US Patent Application 18032535. ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE simplified abstract

ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE

Organization Name

Hewlett-Packard Development Company, L.P.

Inventor(s)

Eric T. Martin of Corvallis OR (US)

James R. Przybyla of Corvallis OR (US)

ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18032535 titled 'ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE

Simplified Explanation

- The patent application describes an apparatus that includes a substrate with a fluid recirculation channel and a thinner membrane adjacent to the channel. - The apparatus also includes a component layer with a fluid ejection chamber that has a nozzle for ejecting fluid. - Fluid can enter the ejection chamber through an inlet port and be recirculated back to the recirculation channel through an outlet port. - The membrane has active circuit elements that control the ejection of fluid from the ejection chamber through the nozzle.

Original Abstract Submitted

According to examples, an apparatus may include a substrate having a fluid recirculation channel and a membrane adjacent to the fluid recirculation channel, in which the membrane is portion of the substrate having a smaller thickness than other portions of the substrate. The apparatus may also include a component layer, in which a fluid ejection chamber may be formed in the component layer. The fluid ejection chamber may include a nozzle and fluid may be received into the fluid ejection chamber through an inlet port and recirculated to the fluid recirculation channel through an outlet port. The apparatus may further include active circuit elements formed on the membrane, in which the active circuit elements may control ejection of fluid from the fluid ejection chamber through the nozzle.