Inkjet printer head and method of fabricating the same

An inkjet printer head comprising:

• a semiconductor wafer having an opening extending therethrough, said opening defining a nozzle for ejecting ink and including a hemispherical cavity that forms a hemispherical portion of the nozzle;
• an ink cartridge disposed on one side of said semiconductor wafer and communicating with the nozzle of said semiconductor wafer so that ink is supplied from said ink cartridge to the nozzle;
• a supporting layer interposed between said ink cartridge and said semiconductor wafer, the supporting layer having an opening located over the hemispherical portion of said nozzle;
• and
• a patterned resistor interposed between said supporting layer and said ink cartridge and disposed over said nozzle.

A method of fabricating an inkjet printer head, comprising:

• providing an ink ejection unit having an opening therethrough on a semiconductor wafer, whereby the opening exposes the top surface of the semiconductor wafer;
• etching the semiconductor wafer at the exposed top surface thereof to form an opening in said wafer, the opening constituting a nozzle through which ink is to be injected by the printer head;
• and
• attaching an ink cartridge to the semiconductor wafer over the top surface thereof in order to supply ink to the nozzle.