How the IPA Vapor Dryer Improves Wafer Processing Results

how-the-ipa-vapor-dryer-improves-wafer-processing-results

Not every advancement in semiconductor fabrication produces results that are usable in industry. To be of value, advancements need to be consistently repeatable when used on an industrial scale. Modutek’s IPA vapor dryer falls into this category, helping semiconductor fabricators improve both yields and processing times.

Modutek’s IPA vapor dryers are custom-engineered with in-house experts working in partnership with a client’s technical staff. From a thorough understanding of a client’s manufacturing process, Modutek works to make sure their equipment is designed and tested to meet the requirements.

The Marangoni IPA Vapor Dryer Design

Silicon wafers require cleaning, rinsing and drying at certain stages of the fabrication process. The results need to be as close to perfection as possible, with no watermarks, and minimal particle contamination. In the past, these results were obtained through rapid spinning and heat drying. These simple methods no longer work with the latest high-density wafers, however. Not only is water hard to remove from complex shapes, drying without leaving watermarks is impossible.

Contamination from incorrect cleaning and drying can cause serious product malfunction and high failure rates. This is where drying by isopropyl alcohol comes into play. IPA drying by the vapor method, delivers wafers that are completely free of watermarks and with minimal contamination. Modutek’s IPA vapor drying system is both cost-effective, and ready for seamless integration into the standard wet bench process or free-standing design.

How the IPA Vapor Dryer Design Works

Modutek’s IPA vapor dryer design is unique in a number of ways. This design delivers high-quality results through serving IPA vapor at the upper reaches of the drying tank. This makes sure that vapor distribution is even. Since the surface tension of isopropyl alcohol is lower than that of water, such vapor serving introduces a gradient of surface tension where isopropyl alcohol meets with a layer of water on the wafer surface. With this type of drying effect, water quickly leaves the wafer surface, and leaves it completely dry and clean. Since the water does not actually evaporate, it leaves the watermarks behind. The drying process takes no longer than 15 minutes.

The Advantages of Modutek’s IPA Vapor Dryer

Modutek’s in house experts in IPA vapor dryer design work together with a clients’ technical team to design and create IPA dryers that specifically meet their application requirements. Clients are able to come to Modutek’s facility for testing to make sure that their equipment works as expected.

With extensive experience in the wafer processing industry, Modutek is fully able to provide top-notch equipment and customer support at every stage of the design process, during delivery and after the sale. With expertise in semiconductor processing equipment, Modutek is able to address every specific client need for this industry. Contact Modutek for free consultation on the equipment needed for your specific wafer manufacturing process.

 

 

 

How to Qualify Which Semiconductor Equipment Manufacturers Meet Your Requirements

how-to-qualify-which-semiconductor-equipment-manufacturers-meet-your-requirementsThere are a number of things to keep in mind when you review which supplier to use from a list of semiconductor equipment manufacturers. From the ability of a manufacturer to customize solutions to meet specific client needs, to company reputation, the quality of the equipment sold, and after-sales support, there is a lot to consider. Only after you create a shortlist of potential companies to work with should you consider pricing and other minor details.

The Customization Question

Whether the need is to upgrade lines or replace old equipment with new machines, every semiconductor foundry or research facility is different, and comes with very specific requirements. Often, equipment newly purchased needs to be able to interface with systems already in place, and at other times, space or system size concerns override all other areas of consideration.

Equipment may also need to be internally customized with specific feature additions in order to be able to deliver on client requirements. Equipment manufacturers need to provide extensive experience and expertise with such customizations. Before a specific semiconductor equipment manufacturer can be chosen, they need to be able to demonstrate that they are able to work with clients, and to supply systems that are customized to their needs.

Reliability of Equipment

Once equipment has been purchased and set up, it needs to stay online for long stretches of time with minimal downtime. The best way to determine if a manufacturer is able to supply equipment of such description, is to contact references and study reliability statistics. Suppliers should be asked to furnish detailed information on scheduled downtime requirements, and logbooks obtained from actual installations.

After-Sales Support

Equipment warranties and support capabilities are the last item on the list to look at before a contract is signed with a selected supplier. Warranty policies should be simple and straightforward, and yet be comprehensive in describing what’s covered. All new equipment should typically come with at least a one year warranty.

It’s also important to check on the strength of every company’s service department. The most generous warranty policy would not be of much use if there were few personnel able to deliver on it. If there are third-party service providers that are on call, rather than an in-house department, it might be a warning sign that the manufacturer is not well-equipped to deliver a quality after-sales experience. Since third-party service providers usually deal with products from multiple companies, they are not likely to be as expert in their fields as in-house personnel. The best way in which to check on a company’s service ability is to simply call with a question prior to purchase.

Use a Supplier with a Proven Track Record

Finding the right equipment supplier is a vital step in the set-up of a semiconductor manufacturing facility or research center. The equipment from a supplier will affect future productivity, and quality of output. Since many suppliers have come and gone over the years look for one that has a proven track record that has been around for awhile. In addition the systems and equipment they sell should be continually improved to keep up with the latest technology and allow for easy upgrades.

Modutek’s Experience, Expertise and Longevity

Modutek has over 35 years of experience as a semiconductor equipment manufacturer, and has continually operated during that time to improve their equipment and address the needs of many clients. Not only does Modutek design and assemble their own equipment, all their software is designed in-house as well. They provide expert support through its own employees, rather than though agreements with third parties. In addition Modutek is committed to complete customer satisfaction, and has a record that shows it. Contact Modutek for a free quote or consultation to discuss your specific semiconductor manufacturing equipment requirements.