Highly volatile polyether-modified silicone surfactant

A method of manufacturing a highly volatile electrical/electronic component surfactant containing a polyether-modified silicone having one polyether chain in the molecule, wherein the surface tension at 25° C. of a 0.01 mass % aqueous solution thereof is 25 mN/m or less, and when the polyether-modified silicone is heated from room temperature to 200° C. at a rate of 5° C. /minute to 200° C. and the temperature is maintained at 200° C. for 100 minutes, the polyether-modified silicone completely volatilizes said method comprising a step for reacting a hydrogen dimethylpolysiloxane having one hydrosilyl group expressed by the following structural formula (3) in the molecule with a polyether having one terminal unsaturated group expressed by the following formula (4):

• BMe2SiO(MeBSiO)nSiMe2B (3)
• wherein in formula (3), any one of B is a hydrogen atom, the remaining B are methyl groups, and n is an integer from 0-2,
• CaH2a-1O(C2H4O)bR (4)
• and in formula (4), a is 3-4, b is an integer from 1-7 and R is a methyl group or an ethyl group.