A special stackup intended for a variety of high-power and low weight circuit designs. This service features a 0.032” (0.8mm) thick PCB, and includes 2oz (2.8mil, 70um) copper. That’s half the thickness of our Prototype service, and with twice the copper!

Pricing

$5 per square inch, which includes three copies of your design. For example, a 2 square inch board would cost $10 and you’d get three copies of your board. You can order as many copies as you want, as long as they’re in multiples of three.

Turn Times

Orders are sent to fabrication every week, and have a turn time from the fab of one week.

You can get a quote, approve a design, and pay for an order at OSH Park.

Fabrication Specs

Common Specs

These specs apply to all our PCB services.

Spec Value Manufactured in the United States Yes Lead Free compatible Yes RoHS Complaint Yes High Temp Yes, 175 Tg or higher (see Material Specs) PCB Finish ENIG (Gold), compliant with IPC-4552 Soldermask Type SMOBC (Soldermask Over Bare Copper), both sides Silkscreen Type High Res DLP, both sides

Stackup

Thickness Layer Tolerance 1mil (0.0254mm) silkscreen +/-0.2mil (0.00508mm) 1mil (0.0254mm) solder resist +/-0.2mil (0.00508mm) 2.8 mil (0.0711mm) 2 oz copper 30 mil (0.762mm) core +/-3mil (0.0762mm) 2.8 mil (0.0711mm) 2 oz copper 1mil (0.0254mm) solder resist +/-0.2mil (0.00508mm) 1mil (0.0254mm) silkscreen +/-0.2mil (0.00508mm)

Material Specs

Spec Value Substrate 175Tg FR4 Kingboard KB6167F Datasheet Board Thickness 32mil (0.8mm) nominal Dielectric 4.5 at 10Mhz Soldermask Color Purple Mask Datasheet Minimum soldermask web 4 mil (0.1016mm) Maximum soldermask alignment 3mil (0.0762mm) Covers retraction, expansion, and shift Silkscreen minimum line width 5 mil (0.127mm) (recommended minimum)

3 mil (0.0762mm) (short lines, text, graphics) Silkscreen Datasheet Maximum board size 16in (406.4mm) by 22in (558.8mm) Minimum board size 0.25in (6.35mm) by 0.25in (6.35mm)

Copper Specifications

Spec Value Copper Layers 2 Copper Weight 2oz Trace Spacing 6mil (0.1524mm) Trace Width 6mil (0.1524mm) Annular Ring 5mil (0.127mm) Board Edge Keepout 15mil (0.381) from nominal board edge Via Plating Thickness 1mil (0.0254mm)

Drill Specifications