Company Filing History:
Years Active: 2001
Title: John Z Pastalan: Innovator in Piezoelectric Technology
Introduction
John Z Pastalan is a notable inventor based in Hampton, NJ (US). He has made significant contributions to the field of piezoelectric technology, holding 2 patents that showcase his innovative approaches to device manufacturing.
Latest Patents
One of his latest patents is titled "Method for producing devices having piezoelectric films." This invention discloses a method for achieving improved piezoelectric films for use in resonator devices. The method is based on the recognition that the texture of a piezoelectric film is directly affected by the surface morphology of the underlying electrode. Additionally, the surface morphology of the electrode is influenced by the surface morphology of the underlying oxide layer or Bragg stack. The invention comprises a method of making a device that includes a piezoelectric film and electrode by controlling the deposition and surface roughness of the electrode and, optionally, the Bragg stack.
Another significant patent is "Selective etching of thin films." This invention allows for the removal of portions of a material of interest while leaving adjacent or underlying electrodes intact. The material is exposed to a plasma containing at least two halogen-containing gases. At least a portion of the material, such as a piezoelectric material, is etched by the plasma. This selective removal enables the device to have alternative or complex architecture while limiting the propagation of shear waves.
Career Highlights
John Z Pastalan is associated with Agere Systems Guardian Corporation, where he applies his expertise in piezoelectric technology. His work has contributed to advancements in the field, particularly in the development of resonator devices.
Collaborations
He has collaborated with notable coworkers, including John Eric Bower and George Endicott Rittenhouse, further enhancing the innovative environment in which he works.
Conclusion
John Z Pastalan's contributions to piezoelectric technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the development of advanced devices in the industry.