- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 27/11556 - Electrically programmable read-only memories; Multistep manufacturing processes therefor with floating gate 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 the channels comprising vertical portions, e.g. U-shaped channels
Patent holdings for IPC class H01L 27/11556
Total number of patents in this class: 3593
10-year publication summary
34
|
143
|
303
|
315
|
462
|
629
|
699
|
609
|
435
|
61
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Micron Technology, Inc. | 24960 |
654 |
Sandisk Technologies LLC | 5684 |
650 |
Samsung Electronics Co., Ltd. | 131630 |
583 |
Kioxia Corporation | 9847 |
475 |
SK Hynix Inc. | 11030 |
326 |
Yangtze Memory Technologies Co., Ltd. | 1940 |
274 |
Macronix International Co., Ltd. | 2562 |
73 |
Lodestar Licensing Group LLC | 583 |
64 |
Applied Materials, Inc. | 16587 |
61 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
35 |
Tokyo Electron Limited | 11599 |
31 |
Intel NDTM US LLC | 373 |
30 |
Semiconductor Energy Laboratory Co., Ltd. | 10902 |
29 |
Lam Research Corporation | 4775 |
26 |
Toshiba Memory Corporation | 255 |
21 |
Intel Corporation | 45621 |
16 |
International Business Machines Corporation | 60644 |
11 |
ASM IP Holding B.V. | 1715 |
11 |
Soulbrain Co., Ltd. | 196 |
11 |
Institute of Microelectronics, Chinese Academy of Sciences | 1290 |
10 |
Other owners | 202 |