# 🔎 Design Rules **URL:** https://community.aisler.net/c/knowledge-base/design-rules/41.md [Latest](https://community.aisler.net/latest.md) · [Categories](https://community.aisler.net/categories.md) · [Tags](https://community.aisler.net/tags.md) --- ## [2 Layer 1.6 mm 35 µm HASL Design Rules](https://community.aisler.net/t/2-layer-1-6-mm-35-m-hasl-design-rules/3735)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [February 28, 2024, 6:59pm UTC](https://community.aisler.net/t/2-layer-1-6-mm-35-m-hasl-design-rules/3735 "2024-02-28T18:59:19Z")
2 Layer 1.6mm 35 µm HASL Last Updated: 07/07/2025 Imperial measures are rounded from metric measurements. Design Rule Files Do you want to start right away? We provide design rule files for Eagle, KiCad and DipTrace on… --- ## [4 Layer 35µm ENIG Design Rules](https://community.aisler.net/t/4-layer-35-m-enig-design-rules/3733)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [February 28, 2024, 3:57pm UTC](https://community.aisler.net/t/4-layer-35-m-enig-design-rules/3733 "2024-02-28T15:57:06Z")
4 Layer 35µm ENIG Last Updated: 07/07/2025 Imperial measures are rounded from metric measurements. Valid for 0.8 mm and 1.6 mm PCB thickness Design Rule Files Do you want to start right away? We provide design rule fi… --- ## [2 Layer 1.6mm 35 µm ENIG Design Rules](https://community.aisler.net/t/2-layer-1-6mm-35-m-enig-design-rules/3732)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [February 28, 2024, 3:34pm UTC](https://community.aisler.net/t/2-layer-1-6mm-35-m-enig-design-rules/3732 "2024-02-28T15:34:15Z")
2 Layer 1.6 mm 35 µm ENIG Last Updated: 07/07/2025 Imperial measures are rounded from metric measurements. Design Rule Files Do you want to start right away? We provide design rule files for Eagle, KiCad and DipTrace o… --- ## [About the 🔎 Design Rules category](https://community.aisler.net/t/about-the-design-rules-category/1455)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [October 17, 2022, 4:30pm UTC](https://community.aisler.net/t/about-the-design-rules-category/1455 "2022-10-17T16:30:51Z")
Need to more the detailed specifications that you need to follow, then browse this category. --- ## [4 Layer 70µm HASL Design Rules](https://community.aisler.net/t/4-layer-70-m-hasl-design-rules/5773)
**Author:** [@Manuel-from-AISLER](https://community.aisler.net/u/Manuel-from-AISLER)\ **Replies:** 0\ **Last updated:** [August 19, 2026, 9:44am UTC](https://community.aisler.net/t/4-layer-70-m-hasl-design-rules/5773 "2026-08-19T09:44:43Z")
4 Layer 1.6mm 70µm HASL Last Updated: 19/08/2026 Imperial measures are rounded from metric measurements. Minimum Copper Features Description Capability min. tracewidth out: (175 µm / 7 mil) - in: (12… --- ## [4 Layer 70µm ENIG Design Rules](https://community.aisler.net/t/4-layer-70-m-enig-design-rules/5772)
**Author:** [@Manuel-from-AISLER](https://community.aisler.net/u/Manuel-from-AISLER)\ **Replies:** 0\ **Last updated:** [August 19, 2026, 8:56am UTC](https://community.aisler.net/t/4-layer-70-m-enig-design-rules/5772 "2026-08-19T08:56:38Z")
4 Layer 70µm ENIG Design Rules Last Updated: 19/08/202 Imperial measures are rounded from metric measurements. PCB Dimension We accept PCBs within these dimensions for our prototype service, contact our support if your… --- ## [6L+ Layer 35µm ENIG Design Rules](https://community.aisler.net/t/6l-layer-35-m-enig-design-rules/5467)
**Author:** [@Manuel-from-AISLER](https://community.aisler.net/u/Manuel-from-AISLER)\ **Replies:** 0\ **Last updated:** [December 5, 2025, 12:22pm UTC](https://community.aisler.net/t/6l-layer-35-m-enig-design-rules/5467 "2025-12-05T12:22:24Z")
6L+ Layer 35µm ENIG Last Updated: 05/12/2025 Imperial measures are rounded from metric measurements. Valid for 6, 8 and more layers. Minimum Copper Features Description Capability min. tracewidth 10… --- ## [2 Layer 1.6mm 70µm ENIG Design Rules](https://community.aisler.net/t/2-layer-1-6mm-70-m-enig-design-rules/5465)
**Author:** [@Manuel-from-AISLER](https://community.aisler.net/u/Manuel-from-AISLER)\ **Replies:** 0\ **Last updated:** [December 4, 2025, 2:35pm UTC](https://community.aisler.net/t/2-layer-1-6mm-70-m-enig-design-rules/5465 "2025-12-04T14:35:07Z")
2 Layer 1.6mm 70µm ENIG Last Updated: 04/12/2025 Imperial measures are rounded from metric measurements. Minimum Copper Features Description Capability min. tracewidth 175 µm / 7 mil min. SMD pa… --- ## [2 Layer 1.6mm 70µm HASL Design Rules](https://community.aisler.net/t/2-layer-1-6mm-70-m-hasl-design-rules/5464)
