PCB Tasarımı

PCB'deki kurşunsuz lehim bağlantılarındaki siyah noktalar nelerdir??

Those dark splotches may be leftovers from the resin-based flux. No-clean fluxes are often made out of water-soluble resins (vs rosin) and during heating, most of it will evaporate away.

Pay attention to soldering temperatures. Sn96.5/Ag3.0/Cu0.5 solder’s liquidus is 217 °C. Soldering at high temperatures you have been using can potentially damage components, has been weakening the glue under every pad you solder (the copper is glued to the FR4), producing significantly more hazardous fumes, something that is already more hazardous with lead-free solders, and generally does nothing good.

As far as I know, it should not have a meaningful impact on the joint, but if you want to avoid this, I suggest lowering your iron temperature (and possibly getting a new tip and/or iron depending, so soldering is effective at said lower temperature), though this may not totally resolve the issue.

Devamını oku: PCB Prototipi

#PCB Düzeneği #PCB Tasarımı

Oliver Smith

Oliver, PCB tasarımı konusunda yetenekli deneyimli bir elektronik mühendisidir, analog devreler, gömülü sistemler, ve prototipleme. Derin bilgisi şematik yakalamaya kadar uzanıyor, cihaz yazılımı kodlaması, simülasyon, Yerleşim, test yapmak, ve sorun giderme. Oliver, elektrik tasarımı yeteneklerini ve mekanik yeteneğini kullanarak projeleri konsept aşamasından seri üretime geçirme konusunda uzmandır.

yakın zamanda Gönderilenler

BGA Reballing: An Essential Process in Electronics Repair and Maintenance

BGA reballing emerges as a critical repair technique for modern electronic devices. Şu günlerde, elektronik aletler…

1 week ago

What Are PCB Stiffeners? Exploring Their Types, Uses, and Thicknesses

Do you know what PCB stiffeners are? They are widely used in flex and rigid-flex

3 weeks ago

Why PCB Warpage Happens and How You Can Prevent It?

In the PCB manufacturing process, PCB warpage is a common problem that manufacturers would encounter.

1 month ago

What Is a PCB Netlist? Bilmeniz Gereken Her Şey Burada

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

2 months 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

2 months ago

7 Critical Techniques to Improve PCB Thermal Management

Şu günlerde, electronic products are both compact and lightweight while performing a variety of functions. Bu…

2 months ago