I'm looking to manufacture a small run (~10 units) of flex boards.The board is roughly 14 x 40 mm, with two bend points. Four layers would be optimal, but we could probably make it work with two. The design has 1-2 0.4mm pitch BGA chips, so trace width and clearance needs to be tight.
Dec 12.2019, 18:57:21
With 0.4mm BGA and more than two rows, you will almost definitely need an HDI PCB to get it routed.