Connector for high-speed communications
View Patent ↗A high speed electrical connector is provided that comprises a substantially planar dielectric, a substantially planar ground plane, and a signal conductor. The ground plane is disposed on one planar surface of the planar dielectric and the signal conductor is disposed on the opposing planar surface of the planar dielectric.
1. A method of making an electrical interconnect system, comprising:
providing a pair of electrical conductors suitable for transmitting differential signals;
providing a ground plane;
positioning a dielectric material between the ground plane and the pair of electrical conductors; and
providing a first and a second receptacle contact each comprising a contact beam for engaging a corresponding one of the electrical conductors, an offset adjoining the contact beam, and a pin adjoining the offset, wherein portions of the contact beams of the first and second receptacle contacts are positioned in a common plane, and the offsets extend from the associated contact beams in substantially opposite directions and by substantially equal distances when the contact beams engage the corresponding ones of the electrical conductors whereby the pins of the first and second receptacle contacts are positioned on opposite sides of the common plane.
2. The method of claim 1 , wherein providing a first and a second receptacle contact comprises stamping one or more sheets of electrically-conductive material to form a first and a second pre-formed contact, and bending the first and second pre-formed contacts to form the offsets of the first and second receptacle contacts.
3. The method of claim 1 , wherein positioning a dielectric material between the ground plane and the pair of electrical conductors comprises etching the pair of electrical conductors onto one surface of the dielectric material.
4. The method of claim 3 , wherein positioning a dielectric material between the ground plane and the pair of electrical conductors further comprises etching the ground plane onto another surface of the dielectric.
5. The method of claim 1 , further comprising connecting a connector to each end of each of the pair of electrical conductors.
6. The method of claim 5 , wherein connecting a connector to each end of each of the pair of electrical conductors comprises connecting a contact pin to one end of each of the pair of electrical conductors and connecting a solder ball to the other end of each of the pair of electrical conductors.
7. The method of claim 1 , wherein the contact beam of each of the receptacle contacts comprises a bowed portion and a substantially straight portion.
8. The method of claim 7 , wherein the substantially straight portions of the receptacle contacts lie in the common plane.
9. The method of claim 2 , wherein bending the first and second pre-formed contacts to form the offsets of the first and second receptacle contacts comprises forming two bends of approximately ninety degrees in each of the first and second pre-formed contacts.
10. A method of making an electrical connector, the electrical connector comprising a pair of electrical contacts, the pair of electrical contacts each comprising a straight section that lies in a common plane, an offset portion connected to the straight section, and a pin connected to the offset portion, comprising the step of:
bending the pair of electrical contacts in equal and opposite directions so that each pin is positioned on opposite sides of the common plane and each pin is evenly spaced from the common plane.
11. The method of claim 1 , further comprising the step of bending the electrical contacts so that the offset portion of each one of the pair of electrical contacts is perpendicular to the common plane.