- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/3213 - Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
Patent holdings for IPC class H01L 21/3213
Total number of patents in this class: 5821
10-year publication summary
|
508
|
586
|
699
|
666
|
469
|
428
|
377
|
350
|
325
|
95
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47734 |
1085 |
| Tokyo Electron Limited | 13617 |
470 |
| Applied Materials, Inc. | 20145 |
357 |
| Samsung Electronics Co., Ltd. | 155224 |
297 |
| Lam Research Corporation | 5560 |
223 |
| International Business Machines Corporation | 62325 |
218 |
| Micron Technology, Inc. | 27384 |
123 |
| GLOBALFOUNDRIES U.S. Inc. | 6397 |
94 |
| Tokyo Electron U.S. Holdings, Inc | 885 |
93 |
| United Microelectronics Corp. | 4463 |
90 |
| Kioxia Corporation | 10727 |
86 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1739 |
77 |
| Texas Instruments Incorporated | 19636 |
71 |
| Boe Technology Group Co., Ltd. | 43343 |
70 |
| SK Hynix Inc. | 12267 |
67 |
| Nanya Technology Corporation | 2870 |
64 |
| Samsung Display Co., Ltd. | 38092 |
57 |
| ASM IP Holding B.V. | 2319 |
54 |
| Changxin Memory Technologies, Inc. | 4926 |
47 |
| Adeia Semiconductor Solutions LLC | 761 |
47 |
| Other owners | 2131 |