SEMI North America Advisory Board Welcomes New Member From SACHEM

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SEMI announced the election of a new member to the SEMI North America Advisory Board (NAAB), Rosemary Steen Hoffman, Chief Executive Officer, SACHEM, Inc., a premier supplier of high-purity, precision-based chemistries.

SEMIThe Board appointment took effect on April 14, 2025. Members serve a three-year term. The principal advocate for member companies located in North America, the NAAB provides guidance on SEMI Americas programs designed to advance their business interests and address significant challenges in the electronics manufacturing and design supply chain.

“We are thrilled to welcome Rosemary Steen Hoffman to the SEMI North America Advisory Board,” said Joe Stockunas, President of SEMI Americas. “With her exceptional leadership and over 30 years of experience in the global chemical industry, Rosemary brings a proven track record of driving innovation, growth, and operational excellence, offering valuable insight and a unique perspective to the NAAB.”

Prior to her role as CEO of SACHEM, Hoffman held key leadership positions in the organization, including Chief Operating Officer and Vice President for Sales and Marketing. She is a transformative leader known for building and inspiring high-performing teams while fostering a culture of innovation, accountability, and continuous improvement. Beyond her professional achievements, Hoffman is deeply committed to community service and philanthropy, currently serving on the Board of Directors for Ascension Seton Hospital and previously for Caritas in Austin. She holds an MBA from Anderson School of Business at UCLA and a B.S. in Chemical Engineering from Pennsylvania State University.