Patent ID: 8714711
Filing Date: 2014-05-06
Classification: B41J

Abstract:
1. A liquid recording head, comprising: a liquid ejection chip comprising: a head substrate that forms a liquid introduction port for supplying the liquid to the liquid supply port, wherein: the first surface and a second surface opposite to the first surface of the silicon substrate have a plane direction (100), a protective layer having resistance to the liquid and an adhesiveness improving film are disposed on the second surface, the protective layer is disposed in a peripheral region of an opening of the liquid supply port, the protective layer being disposed closer to the liquid supply port than the adhesiveness improving film is to the liquid supply port, and the liquid ejection chip and the head substrate are bonded to each other with an adhesive on a side of the second surface of the silicon substrate so that the liquid supply port communicates with the liquid introduction port, the adhesive being in contact with the protective layer and the adhesiveness improving film.