Essays about: "Solder"

Showing result 1 - 5 of 30 essays containing the word Solder.

1. 1. Improving jet printing quality for printed circuit boards : Optimizing first dot jetting deposition through experimental design and response surface methodology

   University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

   Author : William Hedlund; Gustav Sjöberg; [2023]
   Keywords : PCB; printed circuit board; piezo-actuation profile; quality; My700; solder paste; jet printer; jet printing; experimental design; experimental approach; waveform;

   Abstract : Printed circuit boards (PCBs) are essential components in various electronic devices, playing a vital role in their functionality. Over time, PCBs have evolved significantly, becoming smaller, more complex, and multi-layered to meet the demands of advancing technology and consumer preferences. READ MORE

3. 2. Prognostics for Condition Based Maintenance of Electrical Control Units Using On-Board Sensors and Machine Learning

   University essay from Linköpings universitet/Fordonssystem

   Author : Gabriel Fredriksson; [2022]
   Keywords : machine learning; random forest; random survival forest; condition based maintenance; cbm; reliability; solder joint failure; thermomechanical cycling; ECU; lifetime prediction; data-driven; statistics; BGA; PCBA; field quality; maintenance; truck; bus; vehicle;

   Abstract : In this thesis it has been studied how operational and workshop data can be used to improve the handling of field quality (FQ) issues for electronic units. This was done by analysing how failure rates can be predicted, how failure mechanisms can be detected and how data-based lifetime models could be developed. READ MORE

4. 3. Electroless Copper Plating to Achieve Solderless Connections

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Martin Noren; [2021]
   Keywords : electroless copper plating; solderless connections; non-solder; solderless; solder free;

   Abstract : As the world has woken up to the change in climate in recent years, people's environmental concerns are forcing companies to change and find ways to manufacture products without harming nature. One area of serious concern is the electronics industries where an ever-increasing number of products gets updated with sensors and microcomputers to be part of the internet of things. READ MORE

5. 4. Jet Printing Quality ImprovementThrough Anomaly Detection UsingMachine Learning

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Henrik Lind; Jacob Janssen; [2021]
   Keywords : Jet Printing; Autoencoder; Anomaly Detection; Sound; Acoustic; Machine Learning; Solder Paste; Piezoelectric Current; Self Sensing;

   Abstract : This case study examined emitted sound and actuated piezoelectric current in a solderpaste jet printing machine to conclude whether quality degradation could be detected with an autoencoder machine learning model. An autoencoder was used to detect anomalies in non-realtime that were defined asa diameter drift with an averaging window from a target diameter. READ MORE

6. 5. Simultaneous measurement and discrimination of temperature and strain in distributed fiber optical systems with fiber Bragg gratings

   University essay from Uppsala universitet/Fasta tillståndets fysik

   Author : Helene Alexandra Mastrothanasis; [2021]
   Keywords : ;

   Abstract :  This master thesis deals with simultaneous measurement and discrimination of temperature and strain using fiber Bragg gratings(FBGs). Saab Avionics is seeking for a further development of the overheat detection system that gives a warning when a heat leakage is detected. READ MORE