ESD protection
View Patent ↗The present invention relates to an electrical connector for a first IC, comprising a second IC ( 12 ) carrying ESD protection, the second IC ( 12 ) being integrated into the connector ( 8 ), which enhances the ESD protection and preserves the RF performance of such connector ( 8 ). The present invention further relates to a method for making an electrical connector ( 8 ) for a first IC, comprising this step of providing ESD protection to the first IC by integrating a second IC ( 12 ) carrying ESD-protection into the connector ( 8 ).
1. A system comprising:
a circuit board having openings for receiving corresponding pins of an electrical connector, the pins defining a footprint of the electrical connector and comprising at least an input pin and a ground pin;
an electrostatic discharge protection assembly coupled with the circuit board and positioned within the footprint of the electrical connector such that when the electrical connector is attached to the circuit board, the electrostatic discharge protection assembly is disposed between the circuit board and the electrical connector.
2. The system of claim 1 , wherein the electrical connector is coupled with a first integrated circuit.
3. The system of claim 2 , wherein the electrostatic discharge protection assembly comprises a second integrated circuit.
4. The system of claim 1 , wherein the second integrated circuit is formed having pins with a length of about 0.3 mm.
5. The system of claim 1 , wherein the circuit board is connected to the pins at a first location on the pins which first location is spaced by a certain distance from a second location which second location is designated to be connected to a mother board.
6. The system of claim 5 , wherein the distance is about 0.1-1.0 mm, preferably about 0.5 mm.
7. The system of claim 1 , wherein the electrostatic discharge protection assembly is coupled directly between the input pin and the ground pin.
8. ESD protection assembly for a first IC, comprising:
a carrier-PCB being connectable to pins of a dedicated connector of the first IC, and a second IC carrying ESD protection, the second IC being located between the carrier-PCB and the dedicated connector, and coupled directly between an input pin and a ground pin of the dedicated connector.
9. ESD protection assembly as claimed in claim 8 , wherein the carrier-PCB comprises holes adapted to receive the pins of the dedicated connector.
10. ESD protection assembly as claimed in claim 8 , wherein the second IC is assembled in a standard IC package and the standard IC package is connected to the carrier-PCB.
11. ESD protection assembly as claimed in claim 8 , wherein the second IC is attached to the carrier-PCB and at least some of connections between the second IC and the carrier-PCB are protected by a protective material enshrouding the second IC and its connections to the carrier-PCB.
12. ESD protection assembly as claimed in claim 8 , wherein the assembly is designed to provide at least between 8 and 15 kV ESD protection.
13. ESD protection assembly as claimed in claim 8 , wherein the assembly comprises an active silicon based IC.
14. ESD protection assembly as claimed in claim 8 , wherein the assembly comprises diodes in a rail-to-rail configuration.
15. ESD protection assembly as claimed in claim 8 , wherein the assembly shows a small internal capacitance, preferably in the order of 1 pF.
16. A method for making an electrical connector for a first IC, comprising the step of:
providing a circuit board having openings for receiving corresponding pins of an electrical connector, the pins defining a footprint of the electrical connector and comprising at least an input pin and a ground pin; and
providing an electrostatic discharge protection assembly coupled with the circuit board and positioned within the footprint of the electrical connector such that when the electrical connector is attached to the circuit board, the electrostatic discharge protection assembly is disposed between the circuit board and the electrical connector.
17. Method as claimed in claim 16 , wherein the electrostatic discharge protection assembly is coupled directly to the input pin and the ground pin.
18. Method as claimed in claim 16 , further comprising coupling the circuit board to the pins of the connector.
19. Method as claimed in claim 16 , further comprising the step of:
connecting the circuit board to the electrical connector prior to a step of connecting the electrical connector to a first IC.