公开(公告)号：US20150049141A1

公开(公告)日：2015-02-19

申请号：US14376099

申请日：2012-04-27

申请人： Brian M. Taff ,  Michael Hager ,  Jason J. Oak

发明人： Brian M. Taff ,  Michael Hager ,  Jason J. Oak

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/1404 ,  B41J2002/14403 ,  B41J2002/14467 ,  B41J2202/12

摘要： In an embodiment, a fluid ejection device includes a substrate with a fluid slot, and a chamber layer over the substrate that defines a firing chamber and a fluidic channel extending through the firing chamber and in fluid communication with the slot at first and second ends. The device includes a tophat layer formed as a two-layer stack over the chamber layer, and a nozzle bore over the firing chamber that comprises a greater cavity formed in a first layer of the stack and a lesser cavity formed in a second layer of the stack, the greater cavity encompasses a larger volume than the lesser cavity.

摘要翻译： 在一个实施例中，流体喷射装置包括具有流体槽的基板，以及在基板上的限定燃烧室的腔层和延伸穿过燃烧室的流体通道，并且在第一和第二端处与槽流体连通。 该装置包括在室层上形成为两层堆叠的粘土层，并且在燃烧室上方的喷嘴孔，其包括形成在堆叠的第一层中的较大空腔和形成在第二层中的较小空腔 堆叠，较大的空腔包含比较小空腔更大的体积。