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.

kürzliche Posts

What Is a PCB Netlist? Alles, was Sie wissen müssen, finden Sie hier

In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.

4 days ago

What Is Solder Wetting and How to Prevent Poor Wetting?

Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and

3 weeks ago

7 Critical Techniques to Improve PCB Thermal Management

Heutzutage, electronic products are both compact and lightweight while performing a variety of functions. Diese…

4 weeks ago

What Is BGA on a PCB? A Complete Guide to Ball Grid Array Technology

As technology continues to advance in the electronics industry, packaging remains one of the key

1 month ago

How to Create a PCB Drawing: A Step-by-Step Guide for Beginners

Bringing your electronic ideas to life begins with PCB drawing, which is the process of

3 months ago

8 Leading PCB Design Software: A Comprehensive Comparison

Printed Circuit Board design is one of the most significant processes in electronics production. Deciding

3 months ago