Inventor · San Diego, CA, US

Chando Park

60Patents
13h-index
48Co-inventors
80Inventor score

Filing activity: May 7, 2007 → Aug 8, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8611055B1 Magnetic etch-stop layer for magnetoresistive read heads Physics 165 Active
US8194365B1 Method and system for providing a read sensor having a low magnetostriction free layer Electricity 163 Active
US8559141B1 Spin tunneling magnetic element promoting free layer crystal growth from a barrier layer interface Electricity 156 Active
US8537502B1 Method and system for providing a magnetic transducer having improved shield-to-shield spacing Emerging Cross-Sectional Technologies 150 Active
US8381391B2 Method for providing a magnetic recording transducer Emerging Cross-Sectional Technologies 148 Active
US9379314B2 Hybrid synthetic antiferromagnetic layer for perpendicular magnetic tunnel junction (MTJ) Electricity 63 Active
US9634237B2 Ultrathin perpendicular pinned layer structure for magnetic tunneling junction devices Electricity 45 Active
US10043967B2 Self-compensation of stray field of perpendicular magnetic elements Electricity 36 Active
US9142762B1 Magnetic tunnel junction and method for fabricating a magnetic tunnel junction Electricity 23 Active
US10483457B1 Differential spin orbit torque magnetic random access memory (SOT-MRAM) cell structure and array Electricity 22 Active
US10311930B1 One-time programming (OTP) magneto-resistive random access memory (MRAM) bit cells in a physically unclonable function (PUF) memory in breakdown to a memory state from a previous read operation to provide PUF operations Electricity 21 Active
US9269893B2 Replacement conductive hard mask for multi-step magnetic tunnel junction (MTJ) etch Electricity 17 Active
US10381060B2 High-speed, low power spin-orbit torque (SOT) assisted spin-transfer torque magnetic random access memory (STT-MRAM) bit cell array Electricity 17 Active
US9824735B1 System and method to generate a random number Physics 13 Active
US9620706B2 Magnetic etch stop layer for spin-transfer torque magnetoresistive random access memory magnetic tunnel junction device Electricity 9 Active
US9590010B1 Perpendicular magnetic tunnel junction (pMTJ) devices employing a thin pinned layer stack and providing a transitioning start to a body-centered cubic (BCC) crystalline / amorphous structure below an upper anti-parallel (AP) layer Electricity 8 Active
US8619394B1 Magnetic tunnel junction with barrier cooling for magnetic read head Emerging Cross-Sectional Technologies 8 Active
US8958180B1 Capping materials for magnetic read head sensor Physics 8 Active
US9870811B2 Physically unclonable function based on comparison of MTJ resistances Physics 7 Active
US10134808B2 Magnetic tunnel junction (MTJ) devices with heterogeneous free layer structure, particularly suited for spin-torque-transfer (STT) magnetic random access memory (MRAM) (STT MRAM) Electricity 6 Active
US9318133B2 Recessed antiferromagnetic design with antiparallel pinned stitch layers for improved pinning field Emerging Cross-Sectional Technologies 6 Active
US8427791B2 Magnetic tunnel junction having a magnetic insertion layer and methods of producing the same Emerging Cross-Sectional Technologies 5 Active
US9064507B1 Magnetic etch-stop layer for magnetoresistive read heads Physics 5 Active
US9614147B2 Hybrid synthetic antiferromagnetic layer for perpendicular magnetic tunnel junction (MTJ) Electricity 4 Active
US8755152B1 Method and system for providing an improved sensor stack for a recording head Emerging Cross-Sectional Technologies 4 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.