Basic soldering

aimone recorder screen i aint mad at ya lyrics tupac mystery snail blood remover antler lamp rock polishing chair beds el granma sarah michelle gellar sex greyhound bus line model ships notebook sleeve words to sugar were goin down mancini leathergoods ripped dvd download clear channel outdoor timine wi high school state wrestling enterprise car rentals message in a bottle filmed sexy lingery www british airways.com non nude teen bra asian supermarkets sydney timber homes pegasus kitchen faucet hot bikini model computer programming arkansas justin sheridan welch local weather activation keys for pinnacle studio 9 amatuer sex naked celebrites lombardies album allman band brother tack thumb amidosulfonic acid doctorate degrees umpire cap white pussy theological schools in london great lakes airlines new red hot chili peppers album militia information management conference illinois department of motor vehicle no go area indian supermodels cam millikan carpets one review tomtom st martins paperback full guitar pro 4 download sunday school curriculum portable computers flight jacket immigrate canada iframe link codes circumcise us disney kids enviroment canada weather lever drag rubber sex action contract item manager training army of lovers ex girlfriend wood furnace miami heat pictures world currency exchange rate posted pic girl artificial intelligence graduate programs porsche sacramento naru my doorbell unijet protea hotel umhlanga rocks workflow systems llc old elvis presley dunhams sports east knox schools ohio area miami restaurant it cant rain all the time movie quote girdles web hosting package cheap office 2003 help penis enlargement devices energizer recharger review 2006 bracket nebraska tournament wrestling halloween card seo companies diamonds loose thermomter tort reform medial joint type of lentil federal court cases chew adam holmes consumer reports music software downloads how to repair leather double d trailers little pussy .com model airplanes zerumbet wedding bouquet car buying turbonator waggener edstrom portland cts 28 milwaukee volt proposal request secondary system water donne help wailea condos multimedia mens pubic hair cheap wedding invitations wimax voip airline continental reservation cell phone rates women health supplements purchase line school website kk pfizer viagra gay party zin zin zin a violin yahoo education dictionary exchange rates make a crossword puzzle wilderness ride kayak for fishing sabatourism.com moby lines ferry josh kelley gay latin cock anal huge penetration high performance car part songlyrics.com omarion album o telemarketing calls cell phone nota simple kim and ginnys pacific warriors dogfight maze ticket the cell phones history lilyette bras easy rider girls 360 box skin x driving map rv rent nanny new york sebastian lefebvre pics runas command xp ss medicare complete cans business education recipe apple pancakes sex tits nina whett mesina hof southwestern christian college athletics ms office 97 free download uv air purifier star wars photos westpac bank australia paydayloan cheapest fioricet rhianna gaymen fowl words fuelcard turkish airline av valve allergy address of st johns catholic church in burlington iowa the used pics promotional discount ab lounger fitness quest neosoul artist hopeful unbelievably good deals and great adventures free background checks laser therapy smoking is it safe philps mp3 players video porno paris hilton aim icon names allegheny county alterimage 2.0 exotic female muscle galleries small business discounted airline tickets colonial furniture naked anime babes simplicity tractor parts john legend ordinary people nylons stockings feet superman emblem tattoos large format printers islam crusade

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 t 1000 hat 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.