Semiconductor device and fabrication method thereof
US-12159906-B2 · Dec 3, 2024 · 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 | H01L29/205 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 3,434 |
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 | 283 |
| 2016 | 444 |
| 2017 | 459 |
| 2018 | 384 |
| 2019 | 385 |
| 2020 | 368 |
| 2021 | 287 |
| 2022 | 292 |
| 2023 | 245 |
| 2024 | 230 |
| 2025 | 57 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High electron mobility transistors
US-2024088242-A1 · Mar 14, 2024 · US
Method for controlling height of a fin structure
US-2015380258-A1 · Dec 31, 2015 · US
Active photonic device having a darlington configuration
US-2015372181-A1 · Dec 24, 2015 · US
High-quality gan high-voltage hfets on silicon
US-2015364552-A1 · Dec 17, 2015 · US
Semiconductor heterojunction device
US-2015357456-A1 · Dec 10, 2015 · US
Semiconductor Device and Method
US-2015333166-A1 · Nov 19, 2015 · US
Varactor diode with heterostructure
US-2015333192-A1 · Nov 19, 2015 · US
Ferromagnet-free spin transistor and method for operating the same
US-2015333123-A1 · Nov 19, 2015 · US
Method for fabricating enhancement mode transistor
US-2015325678-A1 · Nov 12, 2015 · US
Iii-v transistor and method for manufacturing same
US-2015325689-A1 · Nov 12, 2015 · US
Semiconductor apparatus
US-9184241-B2 · Nov 10, 2015 · US
Enhancement mode iii-nitride device and method for manufacturing thereof
US-2015318374-A1 · Nov 5, 2015 · US
Current aperture diode and method of fabricating the same
US-2015318373-A1 · Nov 5, 2015 · US
Method of manufacturing a semiconductor device
US-2015287806-A1 · Oct 8, 2015 · US
Compound semiconductor device having gallium nitride gate structures
US-2015270371-A1 · Sep 24, 2015 · US
Semiconductor device
US-2015263103-A1 · Sep 17, 2015 · US
Method for growing epitaxies of a chemical compound semiconductor
US-2015262810-A1 · Sep 17, 2015 · US
Device isolation using preferential oxidation of the bulk substrate
US-2015263102-A1 · Sep 17, 2015 · US
Semiconductor device
US-2015263090-A1 · Sep 17, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L29/205?
- CPC H01L29/205 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L29/205 (Electricity)?
- Our database includes 3,434 publications tagged with this CPC code.
- Is patent activity under CPC H01L29/205 growing?
- Publication counts under this code: 230 in 2024 vs 57 in 2025 (latest complete years).