PCB Assembly

How do surface mount components withstand heat of reflow while through hole components can not?

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, on the other hand, 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.

Read More: SMT PCB Assembly

#PCB Assembly  #PCB Materials

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Recent Posts

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 week 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…

2 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…

2 months ago

A Comprehensive Guide to Decoupling Capacitors

The electronic devices we use are constantly changing and upgrading. They are getting smaller and more functional,…

2 months ago

PCB Tombstone: What Is It and How to Avoid It?

PCB assembly is a highly complicated process, in which accuracy is always of the essence. Even…

2 months ago

Top 10 Common PCB Design Mistakes and How to Avoid Them

It is important to ensure that a PCB design is reliable because any design mistake,…

3 months ago