How it started
1949 to 1980: Founding years and entry into semiconductor industry
On April 1, 1949, then 47-year-old Karl Süss founded Karl Süss KG and, as a sales representative for Bavaria, took over the distribution of optical devices (microscopes, cameras, and laboratory equipment) from Ernst Leitz GmbH. With increasing technical expertise, the company evolved from a pure sales company with five employees to a contract manufacturer.
In 1963, Süss received a commission from Siemens to develop a simple photolithography device. This commission involved small measuring tables with stereo microscopes bonded together. For Siemens, Süss developed the prototype of the first mask aligner MJB3, a mask alignment exposure tool for photolithography. This commission marked the company’s first step into the semiconductor industry, which later became its core market. In 1968, the company moved its production and 30 employees to Garching.
With the development of the semiconductor industry, Süss began manufacturing diamond scribers and spin coaters. In 1974, the first mask aligner enabling micrometer-precise double-sided exposure was developed at Süss. The company, whose name already stood for photolithography in the research and development sector, now also focused on customers from the manufacturing industry. In 1975, the MJB55 became the first mask aligner developed for mass production.
From Wikipedia’s article on Suss Microtec, shared under CC BY-SA 4.0.2