Knut K Najmann

Title: Knut K. Najmann: Semiconductor Packaging and VLSI Wiring Innovations

Introduction

Knut K. Najmann is an inventor associated with Gärtringen, Germany, and International Business Machines Corporation. His patent work includes innovations in semiconductor packaging, signal distribution, and wiring systems for very-large-scale integration (VLSI). He is credited with 12 patents.

Latest Patents

Input Signal Redriver for Semiconductor Modules. This invention describes a semiconductor packaging subassembly in which redriver circuits receive common input signals and provide corresponding outputs to multiple chips. The preferred embodiment focuses on a multi-module memory arrangement, redriving signals such as CAS, RAS, write, and address inputs.

Integrated Wiring System for VLSI. This design places VLSI chips in openings within a semiconductor interconnection wafer supported by a carrier. The wafer incorporates multilevel wiring and circuit components, while silicon contact chips and needle-like structures provide electrical connections. The needle-like contacts are designed to better withstand shear strain than conventional C-4 joints, allowing a greater number of chip pads. The system also describes power distribution through conductive planes and rails, with an additional wiring wafer available when needed.

Career Highlights

Najmann’s listed inventions address challenges in connecting and powering semiconductor modules and VLSI chips. His work at IBM reflects an emphasis on packaging structures that support dense interconnections and reliable signal distribution.

Collaborations

Wilfried Klein and Klaus Heuber are identified as Najmann’s coworkers. The available information does not specify their roles in the patents described here.

Conclusion

Knut K. Najmann’s patent portfolio highlights semiconductor packaging and interconnection approaches designed to improve signal delivery, connection density, and power distribution.