SURFACE TREATMENT METHOD, MANUFACTURING METHOD FOR LIQUID DROP EJECTION HEAD, LIQUID DROP EJECTION HEAD AND LIQUID DROP EJECTION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a surface treatment method capable of easily and inexpensively giving an affinity and a liquid-repellent property relative to an adhesive to two different predetermined areas of a surface of a substrate, a manufacturing method for a liquid drop ejection head provided with the substrate applied with the treatment by the surface treatment method, a liquid drop ejection head manufactured by the manufacturing method, and a liquid drop ejection apparatus with a high reliability.;SOLUTION: The surface treatment method of the present invention is a surface treatment method for giving the liquid-repellent property to a first area of the surface of the substrate and giving the affinity relative to the adhesive to a second area different from the first area, and is a surface treatment method having a step for bonding a first coupling agent having the liquid-repellent property to a hydroxyl group exposed on the surface of the at least first area and the second area of the substrate, a step for applying a hydroxyl group introduction treatment for introducing the hydroxyl group to the first coupling agent existing in the second area, and a step for bonding the second coupling agent having the affinity relative to the adhesive to the hydroxyl group of the first coupling agent.;COPYRIGHT: (C)2008,JPO&INPIT