distance the conductive spacer is molded as one piece from synthetic resin mixed with whisker shaped carbon fiber with a small diameter as a conductive filler the conductive spacer is thus durable additionally the carbon fiber reinforces thin portions in the conductive spacer this durable conductive spacer can equalize ground potential of the printed boards application_number US 43800789 A description the first embodiment is explained referring to fig1 a conductive spacer 1 for the first embodiment is molded as a single piece from nylon 6 resin with 30 by volume of carbon fiber mixed the carbon fiber is from 0 1 mm to 1 mm long with a diameter of 0 1 microns to 0 5 microns the carbon fiber is developed from iron particles with a particle size of 0 02 microns to 0 03 microns through a gaseous phase method at 950 u00b0 c to 1300 u00b0 c in which temperature range benzene is thermally decomposed the carbon fiber has a tensile strength of 14 0 kg mm 2 and an electrical resistivity of 8 u00d7 102 ohm cm as shown in fig1 the conductive spacer 1 is a combination of a supporting body 5 a spindle 8 and an anchor 9 the supporting body 5 comprises a center column 2 and upper and lower bases 3 and 4 formed on respective ends of the.