Patent ID: 8775991

Claim:
A memory module, comprising: a first memory device having a first solder ball connector, wherein the first solder ball connector is to provide a transmission path for an electric signal of a first designation to pass between the memory module and the first memory device, the first solder ball connector coupled to a first via; a second memory device having a second solder ball connector, wherein the second solder ball connector is to provide a transmission path for an electrical signal of the first designation to pass between the memory module and the second memory device, the second solder ball connector coupled to a second via; and a third memory device having a third solder ball connector, wherein the third solder ball connector is to provide a transmission path for an electrical signal of the first designation to pass between the memory module and the third memory device, the third solder ball connector coupled to a third via, wherein a first inter memory device trace electrically couples the first solder ball connector to the second solder ball connector and a second inter memory device trace couples the second solder ball connector to the third solder ball connector, and wherein to match an impedance of the first inter memory device trace with an impedance of the second inter memory device trace the first and second trace are substantially the same length.