Portions of the Defect Troubleshooter have been sponsored by

SEHO develops and manufactures soldering machines for the electronics industry that are trend setting world wide. Numerous pioneering innovations in the field of soldering, such as soldering in nitrogen atmosphere, originated at SEHO. SEHO is present for its customers world wide, with subsidiary companies in the USA, England and China as well as more than 40 long standing international sales distribution and service partners.

In the course of the last 30 years SEHO has contributed decisively to make the electronics industry what it is today, and has thereby established a leading position for itself on the world market.
To be globally present, it is necessary to think globally. Therefore SEHO co-operates with international research committees, laboratories and industry partners in trend-setting projects, such as leadfree soldering or nanotechnology.

Our customers constitute our challange – their satisfaction is our goal. This is reflected not only by the modern innovative soldering machines and the high quality standard of our products, but also above all by our orientation according to customer requirements, because soldering is our passion!

Meet our experts
Dr. Ronny Horn, born in 1968, graduate physicist, diploma thesis about thermal characterisation of SiC mono-crystals, dissertation about thermal utilisation of solar energy at the Center for Applied Energy Research, graduation in 2001 at the University of Wuerzburg.

Dr, Ronny Horn started his career at a company developing ultra-high vacuum technology. Since 2004 he is working in the field of soldering technology, with main focus on reflow soldering.

Pin/Blow Hole	Bulbous Joint	Cracked Joint	Lifted Component	Flux Residues
Incomplete Joint	Inconsistent or Poor Hole Fill	Joint Contamination	Lifted Pads	Lifted Resist
Pad Contamination	Poor Solderability or Wetting	Poor Penetration	Outgassing	Solder Ball/Balling
Solder Flags	Solder Shorts	Solder Skip	Sunken Joints	Solder mask discoloration