Cost impact of layer count
The information for the chart to the right was
taken from a sampling of circuits built with
Minco's standard materials. This chart is not
intended to be used as a price guide.
However, it does show that circuit cost
generally rises with layer count.
It is in your best interest to experiment with
options in order to save money. For
example, consider using two circuits to do
the job of one. Two double-layer circuits
could potentially be less expensive than one
four-layer multilayer circuit. Circuits can also
be folded in order to save space and layers.
Circuit Code
MIL-P-50884 Type
Description
E0C
-
Stiffeners, insulators, wires only. No circuitry.
E1A
1
Single layer - access on one side.
E1B
1
Single layer - major access holes on two sides.
E1C
1
Single layer - access on one side, with stiffeners, pins, or
connectors.
E1D
1
Single layer - access on both sides, with stiffeners, pins,
or connectors.
E2A
5
Two layers - no plated through-holes.
E2B
2
Two layers - with plated through-holes.
E2C
2
Two layers - with plated through-holes and stiffeners,
pins, or connectors.
E2D
5
Two layers - no plated through-holes, with stiffeners,
pins, or connectors.
EMxA*
5
Multilayer flex-circuit -no plated through-holes.
EMxB
3
Multilayer flex-circuit -with plated through holes.
EMxC
3
Multilayer flex-circuit -with plated through-holes and
stiffeners, pins, or connectors.
EMxD
5
Multilayer flex-circuit - no plated through-holes, with
stiffeners, pins, or connectors.
ERxA
5
Rigid-flex - no plated through-holes.
ERxB
4
Rigid-flex - with plated through-holes.
ERxC
4
Rigid-flex - with plated through-holes and stiffeners, pins,
and connectors.
ERxD
5
Rigid-flex - no plated through-holes, with stiffeners, pins,
or connectors.
* Layer count indicated by x. Example: EM3B1887, ER6C2896
Note: Coils are represented with a `C' instead of an `E'.
0
1
2
3
4
5
6
E1A
E1B
CIRCUIT TYPE (CHART ABOVE)
COS
T
MUL
TIPLIER
E2B
EM3B
EM4B
ER4C
Minco circuit codes
Application Aid #24
Tel: (763) 571-3121 K Fax: (763) 571-0927 K www.minco.com
7