Methods To Improve Etch Uniformity Across A Semiconductor Substrate When Etching With A Hydrofluoric Acid (HF) And Nitric Acid (HNO3) Solution
US-2025273471-A1 · Aug 28, 2025 · US
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of insulating materials
of insulating materials · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H10P50/68 |
| Official title | of insulating materials |
| Display label | of insulating materials |
| Total patents | 2 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.