Basic soldering

stadio messina calcio blaupunkt sanremo lago balaton blixen-finecke, karen wario land flower bubble diesel giubbotti donna abbigliamento pioneer deh-1700r mariachis midi baby mere mein libri di grammatica greca cartoline auguri natale irak creeme box hard disk sata stampante scanner fax teatro d1 la battaglia di midway tamron 28 2 8 mauna loa casse z-3 singolo 50enne www o zone it fiamignano joybook 7000 tv viaggi agosto chicas gratis con ses carta adesiva nanin mascia ferri che si masturba basket puglia montecristo pietre semipreziose apertura negozi franchising masterizzatore dvd lite-on festa del vino polpenazze video decapitazioni iraq terme hotel imperia quitate tu pa gran the auto san andreas elmshorn associazione in partecipazione strade americane zion y lenox ahora cazzi in culo di cani immaggini porno adidas adistar competition reguly, antal concessionario torino modem router wireless adsl hyundai 32 lcd bigi fruttosio antenne auto per tv tesi scolastiche vinicio assicurazione credito barisardo educacion fisica ray ban 4065 societate pe actiuni una vita venduta film da ridere driver stampante xp la vecchia porca di campagna valeria marini diario 2005 dv cam h10 sdram apple 512 apera pregnant in calore kyocera ez umberto saba autore venezia hotel prenotazione stacy mom fountains dvd carta freelander 1999 calcolo interesse bancario conto corrente auto cuneo miglioli odalische biglietti... damore big breast acquisto pantalone brytny spears like humas do never say never hotel saint ge free sesso germania pallida madre videocassetta 180 aspirapolvere ad acqua simac sexy nagma bar mixing camera dublin foto donne lesbiche silenzio fuori transformers. robots in disguise. vol. 01 de ce pling chitarele inox screensaver cronache casalinghe nike air terra hallowed by the name maroon 5 this love free mp3 www mezzi di trasporto it modem 56k trust cheap ecommerce hosting videoproiettori accessori non giudicare calendario 2001 victoria silvsted sex tapes scandal charles-roux, edmonde santa lucia belpasso sig 210 everybody game boy tetris classifica serie a calcio delonghi condizionatore murale caduet mamma mia che impressione testo from sarah with love bustout vienio pele wwo u ciebie w miescie asfissiante instincs brujas canon i6500 makai grand prix frase festa mamma topless amatoriali rubati tiozzo sergio di tiozzo claudio likin park di dragosta din tei top sirio brescia possibili temi maturita 2004 tastiera 2000 sanpaolo banco napoli incontro salsomaggiore terme luomo sul tetto trick me www sanpaolo imi cpm hard disk esterno firewire lacie annuncio coppia veneto giocattoli tiny kylie minogue foto crack nec e 228 un orso chiamato arturo passaggio di propieta femtex ups e pdu nuova honda transalp 2005 luomo del west cucina orologio italian hostages sempron dissipatori amd e ventole tivoli songbook lcd apple 20 thermaltake athlon frosties kellogs dancan dei blue austria graz fisitng valle del cauca tariffa cellulare piastra di registrazione a cassette casale toscana xslide julieta venega www bresciaoggi it escursioni liguria www lavinium it rollercoaster 3 pettine fitto islam on line sexy blonde minimoto usate melevisione rai it foto digital storage bill barner lloro sin banderas condono edilizio in toscana opere liriche terapia del dolore www eros com har disk lettore dvd divx dvd-p244 trucchi di tomb raider gratis bmw serie 1 attiva tavolo per proiezione un omicidio consentito dalla legge canzone dellamore perduto dfi lanparty nf4 sli-d gialluca grignani kasam ki kasam gigi simoni ninna nanna federico salvatore adsl pci motel italia il decalogo quattro bevk, france virus per cellulare congresso kyoto 1997 == Basic Soldering == Required tools: Hot metal object (preferably with an insulating handle like in a soldering iron) Solder (preferably with rosin flux core)

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. Once enough solder has flowed, remove heat.

Preferred tools: A temperature-controlled soldering iron/station. Please be aware that many cheap soldering stations and irons, even if they are adjustable, simply adjust the overall wattage feeding into the tip. This usually means the tip will still get just as hot at the lowest setting as at the highest, it just takes longer. Temperature control requires feedback which means a more expensive iron. Still, if you shop around, you can find lower-end temp-controlled irons for US$50-$60. The recommended temperature is around 380F for 63-37 (tin-lead ratio). This should be enough to completely liquify the solder without vaporizing the rosin flux. A too-hot tip will generate a sizeable white puff of vaporized rosin smoke when solder is touched to it. You want the rosin to flow onto the joint surfaces to clean them in preparation for melding with the solder, not in the air around the joint. 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.

Advanced Soldering

The "Packaging information" thread has a few tips for soldering surface-mount (SMT) components: SOIC (1.27mm/50 mil pitch), SSOP (0.65mm pitch), TQFP (0.50mm-0.80mm pitch), and MLF/QFN (0.50mm pitch).

Desoldering

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.

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.