Frank J Johnson

Title: Innovations by Frank J Johnson

Introduction

Frank J Johnson is a notable inventor based in Santa Cruz, California. He has made significant contributions to the field of semiconductor manufacturing, holding three patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is a method and apparatus for producing a strip of lead frames for microchips and other integrated circuit dies. This continuous manufacturing method involves silver spot plating prior to etching away unwanted portions of the lead frame substrate. The process utilizes a flexible substrate of a metal alloy, which is continuously fed from a reel, spot plated with silver, and coated with a photosensitive material. The exposed material is then developed chemically, etched in acid, and treated to remove any remaining unwanted material. The final product is dried, cut to predetermined lengths, and packaged for shipment.

Another significant patent is for a slitter machine used in manufacturing semiconductor devices. This machine is designed to slit a film sheet wound on a core to obtain desired widths for laminating onto metallic substrates. It features a main frame, notches for supporting the roll, a rotatable knife blade, and an air cylinder for pressing the blade into the rolled sheet. The machine is equipped with guide tracks to adjust the lateral position of the knife blade, ensuring precision in cutting.

Career Highlights

Frank J Johnson is currently associated with Amkor Electronics, Inc., where he continues to innovate and contribute to advancements in semiconductor technology. His work has been instrumental in improving manufacturing processes and enhancing the efficiency of semiconductor devices.

Conclusion

Frank J Johnson's contributions to the field of semiconductor manufacturing through his patents reflect his dedication to innovation and excellence. His work continues to influence the industry and pave the way for future advancements.