Exhibit 99.1

  David Henry Joins AMI Semiconductor as CFO; Henry Brings Wealth of
      Financial Experience in the Semiconductor Industry to AMIS

    POCATELLO, Idaho--(BUSINESS WIRE)--April 26, 2004--AMI
Semiconductor (Nasdaq:AMIS), a designer and manufacturer of
state-of-the-art integrated mixed-signal and structured digital
products for the automotive, medical and industrial sectors, today
announced that David A. Henry will join the company as chief financial
officer, effective May 1.
    Henry comes to AMIS from Fairchild Semiconductor International,
Inc. where he has served as vice president of finance - worldwide
operations. In that role, Henry has been responsible for all of the
financial operations for Fairchild's product divisions and
manufacturing plants. Previously, Henry was vice president, corporate
controller and chief accounting officer for Fairchild. Henry also
worked in a number of increasingly responsible financial roles for
National Semiconductor from 1988 until 1997, at which time Fairchild
was spun-off from National.
    "Dave is a great addition to AMI Semiconductor. With AMIS recently
becoming a publicly traded company, Dave's highly successful career
with Fairchild Semiconductor, his leadership in worldwide financial
management and his experience with strategic initiatives will help
take AMIS to new levels of success," stated Chris King, president and
CEO of AMI Semiconductor. "His knowledge and experience in the
industry and in the worldwide market will contribute immensely to our
future. I am thrilled that Dave is joining the AMIS team."
    Henry earned his MBA at Santa Clara University. He also earned his
bachelor's degree in Business Administration from the University of
California, Berkeley.
    Henry succeeds Mike Salvati as CFO for AMIS. Salvati has served in
that role on an interim basis since February 12.

    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 integrated mixed-signal products,
mixed-signal foundry services and structured digital products, AMIS is
committed to providing customers with the optimal value, quickest
time-to-market semiconductor solutions. Offering unparalleled
manufacturing flexibility and dedication to customer service, 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 United
States, Europe and the Asia Pacific region.

    CONTACT: AMI Semiconductor, Pocatello
             Jimmie Hutchens, 208-234-6732
             jimmie_hutchens@amis.com