N Hello everyone, Nakano from Japan Unix here.

Y I’m Yanaka from the tech team. Nice to meet you.

N Today’s theme is about Piezoelectric Element Soldering. Could you tell us where (piezoelectric elements) are specifically used?

Y Yes, for example, in the automotive industry, they are used in sonar sensors for distance measurement. They also play a crucial role in various fields such as inkjets in printers and medical devices.

N So, they are used in various aspects of life.

N First, let’s take a look at the video of soldering with a iron tip.
-Soldering Video-
Yes. You have seen the video of soldering with a soldering iron. This is the actual product that has been soldered. There are two soldering points, and they are done neatly.
Could you please tell us what you paid attention to during this soldering with a soldering iron?

Y The most important point is the phenomenon known as silver cracking. The piezoelectric elements are silver-plated, and due to the heat influence with the solder, it melts, which can lead to delamination or disconnection issues. Therefore, managing the time the soldering iron is applied and temperature control are very crucial.

N So, it’s important to properly manage the conditions.

Y Yes, exactly.

N Next, let’s also take a look at the video of laser soldering. Please.
Yes. Now that you’ve seen the video of laser soldering, here is the actual workpiece. Like the iron soldering, it’s also been soldered cleanly.
I would like to know about any precautions or characteristics of laser soldering.

Y Yes. Piezoelectric elements use materials different from typical substrates such as metal plates or ceramics. Therefore, a relatively high-power laser is required.
So, it’s important to be careful not to burn the lead wires or the silver plating during soldering.

N So, adjusting the laser power and ensuring that the parts do not burn are crucial measures.

Y Yes, exactly.

Y In soldering, adjusting the soldering conditions is a very important factor.
We will provide full support in these aspects, so you can be assured.

N Yanaka-san, you also handle experiments, equipment selection, and implementation support, right?

Y Yes, that’s correct. If you have any issues with soldering, please feel free to consult us anytime.

N Thank you, Yanaka-san, for the explanation today.

Y Thank you.

N Let’s meet again in the next video.
See you then.