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 20µm, 22µm
(lower or higher upon request)
30µm
Aluminum alloy Pure aluminum AL 3003 H18
Base material type AD1000 - Rogers
4350B - Rogers
P96/P26 - Isola
FR4
Base material thickness As per base material type offerings from manufacturer 0.009"- 0.031"
PCB final surface finish Aluminum with selective copper / Bare Aluminum
Electrical testing Very limited, 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 printed circuit board size 0.10"x 0.10"
Maximum printed circuit board size 12" x 16"
PCB Panelization Options (Routing) Singles, tab-routed, v-score
Quantity Low to medium volume
Silk Screen
Silkscreen colour Black, white or yellow
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 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" Are routed
Intersecting or overlapping drills 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)
0.010"
PTH 
(plated through holes)
0.012" to 0.062" Not available
Available routing diameters 0.0315" up to 0.0940"
Plated slots 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 0.020"
Smallest SMD pitch 0.010"
Smallest space width 0.005"
Space width variability +/- 0.002"
Smallest trace width 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"