# [4-layer] OSHPARK Constraints ayg8
## Description
Use this template if you're planning to get your board manufactured in OSHPARK. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules
OSHpark 4-layer stackup specs:
Top overlay or silkscreen: 1 mil thick
Top solder mask or solder resist: 1 mil thick
Top copper: 1.7 mil thick on 1 oz copper
Dielectric: 7.96 mil thick FR408HG 2113
Mid layer 1: 0.68 mil thick on 0.5 oz copper
Dielectric core: 39 mil thick FR408HR
Mid layer 2: 0.68 mil thick on 0.5 oz copper
Dielectric: 7.96 mil thick FR408HG 2113
Bottom copper: 1.7 mil thick on 1 oz copper
Bottom solder mask or solder resist: 1 mil thick
Bottom overlay or silkscreen: 1 mil thick
## Project Details
- **Owner:** vitacore
- **Created:** 6/26/2024
- **Last Updated:** 6/27/2024
- **Visibility:** Public
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vitacore/4-layer-oshpark-constraints-ayg8~of](https://www.flux.ai/vitacore/4-layer-oshpark-constraints-ayg8~of).*
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*Generated from [https://www.flux.ai/vitacore/4-layer-oshpark-constraints-ayg8~of](https://www.flux.ai/vitacore/4-layer-oshpark-constraints-ayg8~of)*