Machine placeable circuit board interposer

摘要

An interposer (30) for connecting two or more circuit boards (22, 26) is a circuit carrying substrate (32) with two or more solder pads (40, 44) on each of two sides (34, 36). Each of the solder pads (40, 44) are connected (42) to an electrically conductive via (38) in the substrate (32), providing electrical interconnection from one side (34) to the other side (36). One or more solder pads (40, 44) have a solder ball (46) on it. The interposer (30) has a contact area (48) suitable for the interposer (30) to be picked up and placed by an automated part placement machine (50). An electrical assembly (20) is made by soldering the solder balls (46) on one side (34) of the interposer (30) to corresponding solder pads (24) on a circuit board (22). The solder balls (46) on the other side (36) of the interposer (30) are likewise soldered to the corresponding solder pads (28) of a second circuit board (26).