ABSTRACT
Three dimensional (3D) printing consists of sequential printing of various layers of materials on top of each other to create complex structures with different functionalities. Stereolithography (SLA) consists in the sequential exposure of a photochemical polymer. This way, each layer of the final 3D object is exposed by a ultra violet laser which crosslinks the photopolymer to convert it into a non-soluble material. In terms of disadvantages, although SLA can produce very high quality prototypes, the fragility and necessity of post curing of the 3D printed objects are still issues that have not been solved for this printing method. Polymeric materials with low melting points are some of the most widely used materials in the area of 3D printed electronics due to the low cost, chemical strength, and low processing costs. Hybrid 3D printed electronics has become one of the most researched topics in the area of flexible and stretchable electronics.
