Apparatus and method of dispensing small-scale powders
US7316748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Aug 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1131
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An apparatus and method of dispensing small-scale powders for a variety of applications, including, for example, fabricating a three-dimensional heterogeneous small-scale device, includes using a feed mechanism that causes motion of the powder particles and the steps of depositing fine heterogeneous materials (such as dry powders and biological materials) towards a substrate. The depositing step preferably includes providing a feed mechanism having an input to receive the material, an output, and a source of ultrasonic vibration to impart a torsional force on the material so as to precisely discharge the material from the output. To improve particle flowability, a cooling system is provided to cool the source, generally above a threshold input voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.