A tablet, method of forming the tablet, and article of manufacture that includes the tablet. The tablet can include a layer of a first dissolvable material and a first circuit positioned on the layer of the first dissolvable material. The tablet can also include a layer of a second dissolvable material coating the first circuit, and a second circuit positioned on the layer of the second dissolvable material. The method can include providing the tablet, and determining a dissolving pattern for the tablet.