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US$ 120.8 million (2013) [1] Net income. US$ 57.3 million (2013) [1] Parent. Merck KGaA. Website. www.azem.com. AZ Electronic Materials is a specialty chemicals company. On 2 May 2014, Merck KGaA announced the successful acquisition of AZ Electronic Materials.
Not to be confused with Photoresistor. A photoresist (also known simply as a resist) is a light-sensitive material used in several processes, such as photolithography and photoengraving, to form a patterned coating on a surface. This process is crucial in the electronics industry. [1]
Chemistry of photolithography. A gold and aluminum sputtered solar cell manufactured from a <100> p-type silicon wafer at the Cal Poly San Luis Obispo Microfab clean room. Photolithography is a process in removing select portions of thin films used in microfabrication. Microfabrication is the production of parts on the micro- and nano- scale ...
Photolithography. Photolithography (also known as optical lithography) is a process used in the manufacturing of integrated circuits. It involves using light to transfer a pattern onto a substrate, typically a silicon wafer. The process begins with a photosensitive material, called a photoresist, being applied to the substrate.
SU-8 photoresist. SU-8 is a commonly used epoxy -based negative photoresist. Negative refers to a photoresist whereby the parts exposed to UV become cross-linked, while the remainder of the film remains soluble and can be washed away during development. As shown in the structural diagram, SU-8 derives its name from the presence of 8 epoxy groups.
Clariant. Clariant AG is a Swiss multinational speciality chemical company, formed in 1995 as a spin-off from Sandoz. Headquartered in Muttenz, Switzerland, [5] the public company encompasses 68 subsidiaries in 36 countries (2023). Major manufacturing sites are located in Europe, North America, South America, China, and India.
Upon exposure to light, DNQ converts to a derivative that is susceptible to etching. In this way, DNQ has become an important reagent in photoresist technology in the semiconductor industry. [1] Diazonaphthoquinone sulfonic acid esters are components of common photoresist materials. Such photoresists are used in the manufacture of semiconductors.
In semiconductor manufacturing plasma ashing is the process of removing the photoresist (light sensitive coating) from an etched wafer. Using a plasma source, a monatomic (single atom) substance known as a reactive species is generated. Oxygen or fluorine are the most common reactive species. Other gases used are N2/H2 where the H2 portion is 2 ...