- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 29/34 - Semiconductor bodies having polished or roughened surface the imperfections being on the surface
Patent holdings for IPC class H01L 29/34
Total number of patents in this class: 183
10-year publication summary
|
28
|
25
|
15
|
16
|
14
|
12
|
5
|
12
|
7
|
2
|
| 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. | 49324 |
23 |
| Mitsumi Electric Co., Ltd. | 1302 |
15 |
| Sumitomo Electric Industries, Ltd. | 16437 |
14 |
| Samsung Electronics Co., Ltd. | 159473 |
8 |
| Sumco Corporation | 1108 |
7 |
| Resonac Corporation | 3761 |
7 |
| Intel Corporation | 46327 |
6 |
| United Microelectronics Corp. | 4534 |
6 |
| Infineon Technologies AG | 8427 |
4 |
| Toshiba Corporation | 12727 |
3 |
| Denso Corporation | 25820 |
3 |
| Mitsubishi Electric Corporation | 48460 |
3 |
| NGK Insulators, Ltd. | 5168 |
3 |
| GLOBALFOUNDRIES U.S. Inc. | 6396 |
3 |
| Advanced Micro Devices, Inc. | 6158 |
2 |
| Sumitomo Chemical Company, Limited | 8992 |
2 |
| Rohm Co., Ltd. | 6919 |
2 |
| Fuji Electric Co., Ltd. | 5548 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11137 |
2 |
| Boe Technology Group Co., Ltd. | 44746 |
2 |
| Other owners | 66 |