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How Wet Bench Stations Are Tailored for Specific Manufacturing Process Requirements

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The fabrication of semiconductor wafers requires that an elaborate set of chemical etching, stripping and cleaning steps be followed in a precise procedure that can be consistently repeated. The semiconductor manufacturing process requires that the use of hydrofluoric acid and other chemicals which must precisely controlled and monitored. These high-tech processes are critically important to industries that fabricate semiconductors, medical equipment and photovoltaic cells. They require the use of custom-made wet benches designed to assist in the safe and precise control of corrosive chemicals at high temperatures.

Wet bench equipment

Modutek provides a full range of wet bench equipment to address the specialized needs of semiconductor manufacturing facilities and research centers. Wet bench stations can be tailor made according to the specific manufacturing process requirements of a customer.

Citric-nitric passivation wet benches are critical to the passivation of titanium and stainless-steel parts in various industries. Electro-polishing wet bench equipment is deployed in the medical device industry in the manufacture of precision steel, cobalt chrome and titanium components.

Multistage wet process fume hoods with circulation pumps are used in aerospace component manufacture, printed circuit board fabrication, and the semiconductor manufacturing industry. Modutek’s wet bench equipment for the semiconductor industry meets UL2360/FM4910 standards for fire and contamination safety. This enables fabricators to remain compliant with applicable environmental laws.

Titanium anodizing equipment, agitated immersion washers, in-line conveyor washers, spray cabinet washers and other precision equipment are an integral part of the semiconductor industry, as well. Modutek is an industry leader in the design, development and deployment of these and many other kinds of wet bench equipment.

The precision needed in manufacturing equipment

Sulfuric acid-peroxide is a powerful chemical that is critical to the cleaning processes applied to semiconductor wafers. Effective application of this chemical mixture is inherently unstable and requires constant rebalancing. The rebalancing and control is needed to maintain efficiency. The mixture needs to be constantly replenished with hydrogen peroxide at high temperatures, something that can be costly even in simple material costs. Modutek’s high-tech systems not only ensure the correct concentration levels, they also help fabricators contain material costs through the use of an exclusive chemical re-use system to contain material costs. Every part of the process is maintained and monitored by equipment that is software controlled.

The silicon nitride wet etching process is another semiconductor fabrication stage that requires a high level of precision and control. Silicon nitride is used to mask chemical etchings on silicon wafers. Once an etching successfully completes, the masking material requires removal. Typically, a mixture of phosphoric acid and the ionized water is applied. Precise control over the chemical mixture is needed, however, if only to prevent the risk of dangerous heat levels and explosions. Modutek’s wet bench station design addresses this challenge through the use of high-tech safety features and the use of precision software.

Modutek’s in-house design process

From manual to semi-automated and fully automated wet bench stations, Modutek’s products are designed and developed in-house right down to the software. From servo-controlled robots and automated equipment to low-cost manual stations, Modutek’s equipment covers the needs of the industries they serve. With their in house expertise and 35+ years of operation, the company is well equipped to meet and support the requirements of semiconductor manufacturers and research centers. Developing equipment that provides thorough and precise control of the manufacturing process is what sets Modutek apart from other semiconductor equipment manufacturers. Contact Modutek today at 866-803-1533 for a free consultation or quote on wet bench equipment that can be tailor made to support your specific manufacturing requirements.

 

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