Leiterplattenmontage

Wie halten oberflächenmontierte Komponenten der Hitze des Reflow-Lötens stand, während durchkontaktierte Komponenten dies nicht können??

One of the key points to answer your question is thermal stress.

When you apply heat to one pin of a device, there is a sudden and huge temperature difference between that point and the rest of the device. That difference is stress, and the result can be a material breakout.

In an oven, auf der anderen Seite, all the board is put under a controlled, gradual thermal rise. ALL the points of the device are at almost the same temperature, so there are no thermal stresses (or they are much smaller than) they were when you applied the soldering tool to ONE pin and the rest of the device is at room temperature.

Weiterlesen: SMT-Leiterplattenbaugruppe

#PCB Assembly #PCB Materials

Oliver Smith

Oliver ist ein erfahrener Elektronikingenieur mit Erfahrung im PCB-Design, Analoge Schaltungen, eingebettete Systeme, und Prototypenbau. Sein umfassendes Wissen umfasst die schematische Erfassung, Firmware-Codierung, Simulation, Layout, testen, und Fehlerbehebung. Oliver zeichnet sich durch die Umsetzung von Projekten vom Konzept bis zur Massenproduktion aus, wobei er sein Talent als Elektrodesigner und sein mechanisches Geschick einsetzt.

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