System of dispensing material on a substrate with a solenoid valve of a pneumatically-driven dispensing unit
US10016780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Feb 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0126
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system for dispensing material on a substrate includes a dispensing unit having a dispensing piston. The dispensing piston is pneumatically driven from a first lower position to a second upper position. The system further includes a solenoid valve coupled to the dispensing unit, with the solenoid valve being configured to control air flow to and from the dispensing piston. The solenoid valve includes a solenoid coil and an amplifier connected to the solenoid coil. The system further includes a controller coupled to the amplifier, with the controller being configured to generate a command signal to the amplifier to control current in the solenoid coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.