Company Filing History:
Years Active: 1983
Title: Innovations by Wolfgang Stein in Multilayer Printed Circuit Board Technology
Introduction
Wolfgang Stein is a notable inventor based in Freudenstadt, Germany. He has made significant contributions to the field of multilayer printed circuit board technology. With a total of 2 patents, his work has advanced the methods and devices used in the production of these essential components.
Latest Patents
Stein's latest patents include a method and device for producing multilayer printed circuit boards. This innovative method involves applying heat and pressure to a stack of printed circuit boards and interposed layers of thermosetting plastic. The multilayer stack is heated in a first press to a curing temperature above the flux point of the bonding layers. It is then precooled under continued pressure to a transfer temperature below the flux point and transferred to a second press, where it is aftercooled under pressure to ambient temperature. The press installation includes two independently operating multi-stage presses in a common press frame, with the plates of the press stages horizontally aligned in the open position of the two presses.
Another significant patent is a device for controlling a heated panel press for the assembly of multilayer stacks of printed circuit boards. This device facilitates the switchover from a contact pressure mode to a curing pressure mode. It consists of a displacement transducer that measures the decrease in stack height in terms of displacement pulses, along with a pulse counter and count comparator. This system produces a switchover signal at a predetermined threshold count, reflecting the attainment of the flux point in the bonding layer resin.
Career Highlights
Wolfgang Stein is currently associated with Robert Burkle GmbH & Co., where he continues to innovate in the field of printed circuit board technology. His expertise and inventions have positioned him as a key figure in this industry.
Collaborations
Stein has collaborated with notable coworkers such as Hans Bohn and Peter Bernsau, contributing to the advancement of technology in their field.
Conclusion
Wolfgang Stein's contributions to multilayer printed circuit board technology through his patents and career at Robert Burkle GmbH & Co. highlight his importance as an inventor. His innovative methods and devices continue to influence the industry significantly.