Patent ID: 7159758
Filing Date: 2007-01-09
Classification: B23K,H05K

Abstract:
1. A circuit board processing system, comprising: a circuit board fabrication stage configured to fabricate a circuit board having a set of circuit board pads; a solder fusing stage coupled to the circuit board fabrication stage, the solder fusing stage being configured to (i) apply flux and solder concurrently to the set of circuit board pads, and (ii) activate the flux and melt the solder to form a set of substantially flat solder coatings which is fused to the set of circuit board pads; and a washing stage coupled to the solder fusing stage, the washing stage being configured to remove contamination from a surface of the circuit board having the circuit board pads and from the set of substantially flat solder coatings which is fused to the set of circuit board pads, wherein the solder fusing stage comprises: wherein the circuit board fabrication stage, when fabricating the circuit board having the set of circuit board pads, is configured to glue, heat, and press together layers of non-conductive and conductive material into a substantially rigid planar structure having signal planes, traces, and contacts to form a network of electrical pathways between multiple integrated circuit device packages and a support surface to support the multiple integrated circuit device packages; and wherein the circuit board pads are Surface Mount Technology (SMT) pads which are adapated to soldering to integrated circuit packages having SMT package contacts; and wherein the solder fusing stage, when activating the flux and melting the solder to form the set of substantially flat solder coatings which is fused to the set of circuit board pads, is configure to: apply high heat to form as the set of substantially flat solder coatings, a set of solderable structures having (i) intermetallic bonds with the set of SMT pads, and (ii) external surfaces with high solder affinity in order to solder to the SMT package contacts of the integrated circuit packages during an SMT circuit board assembly process.