Krister Gumaelius

Title: Krister Gumaelius: Innovator in Semiconductor Technology

Introduction

Krister Gumaelius is a notable inventor based in Vaxholm, Sweden. He has made significant contributions to the field of semiconductor technology, particularly through his innovative patent related to bipolar junction transistors.

Latest Patents

Gumaelius holds a patent for a bipolar junction transistor with a stair profile. This semiconductor device and the method of forming a structure in a target substrate are designed to enhance the manufacturing process of semiconductor devices. The method involves providing a masking layer on the target substrate and creating a stair-like profile in the masking layer. The height of the steps in this profile is smaller than the thickness of the masking layer. Additionally, the method includes performing anisotropic etching of both the masking layer and the target substrate simultaneously, resulting in a structure with a stair-like profile in the target substrate. This innovative approach allows for the integration of different types of semiconductor materials within the device.

Career Highlights

Krister Gumaelius is associated with Fairchild Semiconductor Corporation, where he has applied his expertise in semiconductor technology. His work has contributed to advancements in the efficiency and functionality of semiconductor devices.

Conclusion

Krister Gumaelius is a prominent figure in the semiconductor industry, recognized for his innovative patent that enhances the manufacturing of bipolar junction transistors. His contributions continue to influence the field of semiconductor technology.