Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


RTS (Ramp-to-Spike) and RSS (Ramp-soak-spike)


Sam

#31195

RTS (Ramp-to-Spike) and RSS (Ramp-soak-spike) | 2 November, 2004

we are using solder paste WS609 and OM5100.Relow oven: forced convection type. For WS609 and OM5100, straight ramp up profile is suitable for low to medium thermal mass assemblies and preheating may be required for high thermal mass assemblies.

How to define low, medium and high thermal mass? Thermal mass or water-soluble/no-clean is the main key to decide RTS or RSS?

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RDR

#31222

RTS (Ramp-to-Spike) and RSS (Ramp-soak-spike) | 3 November, 2004

Sam, are you asking or telling us these things?

russ

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Sam

#31227

RTS (Ramp-to-Spike) and RSS (Ramp-soak-spike) | 3 November, 2004

i'm asking that how should we choose between RTS should be used in my process or RSS?

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#31231

RTS (Ramp-to-Spike) and RSS (Ramp-soak-spike) | 4 November, 2004

Solder Paste Inspection