This Medical Rigid-Flex FPC illustrates how designers use flex to reduce board thickness as well as package size and weight, and incorporate connectors into the bare board design.
rena at popwintech doc com
Application: Wearable Insulin Pump
Size: 3 by 3
Layers: 6 Overall, 2 Flex
Materials: Adhesiveless Flex, Polyimide Core, Polyimide No-Flow Prepreg
Traces: 4/4 Innerlayers - 4/4 Outerlayers
Minimum Hole: 0.010
Minimum Pad: 0.022
Thickness: 0.030
vacuum-packed for inner,thicker carton for outer
This Commercial / Telecom Rigid-Flex FPC is for a computer application with controlled impedance on five layers, and with selective gold electro-plate and electroless nickel
rena atpopwintech doc com
Application: Computer workstation
Size: 12 by 6.5
Layers: 12 overall, 2 flex
Materials: Adhesiveless flex, Polyimide core, Polyimide no-flow prepreg
Traces: 4.5/4 innerlayers flex - 3.2/4 innerlayers hardboard - 4/6 outerlayers
Minimum hole: 0.0145
Minimum pad: 0.025
Thickness: 0.093 +/- 0.008
vacuum-packed for inner,thicker carton for outer
This Medical Imaging board for a medical device that is eighteen layers and presents difficult registration due to the number of layers and board's dimensions.
Application: Medical Imaging
Size: 4.5 by 22.25
Layers: 18 Overall, Four Layers Flex with Four Layers of Epoxy Silver Shielding
Materials: Adhesiveless Flex, Polyimide Core, Polyimide No Flow Prepreg
Traces: 7/4 Innerlayers - 7/5 Outerlayers
Minimum Hole: 0.024
Minimum Pad: 0.040
Thickness: 0.093 +/- 0.005
vacuum-packed for inner,thicker carton for outer
