Before You Learn Electronics, Learn About Electronic Components!This kit contains a 28 page manual with dozens of illustrations includes detailed descriptions of all parts, their functions in a circuit, color codes, and five self tests. Proper soldering technique and quality of solder are the lifeline of any PCB manufacturing and assembly. Quality of solder and the soldering technique decides the life and performance of any electronic equipment, appliance or gadget. Flux plays a vital role in any soldering process and electronics PCB manufacturing and assembly.
R Type flux – These flux are Non-Activated and are used where there is least oxidation. The type of flux to be used in soldering depends on various factors such as type of PCB to be assembled, type of electronic components used, type of soldering machine and equipments used and the working environment.
Because lead is harmful to the environment and human beings, the European Union took the initiative to ban lead from electronics. Since, electronic companies are the ones doing all the soldering and PCB manufacturing, they cannot be ignored here. Reflow Soldering: Reflow Soldering is done for mass production and is used for soldering of SMD components on to the PCB. Hand Soldering: Hand soldering is done in small scale production and repair and rework of PCB. A wave soldering machine can be of different kinds, suitable for leaded wave soldering and lead-free wave soldering but all of them have the same mechanism. There can also be a fourth zone zone called for cleaning of flux after the soldering is done. Reflow Soldering uses SMT (Surface Mount Technology) to solder SMD (Surface Mount Devices) on to the PCB.
In this process solder paste is printed on the track of the circuit board where the component is to be soldered.
Hand Soldering for thru-hole components is done using a soldering iron or a soldering station.
Soldering is accomplished by quickly heating the metal parts to be joined, and then applying a flux and a solder to the mating surfaces. Keep temperature as low as possible while maintaining enough temperature to quickly solder a joint (2 to 3 seconds max for electronic soldering).
Lead-Free is taking rapid momentum around the world after the EU (European Union) Directives to wipe off lead (Poison) from electronic soldering considering its health and environmental effects. There will undoubtedly come a time when you need to remove the solder from a joint: possibly to replace a faulty component or fix a dry joint. Enter your email address to subscribe to this blog and receive notifications of new posts by email.
You may need an assortment of soldering irons to do a wide variety of soldering tasks.


With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts. To send your question you'll need to ENTER THE CAPCHA CODE SHOWN ABOVE into the verification box! Our friends at Make: are running a "Teach Your Family To Solder" week and since I consider all of you my robotics geek family I decided to post some basics on how to solder. If you are into electronics, you must be knowing that soldering is basically a technique to join two metals using a third metal or alloy.
Soldering is done using solder while brazing is done using a lower melting-temperature filler metal. Flux removes any oxide and prevents oxidation of metals and hence helps in better soldering quality. These fluxes are more active than R-Type fluxes and are used at places where there is more oxidation. The quality of solder used during soldering and PCB assembly decides the life and performance of any electronic machine, equipment, appliance or gadget. Equipments and raw materials needed for wave soldering are – wave soldering machine, solder bar, flux, reflow checkers, dip tester, spray fluxers, flux controller.
Equipments and raw material needed for reflow soldering are – Reflow Oven, Reflow checker, stencil printer, solder paste, flux.
Equipments and raw materials needed in hand soldering are – Soldering iron, soldering station, solder wire, solder paste, flux, desoldering iron or desoldering station, tweezers, solder pot, hot air system, wrist straps, smoke absorbers, static eliminators, heating gun, pick-up tools, lead formers, cutting tools, microscopes and magnifying lamps, solder balls, flux pen, desoldering braid or wick, desoldering pump or sppon, overcoat pen, esd material. Employees inserts electronic components on to the PCB that keeps moving forward on the conveyor.
In Reflow soldering there are four stages – preheat, thermal soak, reflow and cooling. Printing of the solder paste can be done using a solder paste dispenser or through stencils printers.
The finished solder joint metallurgically bonds the parts forming an excellent electrical connection between wires and a strong mechanical joint between the metal parts.
A BGA package simply looks like a thin wafer of semi-conducting material that has circuit components on only one face. This is mainly created by an imbalance of electrons that stay on a specific surface, or in the environmental air. This website provides basic electronics tutorial for beginners, students, teachers, electrical and electronics professionals. In electronic PCB Manufacturing, assembly and rework, the metals to be joined are the leads of the electronic components (thru-hole or SMD) with the copper tracks on the PCB.
In welding, the base metal also melts while joining two metals whereas this is not the case with soldering and brazing.
In Electronics PCB Assembly process, flux removes any oxide from the copper tracks on the PCB and oxides from the leads of the electronic components.


Once all the components are in place, the PCB moves to the wave soldering machine passing through the different zones.
This board with solder paste and components of the paste is then passed through a reflow oven where the components get soldered to the broad. The Ball Grid Array package is called such because it is basically an array of metal alloy balls arranged in a grid.
The imbalance of electrons (in all cases, is caused by absence or surplus of electrons) thus causes an electrical field that is capable of influencing other objects at a distance. In this basic electronics tutorial website you will find tutorials on electronic circuits, analog and digital electronics, electricity, static electricity, solar energy, electronic components and parts, soldering and desoldering and more.
Now that I am 13 years old, I now have a good amount of experience to build complicated electronic circuits. Just send me a private message if you think your project is interesting, if it is, I will add them to my guide. The alloy used to join these two metals is solder which is basically tin-lead (Sn-Pb) or tin-silver-copper (Sn-Ag-Cu). These oxides are biggest resistance in good soldering and by removing these oxides, fluxes play a very vital role here.
Because the solder balls have to be placed under the component and soldered, soldering of BGA becomes a very difficult task.
Solder waves in the solder bath solders the components and the PCB moves out of the machine where it is tested for any possible defect. The board is then tested for any defect and if there is any defect, rework and repair is done using hot air systems. The basic electronics tutorials are also offered in PDF, video and PowerPoint ppt for free download. Learning electronics isn't that easy but if you put love and passion to it, I assure you that you would enjoy building your own experiments.
Tin-lead solder is called leaded solder because of the lead present in it while the tin-silver-copper solder is called lead-free solder because no lead is present in it.
The purpose of this site is to give students and beginners studying Electronics, good Basic Electronics Tutorials and information to help gain knowledge and proper understanding of the subject of Electronics. The solder is melted using either a wave soldering machine or a reflow oven or a normal soldering iron and this molten solder is then used to solder the electronic components on to the PCB. A PCB or Printed Circuit Board after assembly of electronic components is called PCA or Printed Circuit Assembly.



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