• All sections
• H - Electricity
• H01L - Semiconductor devices not covered by class
• H01L 27/1158 - Electrically programmable read-only memories; Multistep manufacturing processes therefor with charge-trapping gate insulators, e.g. MNOS or NROM characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels

Patent holdings for IPC class H01L 27/1158

Total number of patents in this class: 70

10-year publication summary

Principal owners for this class