Cover for ball-grid array connector
View Patent ↗A presently-preferred embodiment of a cover for a ball-grid array connector comprises a top member and a first and a second side member adjoining opposing ends of the top member. The first and the second side members each have a mating feature formed thereon for engaging a housing of the ball-grid array connector by way of a respective complementary mating feature formed in the housing so that the cover is movable between a first and a second position in relation to the housing.
1. A method for mounting a first and a second ball-grid array connector on a circuit substrate, comprising:
positioning the first ball-grid array connector on a first surface of the circuit substrate so that a first plurality of fusible members on the first ball-grid array connector substantially pre-align with respective electrical-contact points on the first surface;
directing a first stream of heated gas over the first ball-grid array connector while a cover mated with a housing of the first ball-grid array connector is in an open position that permits the first stream of heated gas to enter the housing and thereby melt the fusible members and form a plurality of solder joints;
positioning the second ball-grid array connector on a second surface of the circuit substrate so that a plurality of fusible members on the second ball-grid array connector substantially pre-align with respective electrical-contact points on the second surface; and
directing a second stream of heated gas over the first and second ball-grid array connectors while the cover is in a closed position that substantially prevents the second stream from entering the housing and melting the plurality of solder joints.
2. The method of claim 1 , further comprising directing the second stream of heated gas over the first and second ball-grid array connectors while a cover mated with a housing of the second ball-grid array connector is in an open position that permits the second stream of heated gas to enter the housing and thereby melt the fusible members on the second ball-grid array connector and form a plurality of solder joints between the second ball-grid array connector and the circuit substrate.
3. The method of claim 1 , further comprising rotating the circuit substrate from a first substantially horizontal orientation to a second substantially horizontal orientation after directing a first stream of heated gas over the first ball-grid array connector and before positioning the second ball-grid array connector on the second surface.
4. The method of claim 1 , wherein positioning the first ball-grid array connector on a first surface of the circuit substrate comprises grasping the cover with a vacuum pickup.
5. The method of claim 1 , further comprising conveying the first ball grid array connector and the circuit substrate into a convection oven.
6. The method of claim 5 , further comprising conveying the first and second ball grid array connectors and the circuit substrate into the convection oven.
7. A method for mounting a first and a second ball-grid array connector on a circuit substrate, comprising:
positioning the first ball-grid array connector on the circuit substrate;
flowing heated gas over the first ball-grid array connector while a cover mated to the first ball-grid array connector is in an open position that permits the heated gas to enter a housing of the first ball-grid array connector;
positioning the second ball-grid array connector on the substrate; and
flowing heated gas over the first and second ball-grid array connectors while the cover is in a closed position that substantially prevents the heated gas from entering the housing of the first ball-grid array connector.
8. The method of claim 7 , further comprising placing the first ball grid array connector and the circuit substrate in a convection oven and directing the heated gas into the convection reflow oven.
9. The method of claim 8 , further comprising placing the first and second ball grid array connectors and the circuit substrate in the convection oven and directing the heated gas into the convection reflow oven.
10. The method of claim 7 , further comprising flowing the heated gas over the first ball-grid array connector while the cover is in an open position that permits the heated gas to enter the housing of the first ball-grid array connector and thereby melt fusible members of the first ball-grid array connector and form a plurality of solder joints.
11. The method of claim 10 , further comprising flowing the heated gas over the first and second ball-grid array connectors while the cover is in a closed position that prevents the heated gas from melting the plurality of solder joints.
12. The method of claim 7 , further comprising flowing the heated gas over the first and second ball-grid array connectors while a second cover mated to the second ball-grid array connector is in an open position.