Printed circuit board having orthogonal signal routing
AssigneeFCI Americas Technology, Inc.
InventorsSteven E. Minich, Mark R. Gray
Life of this patent
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Abstract
In accordance with the various embodiments disclosed herein, electrical connector footprints, such as printed circuit boards, is described comprising one or more of signal traces that each include a first section that extends parallel to the linear array direction and a second section extends in a direction that is different than the linear array direction.
Claims17
A printed circuit board defining a front card edge, the printed circuit board comprising:
- a first linear array of vias including at least one first ground via and at least one first signal via;
- a second linear array of vias spaced from the first linear array along a first direction, the second linear array including at least one second ground via and at least one second signal via, wherein each of the first and second linear arrays of vias extends along a second direction that is perpendicular to the first direction and parallel to the front card edge;
- a first electrical signal trace defining a first end that is electrically connected to the first signal via, a first region that extends along the second direction, and a second region that extends along the first direction;
- and
- a second electrical signal trace defining a first end that is electrically connected to the second signal via, a first region that extends along the second direction, and a second region that extends along the first direction,
- wherein:
- the first and second linear arrays comprise a first group,
- the printed circuit board further comprises:
- a second group of linear arrays that each includes at least one ground via and at least one signal via;
- and
- signal traces in electrical communication with respective ones of the signal vias of the second group, each having a portion that is aligned with a portion of respective ones of the signal traces that are in electrical communication with signal vias of the first group.
A printed circuit board defining a front card edge, the printed circuit board comprising:
- a first linear array extending along a linear array direction parallel to the front card edge, the at least one linear array including a first portion and a second portion spaced from the first portion along the linear array direction, each of the first and second portions including at least one signal via and at least one ground via;
- first and second margins disposed on opposite sides of the first linear array with respect to the linear array direction,
- a first electrical signal trace defining a first end that is electrically connected to a signal via of the at least one signal via of the first portion, a first region that extends with respect to the first end along the linear array direction, and a second region that extends with respect to the first region in the first margin along a first direction that is perpendicular to the linear array direction;
- a second electrical signal trace defining a first end that is electrically connected to a signal via of the at least one signal via of the second portion, a first region that extends with respect to the first end along the linear array direction, and a second region that extends with respect to the first region in the second margin along the first direction;
- and
- a second linear array of vias spaced from the first linear array along a first direction, the second linear array including first and second portions that each include at least one second ground via and at least one second signal via, wherein the first regions of each of the first and second signal traces are disposed between the first and second linear arrays with respect to the first direction.
A method of constructing a printed circuit board having a front card edge, the method comprising:
- fabricating a linear array of vias including a first portion and a second portion, wherein each of the first and second portions includes a respective at least one ground via and at a respective least one signal via, the linear array oriented along a linear array direction;
- routing a first end of a first signal trace from the at least one signal via of the first portion such that a first region extends from the first end along the linear array direction, and a second region extends relative to the first region along a first direction that is perpendicular to the linear array direction;
- routing a first end of a second signal trace from the at least one signal via of the second portion, such that a first region extends from the first end along the linear array direction, and a second region extends relative to the first region along a first direction that is perpendicular to the linear array direction, wherein:
- the second regions of the first and second signal traces are disposed in respective first and second margins that are disposed on opposite sides of the first and second linear arrays with respect to the linear array direction;
- and
- the linear array comprises a first linear array, and the printed circuit board comprises a second linear array of vias spaced from the first linear array along the first direction, the second linear array including first and second portions that each include at least one second ground via and at least one second signal via, wherein the first regions of each of the first and second signal traces are disposed between the first and second linear arrays with respect to the first direction.
A method of constructing a printed circuit board having a front card edge, the method comprising fabricating a first linear array of vias including at least one ground via and at a respective least one signal via;
- fabricating a second linear array of vias including at least one ground via and at a respective least one signal via, the second linear array spaced from the first linear array along a first direction, wherein each of the first and second linear arrays are oriented along a second direction perpendicular to the first direction;
- routing a first end of a first signal trace from a signal via of the at least one signal via of the first linear array, a first region that extends from the first end along the second direction, and a second region that extends relative to the first region along the first direction;
- and routing a first end of a second signal trace from a signal via of the at least one signal via of the second linear array, a first region that extends from the first end along the linear array direction, and a second region that extends relative to the first region along a first direction that is perpendicular to the linear array direction wherein the first regions of each of the first and second signal traces are disposed between the first and second linear arrays with respect to the first direction;
- defining first and second margins disposed on opposite sides of the first and second linear arrays with respect to the second direction, and wherein the routing comprises placing the second regions of the first and second linear arrays in the first and second margins, respectively.
Dependencies are inferred from the claim text.