--- title: Superconductive PCB Capabilities description: What kind of dielectric do you use on Aluminum Trace PCBs? This and more in the Omni Circuit Boards Capabilities page. --- [![Omni Circuit Boards Ltd Logo](https://www.omnicircuitboards.com/hs-fs/hubfs/OMNI-LOGO-.png?width=2850&height=2850&name=OMNI-LOGO-.png "Omni Circuit Boards Ltd Logo")](https://www.omnicircuitboards.com?hsLang=en) # We manufacture Copper & Aluminum-Trace PCBs - [Begin Here](https://www.omnicircuitboards.com) - [About](https://www.omnicircuitboards.com/about) - [Files & Quote](https://www.omnicircuitboards.com/filesandquote) - [Blog](https://www.omnicircuitboards.com/blog) - [Contact](https://www.omnicircuitboards.com/contact) - [Capabilities](https://www.omnicircuitboards.com/en/capabilities) - [Resources](https://www.omnicircuitboards.com/en/resources) - [FAQs](https://www.omnicircuitboards.com/faqs) - [Documentation FAQs](https://www.omnicircuitboards.com/faqs-documentation) - [Shipment FAQs](https://www.omnicircuitboards.com/faqs-shipping) - [Engineering Firms FAQs](https://www.omnicircuitboards.com/faqs-engineeringfirms) ## Design Guide for Aluminum Trace PCBs ### Our boards conform to IPC-A-600 Class 2   ### Characteristics - 2 Layer Boards | **Specifications** | **Plated Through Hole Version** | **Non Plated Through Hole Version** | | | --- | --- | --- | --- | | Aluminum thickness | ![Design 9-16-2020 14.19 PM (2)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2014.19%20PM%20(2).png?width=175&name=Design%209-16-2020%2014.19%20PM%20(2).png) | 20µm, 22µm (lower or higher upon request) | 30µm | | Aluminum alloy | Pure aluminum | AL 3003 H18 | | | Base material type | 4350B - Rogers P96/P26 - Isola | FR4 | | | Base material thickness | ![Design 9-16-2020 14.19 PM (3)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2014.19%20PM%20(3).png?width=176&name=Design%209-16-2020%2014.19%20PM%20(3).png) | As per base material type offerings from manufacturer | 0.009"- 0.031" | | PCB final surface finish | ![Design 9-16-2020 13.16 PM-copy2-copy (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2-copy%20(1).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2-copy%20(1).png) | Bare Aluminum / Aluminum with selective copper | | | Electrical testing | If required it would need to be accounted for during layout design | | | | Lead time  | 8 weeks standard, expedite available | 3 weeks standard, expedite available | | | Maximum operating temperature (Estimated)  | TBD | 110° C | | | Minimum operating temperature | Absolute zero | | | | Trace superconducting temperature | 1.1 Kelvin | 500 milliKelvin | | | Minimum PCB size or Minimum customer panel PCB size | ![Design 9-16-2020 13.16 PM-copy2](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2.png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2.png)![Design 9-16-2020 13.16 PM-copy](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy.png?width=145&name=Design%209-16-2020%2013.16%20PM-copy.png) | 0.10"x 0.10" | | | Maximum PCB size or Maximum customer panel PCB size | ![Design 9-16-2020 13.16 PM-copy2](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2.png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2.png) ![Design 9-16-2020 13.16 PM-copy](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy.png?width=145&name=Design%209-16-2020%2013.16%20PM-copy.png) | 12" x 16" | | | PCB Panelization Options (Routing) | Singles, tab-routed, v-score | | | | Quantity | Low to medium volume | | | | **Silk Screen** | | | | | Silkscreen colour |   ![OMNI silkscreen BW](https://www.omnicircuitboards.com/hs-fs/hubfs/OMNI%20silkscreen%20BW.png?width=170&height=79&name=OMNI%20silkscreen%20BW.png)   | Black or white | | | Silkscreen layer  | None, top and/or bottom | | | | Smallest distance between silk screen lines | 0.005" | | | | Smallest silk screen lines' width | 0.005" | | | | **Solder Mask** | | | | | Solder mask colour | ![Design 9-16-2020 13.16 PM-copy2 (2)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2%20(2).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2%20(2).png) | Green, white, black, blue or red | | | Solder mask clearance to metal | 0.002" | | | | Minimum clearance to unmasked aluminum | 0.005" | | | | Smallest solder mask lines' width | 0.006" | | | | **Drills** | | | | | Holes bigger than 0.250" | ![Image from iOS (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Image%20from%20iOS%20(1).png?width=179&name=Image%20from%20iOS%20(1).png) | Are routed | | | Intersecting or overlapping drills | ![Design 9-16-2020 13.16 PM-copy2-copy2 (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2-copy2%20(1).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2-copy2%20(1).png) | Not possible, will be routed | | | Possible drill sizes | 0.012" to 0.250" | | | | Smallest finish hole size | 0.010" | | | | Smallest spacing between drilled holes  (drill edge to drill edge) | ![Image from iOS](https://www.omnicircuitboards.com/hs-fs/hubfs/Image%20from%20iOS.png?width=176&name=Image%20from%20iOS.png)  | 0.010" | | | PTH  (plated through holes) | ![Design 9-16-2020 13.16 PM-copy2-copy2-copy](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2-copy2-copy.png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2-copy2-copy.png) | 0.012" to 0.062" | Not available | | Available routing diameters | 0.0315" up to 0.0940" | | | | Plated slots | ![Design 9-16-2020 13.16 PM-copy2-copy2-copy (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy2-copy2-copy%20(1).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy2-copy2-copy%20(1).png) | 0.031" to 0.062" | Not available | | Smallest radius  (inner corners) | 0.01575" | | | | Smallest routed slot width | 0.0315" | | | | **Fabrication Tolerances** | | | | | Base materials RoHS-compliance | Standard | | | | IPC-Standards | IPC-A-600 - Class 2, if applicable | | | | Material thickness tolerances | Dependent on base material type selected | +/-10% | | | Max. offset drill centre to centre of reference  | 0.002" | | | | Photolithography registration tolerance | 0.005" | | | | Routing tolerance | 0.005" | | | | Smallest annular ring | ![Design 9-16-2020 13.16 PM (2)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM%20(2).png?width=176&name=Design%209-16-2020%2013.16%20PM%20(2).png) | 0.005" | | | Smallest SMD pitch | ![Design 9-16-2020 13.16 PM-copy3-copy](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy3-copy.png?width=176&name=Design%209-16-2020%2013.16%20PM-copy3-copy.png)  | 0.010" | | | Smallest space width | ![Design 9-16-2020 13.16 PM-copy3-copy (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy3-copy%20(1).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy3-copy%20(1).png)  | 0.005" | | | Space width variability | +/- 0.002" | | | | Smallest trace width | ![Design 9-16-2020 13.16 PM-copy3 (1)](https://www.omnicircuitboards.com/hs-fs/hubfs/Design%209-16-2020%2013.16%20PM-copy3%20(1).png?width=176&name=Design%209-16-2020%2013.16%20PM-copy3%20(1).png) | 0.008" (smaller upon request and at a lower yield) | | | Trace width variability | +/- 0.002" | | | | UL-approval | Standard | Not Standard | | | V-Score core remaining | 0.010" | | | | V-Score position to aluminum features | 0.015" | | |   ### The Superconducting Circuit Blog Copyright 2026 | Manufactured by Omni Circuit Boards Ltd. a D-Wave Company