A biodegradable drug delivery compositions comprising a triblock copolymer containing a polyester and a polyethylene glycol and a diblock copolymer containing a polyester and an end-capped polyethylene glycol, as well as a pharmaceutically active principle is disclosed. To this effect the powder is tempered at a temperature that is at least 20\xb0 C. During the connecting course of the electrical connector and the component, the conductive pad connects to the first contacting portion in the upper position and the second contacting portion in the lower position in turn and finally connects to the second contacting portion.