The invention refers to electronic devices (D) and to a method for obtaining electronic devices (D) comprising, electronic elements, in particular optoelectronic elements (7), the method comprising the steps of:—providing (S1) a substrate from which first walls (1) protrude along a Z-axis towards an open end side forming at least one rectangle along a X-Y-plane surrounding a respective at least one space(S);—positioning (S2) a respective electronic element (7a), in particular optoelectronic element (7),within the respective space(S)and connecting it to contact pads (9);—attaching (S3) a respective functional element (11a), in particular optical element (11), in particular a lens, at the open end side of respective first wall (1) to cover the respective space (S);—forming a second wall (2) by surrounding (S4) the respective functional element (11a), in particular optical element (11), with a darn material.