Flexible printed circuit board
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsYING-TSO LAI, HSIAO-YUN SU
Life of this patent
Estimating the term…
Abstract
A FPCB includes a signal layer, a ground layer, and a dielectric layer lying between the signal layer and the ground layer. At least one high speed signal transmission line is formed on the signal layer. The ground layer has a copper-removed area corresponding to the transmission line. Two ground lines are symmetrically disposed at two opposite sides of the signal transmission line and substantially parallel to the signal transmission line, each ground line and the signal transmission line is spaced at a first predetermined distance. Each ground line and the signal transmission line are spaced at a first predetermined distance.
Claims12
A flexible printed circuit board (FPCB) comprising:
- a signal layer;
- at least one high speed transition line and two ground lines disposed on the signal layer, the two ground lines symmetrically disposed at two opposite sides of the signal transmission line and parallel to the signal transmission line, each ground line and the signal transmission line spaced at a first predetermined distance;
- a ground layer defining a copper-removed area corresponding to the transmission line;
- a dielectric layer lying between the signal layer and the ground layer.
Dependencies are inferred from the claim text.