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

    Published 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. …”
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    Tesis
  2. 162

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

    Published 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. …”
    Get full text
    Tesis
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    Aproximación al ciberactivismo feminista en Latinoamérica en el siglo XXI by Pila Guzmán, Paola Viviana, Estrada Esparza, Olga Nelly

    Published 2023
    “…Based on a first theoretical approach to cyberactivism, the differences between the concepts of feminist cyberactivism and cyberfeminism were analyzed. From this point, the historical connections were located between this digital and network activism and the contemporary feminist movement. …”
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    Article
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    RESPONSABILIDAD FAMILIAR Y CONOCIMIENTOS SOBRE LA OSTEOPOROSIS: UN ESTUDIO EN GERONTOLOGÍA SOCIAL. by José Azoh Barry, José Azoh Barry José Azoh Barry

    Published 2002
    “…This took place in Guadalupe, Nuevo León (Mexico) duringSpring 2000. The findings point out a superficial knowledge of the disease and its risk factorsamong the family caretakers of the elderly. …”
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    Article
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