Lexmark International, Inc.

Jeanne M Saldanha Singh

Paul Timothy Spivey

James M Mrvos

Girish Shivaji Patil

Brian Christopher Hart

Jason Todd Vanderpool

John William Krawczyk

Karthik Vaideeswaran

Christopher John Money

Mary Claire Smoot

Kin Ming Kwan

Jon Brock Whitney

Jonathan H Laurer

Ganesh Vivayak Phatak

James Andrew Kerr

A method of etching a semiconductor substrate. The method includes the steps of applying a photoresist etch mask layer to a device surface of the substrate. A select first area of the photoresist etch mask is masked, imaged and developed. A select second area of the photoresist etch mask layer is irradiated to assist in post etch stripping of the etch mask layer from the select second area. The substrate is etched to form fluid supply slots through a thickness of the substrate. At least the select second area of the etch mask layer is removed from the substrate, whereby mask layer residue formed from the select second area of the etch mask layer is significantly reduced.

Method for making a micro-fluid ejection device

A progressive stencil printing system and method for applying encapsulant onto an inkjet printhead body is described. The system relates to a continuous stencil printing apparatus that can print encapsulant on different types of inkjet printhead bodies and clean the stencil during production.

Progressive stencil printing

A stencil printed encapsulant material is provided for use in protecting electrical components in thermal ink jet printhead cartridges. A method of applying an encapsulant material to an ink jet print cartridge by stencil printing is also provided. The method includes providing a stencil having at least one aperture, providing an ink jet cartridge and stencil printing an encapsulant material onto a portion of the ink jet print cartridge thereby forming a layer of encapsulant material to protect electrical components or other printhead components.

Method of applying an encapsulant material to an ink jet printhead

A printing cartridge including a body, the body having a base and a tower defining a passageway. The tower is made from a first polymer material, and has a proximal end and a distal end. The proximal end is attached to the base. The distal end includes a surface. A frame, made of a second polymer material different from the first polymer material, is attached to the surface of the tower. A filter is attached to the frame and positioned to extend over the passageway.

Printing cartridge having a filter tower assembly and process for forming the same

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Lexington, KY, United States of America

Jeanne M Saldanha Singh