Abstract: An electronic device includes a substrate, a plurality of flexible circuit boards, a plurality of ICs and an insulator. The flexible circuit boards are disposed on the substrate. In a top view of the electronic device, the flexible circuit boards are overlapped with an edge of the substrate. The ICs are disposed on the substrate. The insulator is disposed on the flexible circuit boards and contacted the ICs, wherein the insulator has a first side and a second side opposite to the first side and the first side is closer to the edge than the second side. Along a first direction perpendicular to an extension direction of the edge, a first minimum distance between the second side and one of the ICs is less than a second minimum distance between the second side and one of the flexible circuit boards.

Abstract: A reversible wrench, which includes a box body, an adapter mounted within the box body and supported on an inside annular flange in the box body, the adapter having a bottom coupling extended out the box body for holding a tool and a top ratchet, a driving block fastened to the box body on the inside above the adapter and stopped from rotary motion relative to the box body, the driving block having a bottom ratchet, which is forced into engagement with the ratchet at the adapter for enabling the adapter to be rotated with the driving block when the reversible wrench is attached to the workpiece and forced downwards, and a spring member connected between the adapter and the driving block to push the driving block apart from the adapter.