Patent ID: 8474139
Filing Date: 2013-07-02
Classification: B41J,Y10T

Abstract:
1. A method of manufacturing a liquid ejecting head, the method comprising: forming a piezoelectric element having a length in a reference direction longer than a width in an orthogonal direction orthogonal to the reference direction on a first substrate; and adhering a second substrate to a surface of the first substrate opposed to the piezoelectric element at a temperature higher than a normal temperature, wherein the second substrate has an anisotropic first thermal expansion coefficient in the reference direction and a second thermal expansion coefficient in the orthogonal direction, wherein the first thermal expansion coefficient is greater than both the second thermal expansion coefficient and a thermal expansion coefficient of the first substrate, wherein when the first substrate and the second substrate are cooled to the normal temperature, the second substrate is contracted more than the first substrate in the reference direction such that the second substrate applies a compressive stress to the first substrate.