- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 27/11521 - Electrically programmable read-only memories; Multistep manufacturing processes therefor with floating gate characterised by the memory core region
Patent holdings for IPC class H01L 27/11521
Total number of patents in this class: 908
10-year publication summary
|
74
|
164
|
147
|
194
|
150
|
98
|
85
|
16
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42461 |
138 |
| Micron Technology, Inc. | 26231 |
85 |
| Silicon Storage Technology, Inc. | 692 |
74 |
| Kioxia Corporation | 10285 |
46 |
| Samsung Electronics Co., Ltd. | 145416 |
40 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1771 |
29 |
| STMicroelectronics (Rousset) SAS | 947 |
28 |
| Winbond Electronics Corp. | 1274 |
28 |
| United Microelectronics Corp. | 4252 |
27 |
| SK Hynix Inc. | 11290 |
23 |
| GLOBALFOUNDRIES Singapore Pte. Ltd. | 800 |
21 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1033 |
20 |
| International Business Machines Corporation | 61207 |
19 |
| Sandisk Technologies Inc. | 4790 |
18 |
| Renesas Electronics Corporation | 6026 |
17 |
| Semiconductor Energy Laboratory Co., Ltd. | 11377 |
17 |
| Macronix International Co., Ltd. | 2563 |
16 |
| Sandisk Technologies LLC | 1432 |
13 |
| GLOBALFOUNDRIES U.S. Inc. | 6430 |
13 |
| eMemory Technology Inc. | 387 |
10 |
| Other owners | 226 |