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