Ionic contaminant cleaning
US11304304B2 · kind B2 · utility
0Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | May 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0783
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Aspects of the present disclosure relate to dispersing graphene oxide in a fluid and washing a first electronic part with cleaning fluid. Aspects of the present disclosure relate to testing cleaning fluid for a concentration of ions, and determining whether the ion concentration is below a threshold. If the ion concentration is below a threshold level, continuing to wash parts with the fluid. If the ion concentration is above a threshold level, replacing the cleaning fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.