41 claims
- 2793US10355045B1Three dimensional perpendicular magnetic junction with thin-film transistorSPIN MEMORY INC·Filed 2017·Granted Jul 16, 2019·9 cites·21 claims
- 2893US8283727B1Circuit with electrostatic discharge protectionWALKER ANDREW·Filed 2009·Granted Oct 9, 2012·35 cites·19 claims
- 2993US7505321B2Programmable memory array structure incorporating series-connected transistor strings and methods for fabrication and operation of sameSANDISK 3D LLC·Filed 2002·Granted Mar 17, 2009·84 cites·32 claims
- 3093US7250646B2TFT mask ROM and method for making sameSANDISK 3D LLC·Filed 2004·Granted Jul 31, 2007·55 cites·28 claims
- 3193US6897514B2Two mask floating gate EEPROM and method of makingMATRIX SEMICONDUCTOR INC·Filed 2002·Granted May 24, 2005·69 cites·17 claims
- 3292US8844007B2Systems and methods for processing and transmitting sensor dataVICENTE KENNETH SAN·Filed 2012·Granted Sep 23, 2014·73 cites·15 claims
- 3392US7012299B2Storage layer optimization of a nonvolatile memory deviceMATRIX SEMICONDUCTORS INC·Filed 2003·Granted Mar 14, 2006·78 cites·43 claims
- 3491US7659558B1Silicon controlled rectifier electrostatic discharge clamp for a high voltage laterally diffused MOS transistorCYPRESS SEMICONDUCTOR CORP·Filed 2005·Granted Feb 9, 2010·22 cites·20 claims
- 3591US7638836B2Nonvolatile memory with backplateSCHILTRON CORP·Filed 2007·Granted Dec 29, 2009·22 cites·13 claims
- 3690US10937479B1Integration of epitaxially grown channel selector with MRAM deviceSPIN MEMORY INC·Filed 2019·Granted Mar 2, 2021·5 cites·12 claims
- 3790US8129788B1Capacitor triggered silicon controlled rectifierWALKER ANDREW·Filed 2007·Granted Mar 6, 2012·20 cites·5 claims
- 3889US10186551B1Buried tap for a vertical transistor used with a perpendicular magnetic tunnel junction (PMTJ)SPIN TRANSFER TECH INC·Filed 2018·Granted Jan 22, 2019·6 cites·14 claims
- 3989US8278684B1Voltage protection deviceWALKER ANDREW J·Filed 2007·Granted Oct 2, 2012·17 cites·8 claims
- 4088US10957370B1Integration of epitaxially grown channel selector with two terminal resistive switching memory elementSPIN MEMORY INC·Filed 2019·Granted Mar 23, 2021·4 cites·11 claims
- 4188US10658425B2Methods of forming perpendicular magnetic tunnel junction memory cells having vertical channelsSPIN MEMORY INC·Filed 2018·Granted May 19, 2020·5 cites·12 claims
- 4288US9439029B2Systems and methods for processing and transmitting sensor dataDEXCOM INC·Filed 2014·Granted Sep 6, 2016·6 cites·12 claims
- 4388US8143673B1Circuit with electrostatic discharge protectionWALKER ANDREW·Filed 2009·Granted Mar 27, 2012·18 cites·20 claims
- 4487US10468293B2Methods of forming perpendicular magnetic tunnel junction memory cells having vertical channelsSPIN MEMORY INC·Filed 2017·Granted Nov 5, 2019·5 cites·20 claims
- 4587US9002390B2Systems and methods for processing and transmitting sensor dataSAN VICENTE KENNETH·Filed 2012·Granted Apr 7, 2015·7 cites·16 claims
- 4687US8841727B1Circuit with electrostatic discharge protectionWALKER ANDREW·Filed 2012·Granted Sep 23, 2014·9 cites·8 claims
- 4787US8259590B2Systems and methods for scalable and rapid Ethernet fault detectionSHAH HIMANSHU·Filed 2007·Granted Sep 4, 2012·18 cites·18 claims
- 4885US7667241B1Electrostatic discharge protection deviceCYPRESS SEMICONDUCTOR CORP·Filed 2007·Granted Feb 23, 2010·12 cites·19 claims
- 4984US7855862B1Electrostatic discharge (ESD) circuit and method that includes P-channel device in signal pathCYPRESS SEMICONDUCTOR CORP·Filed 2007·Granted Dec 21, 2010·15 cites·5 claims
- 5082US7529017B1Circuit and method for snapdown prevention in voltage controlled MEMS devicesSILICON LIGHT MACHINES CORP·Filed 2006·Granted May 5, 2009·10 cites·20 claims
Showing the top 50 of 127 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →