Fig. 3: Visualization of the internal PCB traces of different micro-SD cards.
From: Robotic-OCT guided inspection and microsurgery of monolithic storage devices
a Photographs of four micro-SD cards on their pinout side. b The corresponding en face OCT images. c The B-scans at the positions indicated by the red dashed lines in (a, b), clearly show the insulating layer, PCB pinout side, and PCB dice side.
