added SMT soldering

HOWTO/SMT-component-solder-HOWTO.md

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+# SMT Component Solder HOWTO
+
+## This is a work in progress and subject to change
+
+## Items needed
+
+* PCB
+* Component(s) to be added
+* PCB cradle
+* Solder paste
+* No clean flux
+* Cotton swabs
+* Soldering Iron
+* Tweezers
+
+## Procedure
+
+1.  Secure the PCB into the cradle.
+
+2.  Apply solder paste to the PCB.
+
+3.  Using tweezers, place the component into position on the PCB.
+
+4.  Using the heat pen, melt the paste onto the component.  The paste should conform onto the copper leads on the PCB.
+
+5.  Repeat for all components.
+
+If there is a bridge between two leads and melting it with the heat pen doesn’t solve the problem, then continue.
+
+6.  Using a cotton swab, apply a coat of no clean flux to the solder bridge.
+
+7.  Heat up the soldering iron to 420 C.  Press the iron onto the solder bridge to melt it.  This should break the bridge.
+
+8.  Repeat for other bridges.