Stevenage Circuits - Taking Technology Further

Capability and Design Guidelines

Maximum Panel Sizes

(Usable circuit area is 2" less in each axis)

Process Maximum (") Additional
Exposure

21 x 24

21 x 26

Outer Layer

Inner Layer

Plating 24 wide  
Machining

21 x 30

18 x 24

Drilling

Routing

Bonding 21 x 28  
Surface Finish 18 x 24 Nickel/Gold
  24 x 24 HASL
  24 wide Immersion tin
  24 wide Silver
Plasma desmear 18 x 24  
Test 25.6 x 26.4 Flying Probe and Bed of Nails tester
Silkscreen 21 x 26  
Conveyorised 24 wide Desmear, Resist, Etch, Bond Treat Direct Metalisation

Our standard panel sizes are:

18 x 12, 18 x 16 (consult for flex), 21 x 18 (consult for flex)
Consult for:
21 x 12, 21 x 16, 24 x 18
26 x 21* and 28 x 21*

* Limited processes