The document describes a 6-layer flex-rigid printed circuit board designed for electronics, made from high-quality FR4 TG170 + PI material. It features countersunk holes for improved wiring efficiency and has specific technical parameters including thickness and surface treatment. The board consists of both flexible and rigid sections, with noted solder mask and legend details.

1. 6 layers flex-rigid printed circuit board
Flex-rigid printed circuit board for electronics is crafted using superior quality FR4
Tg170+PI material and boasts countersunk holes for increased efficiency in wiring.
Technical Parameters
Layers: 6 layers Rigid-flex Pinted circuit board with Countersunk holes
Material: FR4 TG170 + PI
Thickness: 3.00mm+/-10%
Surface treatment: immersion gold
Panel size: 293*58mm
Specialty: L3-4 (flexible board), L1-2,L5-6 (rigid board)
Solder mask: Green + Coverlay
Legend: White
Countersunk holes on rigid parts