**Author:** [@Manuel-from-AISLER](https://community.aisler.net/u/Manuel-from-AISLER)\ **Replies:** 0\ **Last updated:** [December 4, 2025, 2:12pm UTC](https://community.aisler.net/t/2-layer-1-6mm-70-m-hasl-design-rules/5464 "2025-12-04T14:12:49Z")
2 Layer 1.6mm 70µm HASL Last Updated: 04/12/2025 Imperial measures are rounded from metric measurements. Minimum Copper Features Description Capability min. tracewidth 225 µm / 9 mil min. SMD pa… --- ## [Soldermask Opening Adjustment](https://community.aisler.net/t/soldermask-opening-adjustment/3464)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 18, 2023, 10:35pm UTC](https://community.aisler.net/t/soldermask-opening-adjustment/3464 "2023-12-18T22:35:49Z")
Overview The soldermask needs to be adjusted to compensate for possible misalignments of the soldermask. We use an automated system to detect whether a soldermask opening has already been adjusted or not. Why is it req… --- ## [Component Orientation and Polarity Rules for Assembly](https://community.aisler.net/t/component-orientation-and-polarity-rules-for-assembly/45)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [August 10, 2023, 10:00pm UTC](https://community.aisler.net/t/component-orientation-and-polarity-rules-for-assembly/45 "2023-08-10T22:00:00Z")
Polarity Detection for Assembly This article explains how we interpret and display part polarities and what you can do to comply with our polarity rules. Important: This article is mainly relevant if you’re planning to… --- ## [AISLER Production Panel Specification](https://community.aisler.net/t/aisler-production-panel-specification/2779)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [July 14, 2023, 1:58pm UTC](https://community.aisler.net/t/aisler-production-panel-specification/2779 "2023-07-14T13:58:10Z")
Panel For Amazing Assembly and Simple Supply, we create panels according to this specification. By default, we utilize bridges with mouse bites. Other configurations are available upon request. Contact our project man… --- ## [Stencil Aperture Adjustment](https://community.aisler.net/t/stencil-aperture-adjustment/3425)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 8, 2023, 7:13pm UTC](https://community.aisler.net/t/stencil-aperture-adjustment/3425 "2023-12-08T19:13:46Z")
Overview The aperture (opening) of a stencil needs to be adjusted based on the stencil and footprint for optimal printing results. We use an automated system to detect whether a pad in the paste layer has already been ad… --- ## [Castellated edges](https://community.aisler.net/t/castellated-edges/48)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 17, 2021, 12:04pm UTC](https://community.aisler.net/t/castellated-edges/48 "2021-12-17T12:04:44Z")
What are Castellated Holes? Castellated Holes (a.k.a. Plated Half Holes, Castellations, … ) are a series of plated through holes or plated slots placed on the edges of the PCB and allow you to transform your PCB into a s… --- ## [Custom Bridges and Frames](https://community.aisler.net/t/custom-bridges-and-frames/49)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 17, 2021, 12:07pm UTC](https://community.aisler.net/t/custom-bridges-and-frames/49 "2021-12-17T12:07:53Z")
Why bridges? When milling the outer contours of your PCB at the end of the manufacturing process, it is necessary to hold it place. That’s why we define small areas (bridges) around the contour of your PCB, where no mate… --- ## [PCB Design Rules](https://community.aisler.net/t/pcb-design-rules/41)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 17, 2021, 11:04am UTC](https://community.aisler.net/t/pcb-design-rules/41 "2021-12-17T11:04:09Z")
Board surface finishes We offer 2 Layer PCBs with an option of HASL and ENIG as surface finish, if you use small drills, castellated edges or small trace width/spacing it is required to choose ENIG as surface finish. … --- ## [Plated and Non-Plated Slots](https://community.aisler.net/t/plated-and-non-plated-slots/46)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [October 16, 2023, 10:00pm UTC](https://community.aisler.net/t/plated-and-non-plated-slots/46 "2023-10-16T22:00:00Z")
Overview In this article, we document our technical capabilities, how to interpret the board viewer and how-to design for manufacturability. Technical Capabilities Min. Width Max. Width Plated Slots 0.7mm 2.7mm … --- ## [Plated and Non-Plated Holes](https://community.aisler.net/t/plated-and-non-plated-holes/50)
**Author:** [@Thea](https://community.aisler.net/u/Thea)\ **Replies:** 0\ **Last updated:** [December 17, 2021, 12:10pm UTC](https://community.aisler.net/t/plated-and-non-plated-holes/50 "2021-12-17T12:10:06Z")
TL;DR We interpret drill diameters in your CAD data as final hole diameters (endsize). Drill diameters will be adjusted to available tool diameters. The minimum drill distance should be at least 0.3 mm (edge-to-edge, fi…