Need to replace a part on a circuit board? How about add a component? SchmartPatch allows you to add components to or replace components on any substrate such as a PCB(Printed Circuit Board). This SchmartPatch board allows you to cut off a pad, stick t on to the surface (with the adhesive already on the back of the SchmartPatch) and then solder a component onto the SchmartPatch. There are also pads to solder jumper wires to make the electrical connection.