Resultados de búsqueda - ((estaae OR tttestaadas) OR ((est OR esteem) OR ((testeas OR pastes) OR (estos OR estado)))) point*

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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
  14. 34

    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
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    El valor de la cartera de clientes de empresas de telecomunicaciones en México (The value of customer portfolio for telecommunication companies in Mexico) por Saldaña, J., Palomo, M.

    Publicado 2006
    “…Nevertheless, only few companies have bothered to evaluate if their desirable individual customers are, from the risk stand point, are desirable collective customers based on the customers´ value change. …”
    Enlace del recurso
    Artículo
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    La identidad profesional a-critica e instrumental del maestro normalista por Treviño Villarreal, Alejandro Javier

    “…ABSTRACT Talking about the professional identity of teachers and normal teachers of Nuevo Leon, is a point of analysis and reflection on a historical reality lived in all the towns of our State. …”
    Enlace del recurso
    Otro

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