Exhibit 99.1

           Joseph Passarello Joins AMI Semiconductor as CFO


    POCATELLO, Idaho--(BUSINESS WIRE)--June 21, 2007--AMI
Semiconductor (NASDAQ:AMIS), a designer and manufacturer of
state-of-the-art mixed-signal and digital products for the automotive,
medical, industrial, and military/aerospace markets, today announced
the appointment of Joseph J. Passarello, to senior vice president and
chief financial officer, effective July 16, 2007.

    Mr. Passarello was chief financial officer of Therma-Wave, Inc.
from June 2005 to May 2007. Therma-Wave develops, manufactures,
markets, and services process control metrology systems used in the
manufacture of semiconductors, and recently became a KLA-Tencor family
of companies. Prior to becoming chief financial officer at
Therma-Wave, Mr. Passarello was vice president and controller of JDS
Uniphase from March 2002 to April 2005.

    "Joe is highly regarded in our industry and we are pleased to
welcome him to AMI Semiconductor," stated Chris King, president and
CEO of AMI Semiconductor. "Joe's capabilities and leadership will
bring us to the next level of financial performance."

    Mr. Passarello obtained his bachelor's degree in accounting from
St. Mary's College of California and his master's degree in business
administration from Santa Clara University.

    About AMI Semiconductor

    AMI Semiconductor (AMIS) is a leader in the design and manufacture
of silicon solutions for the real world. As a widely recognized
innovator in state-of-the-art mixed-signal and digital products, AMIS
is committed to providing customers in the automotive, medical,
industrial, mil/aero, and communication markets with the optimal
value, quickest time-to-market semiconductor solutions. AMI
Semiconductor operates globally with headquarters in Pocatello, Idaho,
European corporate offices in Oudenaarde, Belgium, and a network of
sales and design centers located in the key markets of the North
America, Europe and the Asia Pacific region. For more information,
please visit the AMIS Web site at www.amis.com.

    CONTACT: AMI Semiconductor
             Wade Olsen, 208-234-6045 (Investor Relations)
             wade_olsen@amis.com
             Tamera Drake, 208-234-6890 (Media Relations)
             tamera_drake@amis.com