SDE produces printed circuit boards for class 3 level products to various companies. SDE makes use of a very special technique called hand soldering. Hand-soldering techniques require a great deal of skill to use on what is known as fine-pitch soldering. SDE makes use of the best equipment and tools and strives to deliver the best quality.
Currently, mass-production printed circuit boards (PCBs) soldered through hand soldering of production electronics which is also still considered as a standard practice.