Patent ID: 8727509
Filing Date: 2014-05-20
Classification: B41J,H01L

Abstract:
1. An electromechanical transducer film forming method comprising: a surface modification process of modifying a portion of a surface of a first electrode; an application process of applying a sol-gel solution to the portion of the surface of the first electrode by an inkjet method, the portion of the surface of the first electrode having been modified by the surface modification process; and processes of drying, thermally decomposing, and crystallizing the sol-gel solution applied to the portion of the surface of the first electrode by the application process, wherein an electromechanical transducer film having a desired thickness is formed on a desired pattern area on the surface of the first electrode by repeating the surface modification process, the application process, and the processes of drying, thermally decomposing, and crystallizing the sol-gel solution, wherein, in the application process of the electromechanical transducer film forming method, each of dots of the sol-gel solution applied by the inkjet method drops onto both a first area inside the desired pattern area and a second area outside the desired pattern area, and wherein the first area is included in a hydrophilic area on the surface of the first electrode, the hydrophilic area having been modified by the surface modification process, and the second area is included in a hydrophobic area on the surface of the first electrode, the hydrophobic area having been modified by the surface modification process.