Method for preparing and using a screen printing stencil having raised edges
US5359928A · kind A · utility
41Cited by
12References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/1225
- 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 has raised edges surrounding orifices. The raised edges are placed against a surface of a substrate to be printed in use of the stencil. The screen printing stencil can be used for printing substrates in the electronic substrate fabrication and electronic assembly industries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.