| abstract |
A manufacturing method for multi-layered electronic parts which is characterized in that from a roll of a polyethylene microporous sheet which has an electrode layer forming agent formed on its surface, contains 45 to 80 volume percent of inorganic filler, and has a thickness of 25 mum or less, tensile strengths of 3 kg/mm2 or more in the longitudinal direction and of 1 kg/mm2 or more in the transverse direction, and an elongation of 30% or less in the MD direction, layered electronic parts are formed via (a) a step of unwinding the sheet, (b) a step of cutting the sheet in a predetermined length, (c) a step of stacking the cut sheets, and (d) a step of cutting the layered structure and efficient production is made possible. |