Bernard Greenstein

Title: The Innovations of Bernard Greenstein

Introduction

Bernard Greenstein is a notable inventor based in Glenview, IL (US), recognized for his contributions to the field of precision resistors. With a total of five patents to his name, Greenstein has made significant advancements in the design and functionality of electronic components. His work has had a lasting impact on the industry, particularly in the development of low noise and precision thick film resistors.

Latest Patents

One of Greenstein's latest patents is for a low noise precision resistor. This innovative device utilizes thick film deposits of resistive material that extend adjacent to conductive material. The conductive region is sliced into multiple spaced-apart conductive elements. Electrical paths through the resistive elements can be lengthened by laser trimming, allowing for very precise incremental resistances between pairs of conductive elements. Additionally, an increased range of resistivity can be achieved by utilizing a second deposited thick film region in contact with the conductive region. Laser trimming can also be applied to increase conductive path lengths in the second resistive element, providing a broader range of resistance values.

Another significant patent is for precision thick film elements. This invention features a deposited thick film conducting layer that is adjacent to and in contact with a deposited thick film resistive layer. A laser scribed line, approximately 2 mils wide, separates the conductive region into two parts and extends into the resistive layer. The resistor's value is determined by the extent to which the line penetrates the resistive layer. A plurality of thick film conducting elements can be created by depositing a continuously extending thick film conducting layer on a substrate, with laser scribed lines used to isolate various conducting elements.

Career Highlights

Throughout his career, Bernard Greenstein has worked with prominent companies such as Motorola Corporation and Beltone Electronics Corporation. His experience in these organizations has contributed to his expertise in the field of electronic components and resistive technologies.

Collaborations

Greenstein has collaborated with various professionals in his field, including his coworker James Mrozack, Jr. These collaborations have further enhanced his innovative capabilities and have led to the development of advanced technologies.

Conclusion

Bernard Greenstein's contributions to the field of precision resistors demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of electronic components and their applications, solidifying his reputation as a leading inventor in the industry.