Aplicación Específica

Espectrometría de masas

los instrumentos de espectrometría de masas requieren soluciones de alto voltaje para los procesos de ionización, separación de masa y de detección que exigen alto desempeño junto con inversión de polaridad en soluciones personalizadas compactas. spellman ofrece una extensa cartera de soluciones estándar y personalizadas que proporcionan alto voltaje de desempeño de nivel de ppm a través de arquitectura de instrumentos. ofrecemos módulos discretos a través de suministros de salida múltiples integradas y complejas, con interfases analógicas y digitales. el extenso conocimiento de aplicaciones y las capacidades únicas de diseño de spellman permiten el diseño de productos rigurosos que atienden las demandas cada vez mayores de los fabricantes de espectrómetros de masas, ya sean de ondulación baja y micro descarga, coeficiente de temperatura ultra bajo o inversión de polaridad y tiempos de instalación rápidos. existen soluciones disponibles para "todo" el alto voltaje a través de time-of-flight (tof), maldi-tof, quadrapoles, icp, ion trap, lc y gc ms, y tipos de instrumentos de movilidad de iones. haga clic aquí para descargar nuestro folleto sobre espectrometría de masas.

Haz de electrones/iones de precisión

electron beam and focused ion beam applications, while quite different, require very specialized high voltage power supplies with similar performance characteristics. the most critical requirements include ultra-low output ripple, excellent regulation, high stability, low temperature coefficients and high accuracy. the task becomes even more challenging since typical e-beam and fib power supplies consist of a variety of ground based and floating outputs. spellman has unparalleled experience designing and building products that not only meet these demanding specifications, but that are robust and reliable for long term, trouble free operation. the spellman vs100 and fib series shown below are representative of the products that we offer for these unique applications. feel free to contact us to discuss custom requirements or solutions.

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Carga de capacitores

Abrazadera electrostática (E CHUCK)

in semiconductor and liquid crystal panel manufacturing processes, vacuum chucks and mechanical chuck systems have conventionally been used to secure the substrate for handling. however, due to the effects of adsorption, distortion and a requirement for improved reliability, chucks that utilize electrostatic force have been widely adopted in today’s generation of semi fab equipment to overcome these limitations. an electrostatic chuck consists of a platen with surface electrodes which are biased with high voltage to set up an electrostatic force between the platen and the wafer. two types of electrostatic chucks are available: the coulomb and johnsen-rahbek (j-r) types. these are distinguished by their dielectric characteristics and, therefore, the way the clamping force is generated. a coulomb chuck functions like a conventional dielectric capacitor. the j-r type has a large but finite resistance, so current flows through it and the substrate when the surfaces are in close contact and voltage is applied. charge accumulates at the interface between substrate and dielectric which provides the clamping force.. . in addition, different configurations of electrodes (or poles) on the chuck are used to get different characteristics. monopolar, bipolar (two poles) and multipolar chucks (including 6 phase hexapolar types) are available depending on the application. spellman can provide power supplies for the complete range of e-chucks with features that include: • high-voltage bipolar outputs (positive/negative), • output polarity reversal functions for easier wafer chucking/de-chucking, • capability to detect the state of the wafer by capacitance measurement (coulomb chucks) or current measurement (j-r chucks), • analogue and digital interfaces for easy integration into a variety of systems • high reliability, mechanical relay free designs. spellman offers extensive design knowledge and manufacturing capabilities, and so can provide a broad range of customized products to satisfy a variety of requirements. depending on the application this may also include options such as high voltage biasing/offset and r.f. filtering.

Equipo de alimentación de energía (PFE)

spellman high voltage is the leading independent supplier of power feed equipment to the telecom industry. our land-based, shipborne, and portable power feed equipment (pfe) is used to power submarine fiber optic cable repeaters for telecommunications shore stations, during cable laying and repair operations. land (pfe-hv and pfe-lv): 5kv up to 18kv systems are deployed around the globe depend on spellman's high reliability, redundancy and robust pfe systems for maximum uptime. systems are available that provide a full spectrum of continuous power for both short and long cable run needs. sea (pfe-sb): 6kv up to 20kv systems are installed on many of the major cable laying ships around the world, becoming the preferred choice of cable shipbuilders and owners. the latest generation of shipborne power feed equipment now features electronic polarity reversal. portable (pfe-p): 4kv and 6kv versions provides the consistent, reliable, and safe high voltage power in a compact footprint. the pfe-p incorporates the same advanced digital management system as spellman's shipborne pfe. haga clic aquí para obtener el folleto de pfe haga clic aquí para leer la próxima generación de equipo de suministro de potencia instalado en tierra o a bordo de barcos. videos informativos relacionados. si desea obtener más información sobre los desafíos de colocar cables de fibra óptica submarinos, consulte este video: cbs this morning 's "inside the installation of new undersea cable", (~ 5 min). las fuentes de alimentación de alto voltaje de spellman son un elemento crítico en un sistema de comunicaciones submarinas.