Circuit board via arrangement for differential signal connector

Abstract

Stacked receptacles in a connector that each provide side-by-side differential signal contacts, are attached to a circuit board without additional width to accommodate multiple layers of differential signals by using connector wafer inserts that rotate the side-by-side positioned differential signal contacts to front-to-back contacts, the circuit board including a substrate having a plurality of openings to make electrical contact with conductive terminal tail portion inserted therein, the openings being divided into first and second groups of openings, the first group of openings receiving differential signal terminal tails therein and the second group of openings receiving ground terminal tail therein, when a connector is mounted to said circuit board.

1. A circuit board for use with a connector carrying differential signals, comprising:
 a substrate, the substrate including a plurality of openings formed therein, the openings including plated portions so as to make electrical contact with conductive terminal tail portions inserted therein, the openings being divided into first and second groups of openings, the first group of openings receiving differential signal terminal tails therein when a connector is mounted to said circuit board and the second group of openings receiving ground terminal tails therein when a connector is mounted to said circuit board; 
 the first group of openings having a plurality of first opening and the second of group of openings having a plurality of second opening, 
 each of said first opening having a pair of said second openings associated therewith, the first opening and said associated second opening pair being arranged at apexes of an imaginary triangle, two of said first openings being spaced apart from each other and aligned with each other such that said two first openings are contained within a perimeter defined by imaginary lines intersecting said two pairs of associated second openings. 
 
     
     
       2. The circuit board of  claim 1 , wherein said two pairs of associated second openings are arranged to define a four-sided figure. 
     
     
       3. The circuit board of  claim 1 , wherein said substrate includes a conductive layer having at least one opening therein devoid of conductive material, the conductive layer opening encompassing said two first openings. 
     
     
       4. The circuit board of  claim 3 , wherein said conductive layer opening encompasses said two first openings and said two pairs of associated second openings define an imaginary perimeter that encompasses said conductive layer opening. 
     
     
       5. The circuit board of  claim 4 , wherein said conductive layer opening is a five-sided figure. 
     
     
       6. The circuit board of  claim 4 , wherein said conductive layer opening is divided into two separate conductive layer sub-openings by a thin conductive strip which bisects said conductive layer opening and which extends between said two first openings. 
     
     
       7. A circuit board for use with a connector carrying differential signals, comprising:
 a substrate, the substrate including a plurality of vias formed therein, the vias including plated portions so as to make electrical contact with a conductive terminal tail portion inserted therein, said vias being divided into first and second groups of vias, the first group of vias receiving differential signal terminal tails therein when a connector is mounted to said circuit board and the second group of vias receiving ground terminal tails therein when a connector is mounted to said circuit board; 
 said first group of vias being arranged in a first line of vias and said second group of vias being arranged in second and third lines of vias, the second and third lines of vias being disposed on opposite side of said first line of vias; 
 the first group of vias having a plurality of first via and the second of group of vias having a plurality of second via, and, 
 each of said first vias having a pair of said second vias associated therewith, such that pairs of said first vias disposed in said first line of vias are contained within a perimeter defined by imaginary lines intersecting said two pairs of associated second vias disposed in said second and third lines of vias. 
 
     
     
       8. The circuit board of  claims 7 , wherein said each of first vias and said associated pair of second vias therewith are arranged at apexes of an imaginary triangle. 
     
     
       9. The circuit board of  claim 7 , wherein said imaginary lines intersecting said two pairs of associated second vias define a four-sided figure. 
     
     
       10. The circuit board of  claim 7 , wherein said substrate includes a conductive layer having at least one opening therein devoid of conductive material, the conductive layer opening encompassing a pair of said first vias. 
     
     
       11. The circuit board of  claim 10 , wherein said conductive layer opening encompasses the pair of first vias and said two pairs of associated second vias define an imaginary perimeter that encompasses said conductive layer opening. 
     
     
       12. The circuit board of  claim 11 , wherein said conductive layer opening is a five-sided figure. 
     
     
       13. The circuit board of  claim 11 , wherein said conductive layer opening is divided into two separate conductive layer sub-openings by a thin conductive strip which bisects said conductive layer opening and which extends between each via of said pair of first vias. 
     
     
       14. A circuit board for use with a connector carrying differential signals, comprising:
 a substrate, the substrate including a plurality of openings formed therein, the openings including plated portions so as to make electrical contact with conductive terminal tail portions inserted therein, the openings being divided into first and second groups of openings, the first group of openings receiving differential signal terminal tails therein when a connector is mounted to the circuit board and the second group of openings receiving ground terminal tails therein when a connector is mounted to the circuit board; 
 the first group of openings having a plurality of first opening and the second of group of openings having a plurality of second opening, and 
 each of said first opening having a pair of said second openings associated therewith, the first opening and the associated second opening pair being arranged at apexes of an imaginary triangle, two of the first openings being spaced apart from each other and aligned with each other such that the two first openings are contained within a perimeter defined by imaginary lines intersecting the two pairs of associated second openings, wherein the substrate including a conductive layer having at least one opening therein devoid of conductive material, the conductive layer opening encompassing the two first openings. 
 
     
     
       15. The circuit board of  claim 14 , wherein the two pairs of associated second openings are arranged to define a four-sided figure. 
     
     
       16. The circuit board of  claim 14 , wherein the conductive layer opening encompasses the two first openings and the two pairs of associated second openings define an imaginary perimeter that encompasses the conductive layer opening. 
     
     
       17. The circuit board of  claim 16 , wherein the conductive layer opening is a five-sided figure. 
     
     
       18. The circuit board of  claim 14 , wherein the conductive layer opening is divided into two separate conductive layer sub-openings by a thin conductive strip which bisects the conductive layer opening and which extends between the two first openings. 
     
     
       19. The circuit board of  claim 14 , wherein the conductive layer opening is divided into two separate conductive layer sub-openings by a thin conductive strip which bisects the conductive layer opening and which extends between each via of the pair of first vias.