Patent Number: 7,784,916

Title: Micro-fluid ejection heads with multiple glass layers

Abstract: Methods for fabricating micro-fluid ejection heads and micro-fluid ejection heads are provided herein, such as those that use non-conventional substrates. One such micro-fluid ejection head includes a substrate having first and second glass layers disposed adjacent to a surface thereof and a plurality of fluid ejection actuators disposed adjacent to the second glass layer. The first glass layer is thicker than the second glass layer and the second glass layer has a surface roughness of no greater than about 75 .ANG. Ra.

Inventors: Cornell; Robert Wilson (Lexington, KY), Dixon; Michael John (Richmond, KY), Droege; Curtis Ray (Richmond, KY), Klemo; Elios (Lexington, KY), McKinley; Bryan Dale (Lexington, KY)

Assignee: Lexmark International, Inc.

International Classification: B41J 2/05 (20060101)

Expiration Date: 8/31/12018