AMI Semiconductor

AMI Semiconductor (AMIS) was a leading designer and manufacturer of mixed-signal semiconductor solutions, with a specialized focus on the healthcare and medical device sectors. The company was a primary provider of custom Application Specific Integrated Circuits (ASICs) used in critical life-science applications, including implantable pacemakers, cardiac defibrillators, and high-end hearing aids. Their expertise in low-power, high-precision analog and digital circuitry made them an essential partner for medical device original equipment manufacturers (OEMs). Headquartered in Pocatello, Idaho, the company operated globally until its acquisition by ON Semiconductor in 2008. Today, the AMIS legacy continues as a core component of onsemi's medical and industrial business units.