| 摘要 |
PCT No. PCT/EP95/02309 Sec. 371 Date Dec. 23, 1996 Sec. 102(e) Date Dec. 23, 1996 PCT Filed Jun. 14, 1995 PCT Pub. No. WO96/00492 PCT Pub. Date Jan. 4, 1996The method of forming a multilayer printed circuit board includes applying a photopolymerizable coating append having a solid content of 70 to 95% by weight and a viscosity of 10 to 60 Pa.s of 25 DEG C. to a surface of the applicator cooled to a temperature of 5 DEG C. by a metering roll surface of which is controllably maintained at a temperature range from 25 DEG to 60 DEG C., so that the coating agent is deposited on opposite sides of a board and has an application viscosity of 20 to 100 Pa.s at a coating speed of 5 to 20 m/min to form a film thickening of 10 to 200 mu m.
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