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== Basic Soldering ==
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Required tools:
 
Required tools:
 
Hot metal object (preferably with an insulating handle like in a soldering iron)
 
Hot metal object (preferably with an insulating handle like in a soldering iron)
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Technique:
 
Technique:
Apply hot metal object to both surfaces that are to be soldered together.  Feed the flux-core solder into the joint from the side opposite the h.m.o. (soldering iron) Once enough solder has flowed, remove heat.
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Apply hot metal object to both surfaces that are to be soldered together.  Feed the flux-core solder into the joint from the side opposite the h.m.o.  Once enough solder has flowed, remove heat.
 
 
If you have difficulty in holding two objects in place whilst you solder them try using the product "Blu-Tac" ([http://en.wikipedia.org/wiki/Blu-tac]) or similar. Blu-tac is non-conductive and moderately resistant to heat (that said you can still burn it without a lot of heat, creating a bad smell, probably not good to breathe either)
 
 
 
The major advantage of Blu-tac over a vice or other mechanical holding option is that you can make infinitesimal adjustments with your fingers quickly and accurately.  
 
  
 
Preferred tools:
 
Preferred tools:
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Thin (fine-pitch) rosin-core solder.
 
Thin (fine-pitch) rosin-core solder.
 
Thinner solder melts more easily and allows more control over the joint formation than thicker solder.  Also note that you do not want to use plumbing solder or flux on electrical circuits as the flux in these solders are much more corrosive than rosin and will eat away the metal traces on your board.
 
Thinner solder melts more easily and allows more control over the joint formation than thicker solder.  Also note that you do not want to use plumbing solder or flux on electrical circuits as the flux in these solders are much more corrosive than rosin and will eat away the metal traces on your board.
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== Advanced Soldering ==
 
== Advanced Soldering ==
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Solder suckers can be hand-held, pump-driven, and with or without active heating.  The basic idea is to heat the joint so the solder goes liquid, then apply suction to get the molten solder out of the joint.  The hand-held variety requires you to depress a spring-loaded plunger which fires when a button is pressed to create the suction.  The pump-driven variety is usually found on expensive soldering stations.  Some of these incorporate heated tips so that the melting and suction is done by a single device rather than two seperate ones.
 
Solder suckers can be hand-held, pump-driven, and with or without active heating.  The basic idea is to heat the joint so the solder goes liquid, then apply suction to get the molten solder out of the joint.  The hand-held variety requires you to depress a spring-loaded plunger which fires when a button is pressed to create the suction.  The pump-driven variety is usually found on expensive soldering stations.  Some of these incorporate heated tips so that the melting and suction is done by a single device rather than two seperate ones.
  
Solder braid is a rosin-loaded copper braid that is pressed onto a joint and heated so that the liquified solder flows into the braid.  Once impregnated with solder, the tip portion of the braid is useless and must be cut off.  Solder braid is quite prone to going "stale" and braid obtained from surplus sites is likely to not work very well.
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Solder braid is a rosin-loaded copper braid that is pressed onto a joint and heated so that the liquified solder flows into
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the braid.  Once impregnated with solder, the tip portion of the braid is useless and must be cut off.  Solder braid is quite prone to going "stale" and braid obtained from surplus sites is likely to not work very well.
  
 
Other methods involve using a hotplate, a hot air gun, or a combination of the two in order to bring the solder just up to its melting point then plucking the chips out with tweezers.
 
Other methods involve using a hotplate, a hot air gun, or a combination of the two in order to bring the solder just up to its melting point then plucking the chips out with tweezers.
  
 
== Links ==
 
== Links ==
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[http://www.elexp.com/t_solder.htm Electronix Express Soldering Tips]
  
* [[skillet reflow]]
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[http://radiojove.gsfc.nasa.gov/telescope/soldering.htm Instructional Soldering Videos from NASA]
* [[toaster oven]]
 
 
 
* the PIClist thread [http://www.piclist.org/techref/postbot.asp?by=thread&id=Looking+for+SMT+Prototype-suitable+solder&w=body&tgt=post "Looking for SMT Prototype-suitable soldering station"] has a few soldering iron recommendations, including
 
** Weller
 
** [http://www.ntscope.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=MTC&Product_Code=QK202D $130 Madell QK202D Soldering Station]
 
** [http://store.sra-solder.com/product.php?xProd=6144&xSec=22 $40 Aoyue Basic Soldering Station 936]
 
 
 
* [http://www.elexp.com/Images/Weller_Coping_with_Lead_Free.pdf Electronix Express "Soldering tips and lifetime issues"]
 
* [http://www.elexp.com/Images/Better_Soldering.pdf "Better Soldering"]
 
 
 
* [http://radiojove.gsfc.nasa.gov/telescope/soldering.htm Instructional Soldering Videos from NASA]
 
  
 
[http://www.inlandcraft.com/Uguides/tipfailure.htm InlandCraft Tip Failure Article]
 
[http://www.inlandcraft.com/Uguides/tipfailure.htm InlandCraft Tip Failure Article]
  
* [http://www.geofex.com/Article_Folders/how_to_solder.htm Geofex.com How-To Solder]
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[http://www.geofex.com/Article_Folders/how_to_solder.htm Geofex.com How-To Solder]
 
 
[http://www.curiousinventor.com/guides/Surface_Mount_Soldering Video "How to solder SMD" from curiousinventor.com]
 
 
 
* [http://www.curiousinventor.com/guides/How_To_Solder Video "How to solder properly" from curiousinventor.com]
 
  
 
[[Category:Techniques]]
 
[[Category:Techniques]]

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