- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/3215 - Doping the layers
Patent holdings for IPC class H01L 21/3215
Total number of patents in this class: 283
10-year publication summary
|
25
|
31
|
42
|
44
|
45
|
21
|
37
|
15
|
16
|
9
|
| 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. | 43064 |
75 |
| Micron Technology, Inc. | 26138 |
14 |
| Samsung Electronics Co., Ltd. | 147131 |
13 |
| International Business Machines Corporation | 61353 |
13 |
| Texas Instruments Incorporated | 19450 |
12 |
| SK Hynix Inc. | 11428 |
12 |
| Applied Materials, Inc. | 18792 |
10 |
| GLOBALFOUNDRIES U.S. Inc. | 6427 |
8 |
| Adeia Semiconductor Solutions LLC | 291 |
7 |
| Changxin Memory Technologies, Inc. | 4927 |
6 |
| Kioxia Corporation | 10334 |
6 |
| Daedalus Prime LLC | 105 |
6 |
| Intel Corporation | 47062 |
5 |
| Tokyo Electron Limited | 12825 |
5 |
| United Microelectronics Corp. | 4244 |
5 |
| Winbond Electronics Corp. | 1282 |
5 |
| Lodestar Licensing Group LLC | 1034 |
5 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1033 |
4 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1765 |
4 |
| Varian Semiconductor Equipment Associates, Inc. | 1231 |
3 |
| Other owners | 65 |