The invention relates to a three-dimensional optical memory medium capable of recording and reading a large quantity of information therein and therefrom, and a process for producing the same. The internal actuator has a rotatable carriage for supporting the head. The reservoir has one or more outlets connected by a short jumper line to an adjacent tool to be operated. A Lens laminated plate is subsequently bonded onto the LED package structures. The invention also provides a battery electrode having an inner electrode layer and an outer electrode layer. 1 to 30 parts by weight of a curing agent capable of generating a free radical upon heating, and a process for producing a wiring-connected board by using the wiring-connecting material.