G01R 31/31728
Optical aspects
Official title: {Optical aspects, e.g. opto-electronics used for testing, optical signal transmission for testing electronic circuits, electro-optic components to be tested in combination with electronic circuits, measuring light emission of digital circuits (probes having electro-optic elements G01R1/071; electro-optic sampling for oscilloscopes G01R13/347; contactless testing of individual semiconductor devices by optical means G01R31/2656)}
G01R31/31728 (Optical aspects) appears on 95 US grants and 101 published applications in this corpus.
Search patents in G01R- Granted patents
- 95
- Published applications
- 101
- Assignees
- 61
- Inventors
- 191
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 4 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 11 |
| 2006 | 6 | 5 |
| 2007 | 5 | 9 |
| 2008 | 6 | 8 |
| 2009 | 7 | 0 |
| 2010 | 3 | 0 |
| 2011 | 2 | 3 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 3 | 9 |
| 2018 | 4 | 3 |
| 2019 | 8 | 11 |
| 2020 | 3 | 8 |
| 2021 | 11 | 4 |
| 2022 | 3 | 10 |
| 2023 | 7 | 2 |
| 2024 | 5 | 6 |
| 2025 | 4 | 2 |
| 2026 | 3 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Photonic waveguide power and phase monitor28 Apr 2026US 12,613,276 B2Imec Vzw
- General digital signal processing waveform machine learning control application10 Mar 2026US 12,571,841 B2Tektronix, Inc.
- Depth detector systems13 Jan 2026US 12,523,679 B2Cascade Corporation
- Enhanced direct current (DC) built-in-self-test (BIST) coverage for optical engines and advanced packaging2 Dec 2025US 12,487,275 B2Cisco Technology, Inc.
- Multi-order optical modulator and modulation method for on-chip optical matrix calculation9 Sep 2025US 12,411,173 B2Sun Yat-Sen University
- Photonic wafer level testing systems, devices, and methods of operation10 Apr 2025US 2025/0116570 A1STMicroelectronics S,r.l.
- Test apparatus, test method, and computer-readable storage medium9 Jan 2025US 2025/0012847 A1Advantest Corporation
- Photonic waveguide power and phase monitor21 Nov 2024US 2024/0385243 A1Imec Vzw
- Multi-order optical modulator and modulation method for on-chip optical matrix calculation24 Oct 2024US 2024/0353487 A1Sun Yat-Sen University
- Enhanced direct current (dc) built-in-self-test (bist) coverage for optical engines and advanced packaging22 Aug 2024US 2024/0280630 A1Cisco Technology, Inc.
Most cited
By later US patents
- Method for IC fault analysis using programmable built-in self test and optical emission82US 6,625,769 B1International Business Machines Corporation · 2003
- Transmitter photonic integrated circuit (TxPIC) chips78US 7,885,492 B2Infinera Corporation · 2011
- Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs55US 7,283,694 B2Infinera Corporation · 2007
- Method of in-wafer testing of monolithic photonic integrated circuits (PICs) formed in a semiconductor wafer48US 6,985,648 B2Infinera Corporation · 2006
- Method and apparatus for providing an antireflection coating on the output facet of a photonic integrated circuit (PIC) chip45US 7,460,742 B2Infinera Corporation · 2008