Patrick Lamey

Title: Innovations by Patrick Lamey in Thermal Ink Jet Technology

Introduction

Patrick Lamey is an accomplished inventor based in Manassas, VA (US). He has made significant contributions to the field of thermal ink jet technology, holding 2 patents that showcase his innovative approaches. His work primarily focuses on integrating drive/control devices with ink jet on-demand devices, enhancing the efficiency and functionality of thermal ink jet printers.

Latest Patents

Lamey's latest patents include a method to integrate thermal drop on demand ink jet devices and related pulse driver circuitry for chips used in thermal ink jet printers. This integrated printhead chip is designed by first fabricating the driver pulse circuitry through the last level of metallization on the substrate. A low-temperature (<400 C) CVD oxide is then deposited and planarized, ensuring a good thermal barrier between the pulse circuitry and the thermal inkjet devices. After planarization, the resistor material is deposited and patterned, followed by the creation of openings to the inputs and outputs of the pulse driver circuitry. Aluminum copper metallurgy is deposited and patterned to connect the resistor to the pulse driver output and define the heater resistor areas. Inorganic and organic barrier layers are applied and patterned to protect the resistor material and interconnecting metallurgy from the corrosive effects of the ink. After testing, ink holes are drilled, and the wafer is diced, with nozzle plates attached to the chips. This 'on chip' driver integration allows the pulse driver circuitry to be moved to the thermal ink jet printhead, offering advantages over other methods of ink jet/driver device integration without decreasing the dimensions of the respective devices.

Career Highlights

Patrick Lamey is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the field of thermal ink jet technology. His work has significantly impacted the efficiency and design of ink jet printers, making them more effective for various applications.

Collaborations

Lamey collaborates with Richard Kachmarik, contributing to advancements in their shared field of expertise. Their partnership has fostered innovative solutions and improvements in thermal ink jet technology.

Conclusion

Patrick Lamey's contributions to thermal ink jet technology through his patents and work at IBM highlight his role as a key innovator in the industry. His methods for integrating drive/control devices with ink jet technology continue to influence the development of more efficient printing