- 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: 186
10-year publication summary
|
28
|
25
|
15
|
16
|
14
|
12
|
6
|
12
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16113 |
30 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47419 |
23 |
| Samsung Electronics Co., Ltd. | 154120 |
8 |
| Sumco Corporation | 1113 |
7 |
| Resonac Corporation | 3230 |
7 |
| Intel Corporation | 46681 |
6 |
| United Microelectronics Corp. | 4452 |
6 |
| Infineon Technologies AG | 8383 |
4 |
| NGK Insulators, Ltd. | 5206 |
4 |
| Toshiba Corporation | 12695 |
3 |
| Denso Corporation | 25232 |
3 |
| Mitsubishi Electric Corporation | 47625 |
3 |
| GLOBALFOUNDRIES U.S. Inc. | 6392 |
3 |
| Advanced Micro Devices, Inc. | 6010 |
2 |
| Sumitomo Chemical Company, Limited | 9055 |
2 |
| Rohm Co., Ltd. | 6757 |
2 |
| Fuji Electric Co., Ltd. | 5394 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
2 |
| Boe Technology Group Co., Ltd. | 43067 |
2 |
| Globalwafers Co., Ltd. | 723 |
2 |
| Other owners | 65 |