Body, comprising method of manufacturing the piezoelectric device and the base body

Base body (1) comprising: - an electro-ceramic material (5), and - a patterned coating (10) on at least a part of the surface of the base body (1) comprising an inorganic-organic hybrid polymer, wherein the inorganic-organic hybrid polymer - an organic prepolymer and - a hydrolytic condensate includes, wherein the hydrolytic condensate contains organofunctional silanes having organic substituents which are at least partially crosslinked with the prepolymer.