An integrated circuit memory with clock-controlled memory access includes at least one data connection to inputoutput data, a memory cell array including memory cells to store data, a clock generator circuit to generate a clock signal, a memory circuit to store data, a control circuit to control storage of data in the memory circuit and to control output of data from the memory circuit. The raised structures can be formed by coating a bottom electrode layer with nano-particles and etching the bottom electrode layer. The extension antenna is inductively coupled to the portable RFID reader and in many embodiments, the extension antenna is retrofit to an existing portable RFID reader.