Location History:
- Saint Ismier, FR (2018 - 2020)
- St. Ismier, FR (2021 - 2024)
Company Filing History:
8 out of 757 
1 out of 999 
Years Active: 2018-2025
Title: Delia Ristoiu: Innovator in Semiconductor Technology
Introduction
Delia Ristoiu is a prominent inventor based in Saint Ismier, France, known for her significant contributions to semiconductor technology. With a total of eight patents to her name, she has made remarkable advancements in etching methods and cavity manufacturing processes.
Latest Patents
Among her latest patents is an innovative etching method that focuses on forming a cavity that traverses a stack of layers. This method includes a first step of non-selective etching followed by a second step of selective etching, which is vertically aligned with the first portion of the bottom layer that presents an excess thickness. Another notable patent involves the manufacturing of cavities in a substrate that consists of a first solid semiconductor region and a second semiconductor on insulator region. This process allows for the simultaneous formation of first and second cavities in both regions using a two-step etching process, resulting in a unique structure with a step at the level of the upper surface of the insulator.
Career Highlights
Delia has worked with notable companies in the semiconductor industry, including STMicroelectronics in Crolles and Rousset. Her work at these organizations has been instrumental in advancing semiconductor technologies and processes.
Collaborations
Delia has collaborated with esteemed colleagues such as Pierre Bar and Francois Leverd, contributing to a dynamic and innovative work environment.
Conclusion
Delia Ristoiu's contributions to the field of semiconductor technology through her patents and collaborations highlight her as a leading inventor in her domain. Her work continues to influence advancements in the industry.