Solder Paste Printing Process
Pick and Place Process
Reflow Soldering Process
Cleaning
Conformal Coating
General
- What's the best practice for handling solder paste
- What's the best solder paste quality control?
- Type 3 or Type 4 Solder Paste
- What's the best way to clean a misprinted PCB?
- What factors affect solder paste transfer efficiency?
- What is the difference between aspect ratio and area ratio of stencil apertures?
- What stencil thickness should be used?
- What squeegee speed should be used?
- What squeegee pressure should be used?
- What the differences between 'on-contact' printing and 'gap' printing?
- What separation speed should be used?
- What are the benefits / challenges of using halogen-free solder paste?
- What is the best stencil aperture shape for solder paste transfer efficiency?
Pick and Place Process
- What's the best way to support a PCB during assembly?
- How are components transferred from tray to tape and reel?
- What is 'Package on Package' (POP)?
- What methods are there for stock control and monitoring component attrition?
Reflow Soldering Process
- What are the different types of reflow profile?
- What does the term voiding mean?
- How is void percentage calculated?
- How to reduce voids in QFN device ground connection?
Cleaning
- What are the differences between 'Water-soluble' and 'No-clean' flux?
- What causes electrochemical migration (ECM)?
- What is the difference between ionic and non-ionic contamination?
- Why clean a PCBA that has been soldered using no-clean flux?
- How do engineered cleaning fluids such as Zestron and Kyzen work?
- How do engineered cleaning fluids affect surface tension and wetting angle?
- How does the pH level affect engineered cleaning fluids?
- How do mixed-bed and carbon filters work in PCB cleaning systems?
- What are the risks of using ultrasonics to clean PCBA's?
- What is ROSE (Resistivity of Solvent Extract) testing?
- How do you validate a PCBA cleaning process?
Conformal Coating
- What are methods of masking before conformal coating?
- How to apply conformal coating by brushing?
- How to apply conformal coating using dipping?
- How to apply conformal coating using spray/aerosol?
- How do selective robots apply conformal coating?
- What is the best method to dry/cure conformal coating?
- What concerns are there when demasking?
- What should be checked when inspecting after conformal coating?
- How to check the adhesion of conformal coating?
General
- What is a Teflon PCB?
- What is a Rigid Flex PCB? Examples, Cost, and Uses
- Wiring Harness Manufacturing: A Detailed Guide
- What's the preferred PCB finish within the industry?
- What is the 'floor life' for the different moisture sensitivity levels?
- Is there a quick way of comparing bills of material to find differences when up issuing an assembly?
- Comparison of SAC305 and SAC387 Lead-Free Solder Alloys
- What is a 'Eutectic' solder alloy?
- What does 'SMT' stand for?
- What do you think of low temperature lead free solder paste?
- What software is available to view Gerber data?
- What software is available for PCB design?
- How do you extract CAD data from PCB design software?
- How are PCB's manufactured?
- What are the IPC standards that govern electronics manufacturing processes?
- What are the differences between SMEMA and HERMES?
