Flex and Rigid-Flex Layer Stackups in IPC-2581 format

Download our Flex and Rigid-Flex Standard Layer Stackups in IPC-2581 format here.

STARR.flex Standards
Layer Nominal thickness* 1F-xRi (Flex-rigid) xRi-2F-xRi (Flex-rigid) 2F-xRi (Flex-rigid)
2 0,80 mm 1F-1Ri_0,8_18 - -
1,00 mm 1F-1Ri_1,0_18 - -
1,55 mm 1F-1Ri_1,5_18 - -
3 0,80 mm - - 2F-1Ri_0,85_18
1,00 mm - - 2F-1Ri_1,0_18
1,55 mm - - 2F-1Ri_1,5_18
4 0,80 mm 1F-3Ri_0,8_18 1Ri-2F-1Ri_0,8_18 2F-2Ri_0,85_18
1,00 mm 1F-3Ri_1,0_18 1Ri-2F-1Ri_1,0_18 2F-2Ri_1,0_18
1,55 mm 1F-3Ri_1,55_18 1Ri-2F-1Ri_1,55_18 2F-2Ri_1,5_18
6 1,00 mm - 2Ri-2F-2Ri_1,0_18 2F-4Ri_1,0_18
1,55 mm 1F-5Ri_1,55_18 2Ri-2F-2Ri_1,55_18 2F-4Ri_1,5_18
8 1,00 mm - 3Ri-2F-3Ri_1,0_18 -
1,55 mm 1F-7Ri_1,55_18 3Ri-2F-3Ri_1,55_18 2F-6Ri_1,6_18
PURE.flex Standards
Layer Nominal thickness* xF-Ri (TWINflex)
2 0,30 mm 2F-Ri_0,3_18
3 0,70 mm 3F-Ri_0,65_18
4 0,70 mm 4F-Ri_0,66_18

* the actual total thickness can be seen from the file name

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