Array substrate and method for manufacturing the same
US-2015380445-A1 · Dec 31, 2015 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01L21/02554 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 927 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 102 |
| 2016 | 124 |
| 2017 | 147 |
| 2018 | 118 |
| 2019 | 96 |
| 2020 | 87 |
| 2021 | 72 |
| 2022 | 53 |
| 2023 | 42 |
| 2024 | 56 |
| 2025 | 25 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal oxide tft stability improvement
US-2015380561-A1 · Dec 31, 2015 · US
Semiconductor device
US-9214520-B2 · Dec 15, 2015 · US
ZNSNO3/ZNO nanowire having core-shell structure, method of forming ZNSNO3/ZNO nanowire and nanogenerator including ZNSNO3/ZNO nanowire, and method of forming ZNSNO3 nanowire and nanogenerator including ZNSNO3 nanowire
US-9214343-B2 · Dec 15, 2015 · US
Method of manufacturing field-effect transistor, field-effect display device and electromagnetic wave detector
US-9214562-B2 · Dec 15, 2015 · US
Apparatus and method of forming an indium gallium zinc oxide layer
US-9214340-B2 · Dec 15, 2015 · US
Semiconductor device and method for manufacturing semiconductor device
US-9214565-B2 · Dec 15, 2015 · US
Thin film transistor, method for manufacturing the same, and semiconductor device
US-9209283-B2 · Dec 8, 2015 · US
Semiconductor device and method for manufacturing the same
US-9209256-B2 · Dec 8, 2015 · US
Thin film semiconductor device and manufacturing method therefor
US-9202928-B2 · Dec 1, 2015 · US
Semiconductor device and manufacturing method thereof
US-9190528-B2 · Nov 17, 2015 · US
Method for manufacturing compound semiconductor sensitive film based on displacement reaction-thermal oxidation method
US-2015325437-A1 · Nov 12, 2015 · US
Interconnect structure and sputtering target
US-9184298-B2 · Nov 10, 2015 · US
Systems and methods for forming semiconductor devices
US-9177791-B2 · Nov 3, 2015 · US
Semiconductor device and method for manufacturing the same
US-9177855-B2 · Nov 3, 2015 · US
Oxide for semiconductor layer of thin-film transistor, sputtering target, and thin-film transistor
US-9178073-B2 · Nov 3, 2015 · US
Sputtering target, method for forming amorphous oxide thin film using the same, and method for manufacturing thin film transistor
US-9136338-B2 · Sep 15, 2015 · US
Amorphous oxide and field effect transistor
US-9130049-B2 · Sep 8, 2015 · US
Method to etch non-volatile metal materials
US-9130158-B1 · Sep 8, 2015 · US
Display device including transistor and manufacturing method thereof
US-9130046-B2 · Sep 8, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L21/02554?
- CPC H01L21/02554 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L21/02554 (Electricity)?
- Our database includes 927 publications tagged with this CPC code.
- Is patent activity under CPC H01L21/02554 growing?
- Publication counts under this code: 56 in 2024 vs 25 in 2025 (latest complete years).