Merlyn H Perkins

Title: Merlyn H Perkins: Innovator in Electron Beam Technology

Introduction

Merlyn H Perkins is a notable inventor based in Hopewell Junction, NY (US). He has made significant contributions to the field of electron beam technology, holding a total of 3 patents. His work focuses on improving the efficiency and accuracy of lithographic pattern writing systems.

Latest Patents

One of his latest patents is an "Electron beam writing method and system using large range deflection." This innovative system employs the writing of lithographic patterns with a shaped electron beam exposure system, which minimizes the time wasted by workpiece positional requirements. The writing field contains an array of sub-fields written in a raster sequence. The large width of the writing field provided by the VAIL system reduces the number of mechanical scans required to write the pattern on the workpiece, further reducing the time required for workpiece positioning. When patterns are superimposed over previously written patterns, registration is employed. This system includes a registration field confined to local areas on the workpiece, which is larger than the writing field, without requiring a change in focus and without requiring the mechanical system comprising the X-Y work table to change speed during the registration and reregistration of the various fields on a semiconductor wafer or mask. The registration field can be larger than the writing field because the quality requirements demanded from the shaped electron beam are less for detecting the locations of such registration marks at various locations on the wafer.

Another significant patent is the "Method and system for automatically correcting aberrations of a beam of charged particles." In this invention, the location of a beam of charged particles within a deflection field is determined by its orthogonal deflection voltages. With the location of the beam in the field, correction currents are supplied to a focus coil and to each of a pair of stigmator coils to correct for changes in focal length and astigmatism due to the beam being deflected away from the center of its deflection field.

Career Highlights

Merlyn H Perkins has had a distinguished career at the International Business Machines Corporation (IBM). His work has significantly advanced the capabilities of electron beam lithography, making it more efficient and precise.

Collaborations

Throughout his career, Perkins has collaborated with notable colleagues, including Hans C Pfeiffer and Samuel Kay Doran. These collaborations have contributed to the development of innovative technologies in