Method for preparing a screen printing stencil
US5478699A · kind A · utility
46Cited by
10References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1992 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Mar 12, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/136
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To prepare a screen printing stencil, a pattern of resist, having a complementary design to the final screen printing stencil, is applied to a conductive mandrel. A patterned layer is electroformed onto the exposed surface of the mandrel such that the layer corresponds to the exposed orifices of the pattern of resist. The resulting screen printing stencil can have an overgrowth geometry or a straight-wall geometry depending on the type of photoresist employed, and can be used in the electronic substrate fabrication and electronic assembly industries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.