1. Basic Skills Soldering Class
Instructor: Ted Markson

2. Lecture Goals Learn common soldering terminology
Become familiar with commonly used tools
View demonstrations of common soldering procedures
Hands-on assembly with a through-hole kit
Basic Skills Soldering Class
11/24/2018

3. Soldering Applications
Connect electrical wiring
Populate a PCB
Increase a circuit’s or wire’s bandwidth
Art
Gateway to education
Basic Skills Soldering Class
11/24/2018

4. Component Technologies
Basic Skills Soldering Class
11/24/2018

5. Through Hole (Thru Hole)
Leaded (‘lee-did) or Axial components
Mostly used for prototyping, or bread-boarding
Largest component package dimensions
Small pin counts, fastest to assemble
Basic Skills Soldering Class
11/24/2018

6. Surface Mount (SMD or SMT)
Sometimes Leaded (‘lee-did) components
Used heavily in large production
Some of the smallest component dimensions
Higher pin counts, can be quick to solder (skill depending)
Basic Skills Soldering Class
11/24/2018

7. Soldering Specifics
Basic Skills Soldering Class
11/24/2018

8. Tip Temperature Common solder alloys (%Tin/%Lead) include:
63/37 melts at 183 Deg. C.
60/40 melts between Deg. C.
50/50 melts above 185 Deg. C.
Generic lead-free alloys begin melting at 250 Deg. C.
Generally use tip temperature of twice the melting target
Basic Skills Soldering Class
11/24/2018

9. Flux Cleans the soldering site Slows oxidation during heating
Some prevention of corrosion
Magic smoke you see while soldering!
Do not inhale directly!
Basic Skills Soldering Class
11/24/2018

10. Tip Size and Shape Common tips include: Conical Chisel Blade Hoof
Basic Skills Soldering Class
11/24/2018

11. Maintain Your Soldering Iron
A shiny tip is a clean tip!
Never scrape the soldering tip with abrasives
Always place solder on the tip before resting or storing
Wet the sponge!
Basic Skills Soldering Class
11/24/2018

12. Maintain Your Soldering Iron (cont.) A Procedure!
On startup, clean tip with wet sponge or pulled foil
Wet tip before resting iron
Fling then wet before soldering
Wet, fling, clean, then wet before deactivating
Basic Skills Soldering Class
11/24/2018

13. Joints Good mechanical connection when possible
Proper heat transfer from iron to target
Wet the tip!
‘Cold’ joints
Pad stress from re-heating
Lifting PCB pads
Basic Skills Soldering Class
11/24/2018

14. De-Soldering Goals: Pumps versus Wicking
Saving the pads
Saving the parts
Being realistic
Pumps versus Wicking
Adding solder to remove solder
Basic Skills Soldering Class
11/24/2018

15. Demonstration
Basic Skills Soldering Class
11/24/2018

16. Soldering From Start To Finish
Arranging the work area
Ventilation
Proper tools for the job
Preparing the assembly
Clamping
Heatsink
Preparing the soldering implement
A wet tip transfers heat better
Common assembly procedures
Thru hole components to a board
Joining wires. Heatsinking
Pigtails
Desoldering
Assembly inspection
Cold joints
Lifting
Storing tools
Basic Skills Soldering Class
11/24/2018

17. ‘Flash soldering‘ Demonstration
Ted’s Two-step
Basic Skills Soldering Class
11/24/2018

18. Questions? ‘5OFFSMD’ >> $5 off an Advanced Skills class!
Basic Skills Soldering Class
11/24/2018

19. Build your kit!
Basic Skills Soldering Class
11/24/2018