C30B 31/02
Diffusion or doping processes for single crystals or homogeneous polycrystalline material with
Official title: by contacting with diffusion materials in the solid state
C30B31/02 (Diffusion or doping processes for single crystals or homogeneous polycrystalline material with) appears on 64 US grants and 33 published applications in this corpus.
Search patents in C30B- Granted patents
- 64
- Published applications
- 33
- Assignees
- 39
- Inventors
- 120
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 3 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Colored watch glass30 Sep 2025US 12,428,335 B2Rolex SA
- Carbon-doped silicon single crystal wafer and method for manufacturing the same19 Sep 2023US 11,761,118 B2Shin-Etsu Handotai Co., Ltd.
- Production of rounded salt particles3 Aug 2021US 11,078,085 B2Allergan, Inc.
- Lithium tantalate single crystal substrate, bonded substrate, manufacturing method of the bonded substrate, and surface acoustic wave device using the bonded substrate1 Jun 2021US 11,021,810 B2Shin-Etsu Chemical Co., Ltd.
- Methods for creating a semiconductor wafer having profiled doping and wafers and solar cell components having a profiled field, such as drift and back surface8 Sep 2020US 10,770,613 B21366 Technologies, Inc.
- Colored watch glass8 Jan 2026US 2026/0008718 A1Rolex SA
- Carbon-doped silicon single crystal wafer and method for manufacturing the same18 Aug 2022US 2022/0259767 A1Shin-Etsu Handotai Co., Ltd.
- Method for the preparation of gallium oxide/copper gallium oxide heterojunction1 Oct 2020US 2020/0312659 A1Dalian University of Technology
- Colored watch glass20 Aug 2020US 2020/0262740 A1Rolex SA
- Methods for creating a semiconductor wafer having profiled doping and wafers and solar cell components having a profiled field, such as drift and back surface26 Dec 2019US 2019/0393375 A11366 Technologies, Inc.
Most cited
By later US patents
- Dopant predeposition from high pressure plasma source48US 4,382,099 AMotorola, Inc. · 1983
- Mid-IR instrument for analyzing a gaseous sample and method for using the same44US 7,606,274 B2The UAB Research Foundation · 2009
- Fabrication of optical waveguides by indiffusion of metals33US 4,284,663 ABell Telephone Laboratories, Incorporated · 1981
- Method of selectively diffusing aluminium into a silicon semiconductor substrate23US 4,290,830 AHitachi, Ltd. · 1981
- Apparatus for diffusion into semiconductor wafers19US 4,129,090 AHitachi, Ltd. · 1978