Friedrich Hapke

Title: Friedrich Hapke: Innovator in MOS Device Testing

Introduction

Friedrich Hapke is a notable inventor based in Hamburg, Germany. He has made significant contributions to the field of testing circuits for MOS devices. With a total of 3 patents to his name, his work has had a considerable impact on the industry.

Latest Patents

Hapke's latest patents include a test circuit for MOS devices and an MOS integrated test circuit using field-effect transistors. The test circuit for MOS devices is designed to include two inputs, where the first input responds to a test signal of opposite polarity to the supply voltage, and the second input responds to a test signal of the same polarity but of a substantially higher magnitude. This innovative design allows for substantial immunity to spurious voltage transients while enabling the test circuit to share common terminals with the circuits being tested. The MOS integrated test circuit arrangement features a circuit for rapidly testing various blocks of the circuit, utilizing three transistor-switch groups for effective testing.

Career Highlights

Friedrich Hapke is currently associated with U.S. Philips Corporation, where he continues to develop and refine his innovative testing solutions. His work has been instrumental in advancing the capabilities of MOS device testing.

Collaborations

Hapke has collaborated with Peter E. Draheim, contributing to the development of effective testing arrangements in the field of integrated circuits.

Conclusion

Friedrich Hapke's contributions to the field of MOS device testing through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and improve testing methodologies.