C30B 31/185
Pattern diffusion
Official title: {Pattern diffusion, e.g. by using masks}
C30B31/185 (Pattern diffusion) appears on 5 US grants and 9 published applications in this corpus.
Search patents in C30B- Granted patents
- 5
- Published applications
- 9
- Assignees
- 7
- Inventors
- 27
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing substrate for solar cell and substrate for solar cell9 Sep 2025US 12,414,401 B2Shin-Etsu Chemical Co., Ltd.
- Method for manufacturing substrate for solar cell and substrate for solar cell25 Feb 2025US 12,237,435 B2Shin-Etsu Chemical Co., Ltd.
- Method for manufacturing substrate for solar cell and substrate for solar cell13 Feb 2024US 11,901,475 B2Shin-Etsu Chemical Co., Ltd.
- Semiconductor device manufacturing method and semiconductor device25 Jul 2017US 9,716,006 B2Mitsubishi Electric Corporation
- Method of producing semiconductor device14 Aug 1984US 4,465,529 AMitsubishi Denki Kabushiki Kaisha
- Method of manufacturing nitrogen-doped silicon substrate25 Jun 2026US 2026/0182273 A1Samsung Electronics Co., Ltd.
- Methods for selectively depositing a boron doped silicon germanium layer on a surface of a substrate5 Feb 2026US 2026/0035835 A1ASM IP Holding B. V.
- Solar cell and preparation method therefor and application thereof17 Apr 2025US 2025/0126923 A1Tongwei Solar (Chengdu) Co., Ltd.
- Method for manufacturing substrate for solar cell and substrate for solar cell25 Apr 2024US 2024/0136464 A1Shin-Etsu Chemical Co., Ltd.
- Method for manufacturing substrate for solar cell and substrate for solar cell7 May 2020US 2020/0144441 A1Shin-Etsu Chemical Co., Ltd.
Most cited
By later US patents