Viscous substance discharging method using a viscous substance dispenser and pattern forming method using a viscous substance dispenser
US6280799A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/6715
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A viscous substance dispenser is provided with a container containing a viscous substance having a viscosity in the range of 1,000 to 1,000,000 cps. The container is provided with a circular orifice or a polygonal orifice of a diameter in the range of 50 .mu.m to 1 mm in its lower portion. An electrode is formed in a portion or the entire portion of the container. A meniscus of the viscous substance is made to bulge out from the orifice and a high voltage pulse is applied to the electrode to pull out the viscous substance through the orifice and a portion of the viscous substance pulled out of the orifice is cut and is made to adhere to a medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.