- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/28 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups
Patent holdings for IPC class H01L 21/28
Total number of patents in this class: 11674
10-year publication summary
|
1214
|
1025
|
1044
|
1131
|
1085
|
855
|
662
|
556
|
530
|
177
|
| 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. | 41951 |
1944 |
| Samsung Electronics Co., Ltd. | 143555 |
556 |
| International Business Machines Corporation | 60806 |
411 |
| Micron Technology, Inc. | 26169 |
410 |
| Intel Corporation | 46664 |
329 |
| United Microelectronics Corp. | 4202 |
316 |
| Semiconductor Energy Laboratory Co., Ltd. | 11350 |
277 |
| Kioxia Corporation | 10262 |
267 |
| GLOBALFOUNDRIES U.S. Inc. | 6436 |
257 |
| SK Hynix Inc. | 11176 |
244 |
| Applied Materials, Inc. | 18344 |
230 |
| Sandisk Technologies Inc. | 4822 |
201 |
| Renesas Electronics Corporation | 6063 |
192 |
| Tokyo Electron Limited | 12477 |
186 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1774 |
146 |
| Institute of Microelectronics, Chinese Academy of Sciences | 1370 |
128 |
| Sharp Kabushiki Kaisha | 18830 |
127 |
| Macronix International Co., Ltd. | 2571 |
117 |
| Texas Instruments Incorporated | 19473 |
107 |
| Sumitomo Electric Industries, Ltd. | 15292 |
101 |
| Other owners | 5128 |