ENGR 1101 Introduction to Engineering ECE Deparment Fall 2012 Dr John J Helferty Basic Tools Materials and Procedure of Hand Soldering Basic Elements of Hand Soldering Temperature controlled Soldering Iron with stand and sponge ID: 406752
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Slide1
Introduction to Soldering
ENGR 1101 – Introduction to EngineeringECE Deparment – Fall 2012Dr. John J. HelfertySlide2
Basic Tools, Materials and Procedure of Hand Soldering
Basic Elements of Hand
Soldering:
Temperature controlled Soldering Iron with stand and sponge
Solder Material
(will be provided by TAs)
Turn on the Soldering Iron and wait for the iron to heat up (Medium setting will be fine)
Make sure your
sponge is wet
!Slide3
What is Soldering?
The process of making an electrical connection by melting low-temperature metal alloys around component
leadsSoldering is just as much an “Art” as it is a “Science
”We will:Go over some soldering vocabulary
Illustrate graphically soldering techniques
Show how to create a “perfect” solder joint
Begin the Hovercraft Construction (ECE section)Slide4
Basic Procedures for Soldering:
Put two target objects (to be soldered) together
Pre-heat the joint area with soldering iron
Apply solder at the joint and remove when sufficient solder has flowed down to the joint
Remove solder wire and then soldering iron, and allow the joint to cool down
Clean the surfaces to be soldered (dirt free, grease free and oxide-free)
Wet the joint area with flux, if needed Slide5
Basic Procedures for Soldering:
Touch the tip to the component lead
AND
the pad
Apply just enough heat
TLAR (
T
hat
L
ooks
A
bout
R
ight)
Your join should look something like this one.
You should only need a small amount of solder for each
joint.Slide6
Good and Bad Attempts:
GOOD:
The join is complete and will hold in place.
BAD:
Not enough solder applied. No join.Slide7
The PCB (Printed Circuit Board)
A PCB (Printed Circuit Board) is used to mechanically support and electrically connect electronic components using
conductive pathways, tracks or signal traces etched
from copper sheets laminated
onto a non-conductive
substrate.
Think of it as a breadboard, in which the traces are already mapped out. Slide8
Here’s our PCB:Slide9
Components for Soldering:Slide10
PCB Schematic
Please Note:
Barrel Plug:
Solid Black Wire is GND
Striped Black Wire is +12V
Slide11
Safety Concerns:
Don’t solder while
circuit is poweredUse well ventilated and lighted work spaceDon’t touch the solder tip – it’s hot (dahhh
)Watch for flying leads when clipping excessSlide12
Any
Questions?