At a glance
| Booth | T9112 |
| Country | SG |
| Website | www.dusemund.com |
Company profile
Dusemund Pte Ltd was set up in July 2003 and provides chemical-technical consultancy for semiconductor manufacturing, including wet processes, chemical distribution systems, and high-purity materials. Its consultancy scope also covers materials and analytical methods, especially for high-purity chemicals, semiconductor manufacturing, and flat-panel-display industries. The company combines chemical-technical know-how with specialty products from selected European high-technology companies for customers in Asia and provides application support for those products. Its main products include chemical-withdrawal systems for high-purity chemicals and wafer-handling systems from AS Strömungstechnik GmbH in Germany. Dusemund Pte Ltd is the representative and exclusive distribution partner for AS Strömungstechnik GmbH in Asia, and the companies jointly develop customized solutions for specific applications. The company serves both SMEs and multinational companies in Asia with chemical-withdrawal systems. Its service menu includes Chemical-Technical Consultancy, Chemical Dispense & Blending Systems, Wet Chemical Process work for Semiconductor, PV & FPD, Trouble Shooting, Application Support, and Training. A consultancy milestone listed from 2005 to recent years is chemical-technical consultancy for MABAT Systems in Israel, including chemical-dispense-system design, material knowledge, commissioning, and maintenance of MABAT SDI systems in Asia-Pacific. Service references in Singapore include Bedok New Water, Hyflux, Micron, Seraya Power Plant, Siltronic, SSMC, and Sungei Tampines. Overseas project references include a US Naval Base in Yokosuka, Japan in March 2008; an Exxon-Mobile refinery in Adelaide, Australia in October 2008; Penneshaw on Kangaroo Island, Australia in November 2009; and a KENYA Water Plant in Chinchilla, Australia in May 2013. Additional references include HMEL in Bathinda, India in November 2013; Al Dur Water Plant in Bahrain in November 2013; Sohar II & Barka III in Oman in August 2014; SIPC in Sohar, Oman in April 2015; and RKB refinery in Leuna, Germany in July 2015. Training activities include chemical-safety training for M+W Zander in Singapore and JULPHAR in the UAE, plus on-site analytical-method training for KINETICS. The company lists Patent PCT/IB2011/050091 as issued on January 10, 2011. Its AS QC2 chemical-withdrawal QC-system is described through a 20-year record in semiconductor and photovoltaic applications across Asia, especially Singapore, Malaysia, Taiwan, and mainland China. Dusemund Pte Ltd is also identified as a local distributor for PC Cell of Germany in Singapore and Malaysia. The company’s technical-publication record includes work on selective fluoride recognition with ferroceneboronic acid, selective molecular recognition of disaccharides at an air-water interface, conducting-polymer films measured with a fast electrochemical quartz crystal microbalance, ion-exchange properties of conducting polypyrrole films, visual sensing of fluoride ions and saccharides, and organic impurities in semiconductor-grade hydrogen peroxide. Its patent record includes a pressurized system for conveying liquids without pulsing that can be used for highly pure liquid chemicals in the semiconductor industry, issued as PCT/EP1999/009408 on December 2, 1999. Another patent, PCT/EP1998/002035 issued October 29, 1998, covers a chemicals-supply system that enables solid-containing suspensions used for wafer polishing or semiconductor manufacture to be prepared directly at the utilization site. Patent PCT/EP1998/002209, also issued October 29, 1998, covers buffer systems for suspensions used in chemical-mechanical polishing, including high-pH suspensions from 9,5 to 13 for polishing silicon and metal surfaces of semiconductor wafers. Patent PCT/EP2001/003584, issued March 29, 2001, covers chromatographic purification of hydrogen-peroxide solutions to produce high-purity solutions for semiconductor technology. Patent PCT/IB2011/050091 concerns in-situ measurement of semiconductor-wafer thickness during thinning in a wet-etching unit, using coherent light, a contact-free measuring head, a spectrometer, a beam splitter, and an evaluation unit. For liquid-chemical handling, the QC fast-connect system is characterized by high safety, quick installation and easy use, and is intended for high-purity chemicals, corrosive chemicals, and flammable solvents. Its modified dispense-head options include a horizontal liquid outlet connection, a dispense head with an inbuilt diaphragm pump, and a dispense head with turn-cock shut-off for degassing chemicals, for semiconductor, photovoltaic, and equipment-manufacturer requirements. The QC quick-connect system uses maintenance-free high-performance plastics and includes one dip tube together with a dispense head carrying a patented coding disk to avoid false hook-ups; it supports common powered pumps and containers of 10–1000 litres and is available with high-flow solutions.
Exhibits
The QC Chemical Withdrawal System is a precision tool made of high-purity plastic from certified companies. It includes a fast-connecting plug-in connector and an adapter system that can simultaneously support venting and dispensing or venting and filling in vertical as well as horizontal arrangements. The QC-System is designed for pump systems and is organized as a modular system. Its liquid-chemical coupling design emphasizes high safety, quick installation, ease of use, and handling of high-purity, corrosive, and flammable chemicals. Modified dispense heads address semiconductor, photovoltaic, and equipment-manufacturer applications through options such as a horizontal liquid outlet connection, an inbuilt diaphragm pump, and turn-cock shut-off for degassing chemicals. The system is built from maintenance-free high-performance plastic materials and combines a dip tube with a dispense head carrying a patented coding disk to avoid false hook-ups. It can be used with common pump systems for containers from 10-1000 Liter and is also offered in special high-flow configurations. QC2 for Robotic Control uses a QC2 dispense head that can be handled by a robot for highly toxic chemicals. The QC-3 higher-flow system uses two turncock’s to combine dispensing and recirculation in one head through one dip tube. A QC3 3 Ports System is also described for filling and dispensing with one head and one dip tube. A separate high-flow QC-System specification reaches up to 150L/min and uses a patented key-code system. PCCell equipment supports professional electrodialysis research and development, laboratory production, pilot-scale production, and small industrial-sized electrodialyzers. The offering includes PFA tubing inside PVC hose with kink-free Flaretek® connections at both ends, with conductive PVC also available for solvents. The higher-flow QC-3 configuration again combines dispensing and recirculation through one head and one dip tube using two turncocks. The QC-System range also includes high-purity-plastic precision tools, simultaneous venting and dispensing or filling, special high-flow solutions, and a patented coding approach for preventing incorrect connections. Its applications include Wet Chemical Process work for Semiconductor, PV & FPD, with dispense-head variations developed around liquid-chemical handling requirements.
Capabilities and products
- chemical-technical consultancy for semiconductor wet processes
- chemical dispense and blending systems
- wet chemical process services for semiconductor, PV and FPD
- high-purity chemical withdrawal system supply and application support
- QC liquid-chemical quick-connect system supply
- QC chemical withdrawal system for 10–1000 Liter containers
- QC2 robotic dispense head for highly toxic chemicals
- QC3 combined dispensing and recirculation system
- high-flow QC system up to 150L/min
- PCCell electrodialysis equipment supply
- supply of Flaretek® connection assemblies for PFA tubing and PVC hose