| abstract |
A method of forming a buried wiring comprising the steps of: (A) forming a wiring and a first insulating layer filled between the wirings on a substratum, (B) immersing the first insulating layer in a fluid which can dissolve the first insulating layer, to dissolve the first insulating layer into the fluid, (C) substituting, for the fluid, a raw material solution containing a raw material for forming a second insulating layer, without bringing the wiring into contact with a gas, and (D) filling a second insulating layer formed by gelation in the raw material solution at least between the wirings, and then, drying off the raw material solution, thereby to form the second insulating layer at least between the wirings. |