An ectoplasmic spell has full effect against incorporeal or ethereal creatures.
You convert material of one sort into a product that is of the same material. Creatures or magic items cannot be created or transmuted by the fabricate spell. The quality of items made by this spell is commensurate with the quality of material used as the basis for the new fabrication. If you work with a mineral, the target is reduced to 1 cubic foot per level instead of 10 cubic feet.
You must make an appropriate Craft check to fabricate articles requiring a high degree of craftsmanship.
Casting requires 1 round per 10 cubic feet of material to be affected by the spell.
Can you use these two to make weapons that effectively have ghost touch, or other objects with what is effectively ghost touch?
Example: Using an Ectoplasmic Fabricate to make a longsword, since the longsword is an effect of the spell Fabricate, it has full effect against incorporeal or ethereal creatures.