CML Microsystems Plc is rated 3 out of 5 in the category semiconductors. Read and write reviews about CML Microsystems Plc. CML Microsystems Plc consists of six operating subsidiaries located in the UK, Germany, United States, Singapore and Taiwan. These subsidiaries are dedicated to the design, manufacture and world-wide marketing of a broad range of semiconductor products, primarily for industrial and commercial applications within global communications and data storage markets.