February, 2020


www.us- tech.com


Page 125 ViscoTec Dispenses Highly Viscous Abrasive Pastes


Töging a. Inn, Germany — ViscoTec has launched its vipro-HEAD print head, which dispenses mate- rials that are difficult to process, such as high-per- formance ceramics, and metal or copper pastes. This new solution creates exact line widths with high repeatability, opening up new applications for defined geometries. Depending on particle size, solids content and


material composition, the single-component vipro- HEAD can achieve fine layer thicknesses up to 100 µm, especially when dispensing highly viscous pastes. The properties of the layer depend on the thickness of the dosing needle used. Materials with viscosities of up to 500,000 mPa or more can also be processed precisely with the print head. The highly viscous abrasive pastes are applied


using the endless piston principle. The pressure- tight displacement system used in the vipro-HEAD allows for precision. In a self-sealing system of rotor and stator, the rotor rotates in a con- trolled manner. As a result, the mate- rials are conveyed through their dis- placement in the stator. By reversing the direction of rotation, the material is retracted, resulting in a clean mate- rial thread break. With high quality standards, the


SCS Develops Halogen-Free Parylene Coating


Indianapolis, IN — Specialty Coating Systems (SCS) is now offering its ParyFree®, a halogen-free variant of Parylene. SCS developed ParyFree in support of global initiatives that continue to drive toward the elimina- tion of halogens in electronics. Like other commercially-avail-


able Parylene variants, ParyFree is applied through a vapor deposition process that results in an ultra-thin, uniform, pinhole-free conformal coat- ing. The thin film forms at a molecular level to fully encapsulate components and devices, offering complete protec- tion and increased reliability of intri- cate, complex electronic devices. To verify its efficacy as a halo-


gen-free material, SCS ParyFree coatings were tested in accordance with BS EN 14582:2007 at an inde- pendent testing facility. The results show that there are no detectable levels of chlorine, bromine, fluorine, or iodine in ParyFree coatings, vali- dating the coating’s use in halogen- free applications. Available


exclusively at


Specialty Coating Systems, ParyFree coating offers manufacturers the same host of beneficial properties that they have come to expect from the Parylene family, but with improved barrier properties over tra- ditional halogen-free variants. In addition, SCS ParyFree-coated elec- tronics have been shown to meet IPX7 and IPX8 test requirements, demonstrating their usefulness to provide waterproof protection to elec-


tronic devices and components. Contact: Specialty Coating


Systems, 7645 Woodland Drive,


Indianapolis, IN 46278 % 317-472-1290 E-mail: cgillespie@scscoatings.com Web: www.scscoatings.com


See at IPC APEX, Booth 2913, and ATX/MD&M West, Booth 3131


See at IPC APEX, Booth 3554


Component printed with the vipro-HEAD print head.


system can dispense materials that contain parti- cles of silicon carbide or aluminum oxide. The cur- ing of the materials can be done by UV, heat, humidity, or a combination of these. The vipro-HEAD can be used in many indus-


trial sectors and is low maintenance, which enables the long-term dispensing of highly viscous abrasive pastes without issue. One- and two-com- ponent materials can be dispensing in 3D. Upon request, the head can be equipped with sensors for


greater quality control. Contact: ViscoTec Pumpen- u. Dosiertechnik


GmbH, Amperstrasse 13, D-84513, Töging a. Inn, Germany % +49-8631-9274 E-mail: melanie.hintereder@viscotec.de Web: www.viscotec.de


See at IPC APEX, Booth 526, and ATX/MD&M West, Booth 3364


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