Number of units are for TWO arms (116 total substrates)
Substrate type 1 - 8 units
Substrate type 2 - 8 units
These two substrates are used in planes A, B, C, and D. The
length of the substrate is approximately 141 mm plus whatever
room is needed for the flex cable attachment. Each substrate has
room for 12 double chip sets spread out across the 141 mm. There
are two different substrates because both flex cables need to
come out on the non-beam side, so the two substrates have
different handedness for the flex-cable attachment.
Substrate type 3 - 46 total units for both types
Substrate type 4 -
These two substrates are used on all modules with 4 wafers of
types 2, 3, 4, or 5. The length of this substrate is
approximately 171 mm plus the space for flex cable attachment.
These two substrate types both have room for 16 single chip sets
spread out over about 171 mm. The two variations are right- and
left-handed versions of the same board. The exact split into the
two handedness versions awaits a detailed design of the flex
cable layout. Note that the M substrate of this type 4 found on
the bottom of section K3/4 and
L3/4 (module type 8) will have only 8 chip sets for the wafer
type 3.
Substrate type 5 - 50 total units for both types
Substrate type 6 -
These two substrates are used on all modules with 3 wafers of
types 3, 4, or 5. The length of this substrate is approximately
129 mm plus the space for flex cable attachment. These two
substrate types both have room for 12 single chip sets spread out
over about 129 mm. The two variations are right- and left-handed
versions of the same board. The exact split into the two
handedness versions awaits a detailed design of the flex cable
layout. It is possible that this substrate could be a cut down
version of Substrates 3/4.
Substrate type 7 - 2 units
Substrate type 8 - 2 units
These two substrates are used with the single 'orphan' wafer at
the end of the H plane. They contain room for 4 single chip sets
and come in both left-handed and right-handed versions. It is
possible that this substrate could be a cut down version of
Substrates 3/4.