Soldering Technique for PCB
A circuit is practically designed in two stages. The first stage is of Bread Board designing in which the components are placed but not mounted on the board so that when there is a need to replace or remove them, they can easily be replaced. This circuit is not the finalized circuit but is used for circuit testing. The finalized circuit is made on the PCB where all components are either mounted or soldered onto the PCB permanently. If you will try to pull out the components of any of the printed circuit board in your damaged cell phone, TV remote control or any other object, you will not be able to remove it, because they are soldered firmly onto the board.
Soldering is a key step in any PCB fabrication and without this step the finalized circuit cannot be completed. For this reason it is important to know the basics of soldering and the pros and cons involve in it. Anything added to the circuit ads to the overall resistance and therefore special care has to be taken when adding the soldering wire. The more the iron wire is soldered the more will be the overall circuit resistance and the more the actual outcome will deviate from the desired outcome. The first thing to make sure before soldering is that the soldering iron has a sharp tip and can easily melt the soldering wire. If the iron is not able to quickly melt the iron wire then the neatness and fineness in the soldering step will not be achieved.
As the legs of all components are soldered, it is recommended that the extra parts of the legs are cut after being soldered. Cutting it prior to soldering will make it difficult for the designer to accurately solder the legs and hence the probability of errors will increase, thus increasing the overall circuit resistance. A common practice that is seen by engineers and designers is that they put the soldering wire at the place where soldering has to be performed and then they bring it in contact with the soldering iron. This method is not appreciated as it takes more time to solder and also melts more iron wire which is not required. The less the iron wire consumed in one soldering, the more will be the circuit efficiency.
So, the recommended method is to place the tip of the soldering iron at the hole which is to be soldered and then bring the iron wire in contact with the soldering iron. This will yield accurate results and lesser time to perform the entire soldering procedure. When desolder sucker is used, the designer should try to suck the entire soldering from the place and not partially. Of traces of previous soldering is left then after re-soldering, the previous and new soldered wire will combine to increase the circuit resistance. For this reason, it is always recommended to use new PCBs rather than completely desoldering old PCBs for new circuits,
A circuit is practically designed in two stages. The first stage is of Bread Board designing in which the components are placed but not mounted on the board so that when there is a need to replace or remove them, they can easily be replaced. This circuit is not the finalized circuit but is used for circuit testing. The finalized circuit is made on the PCB where all components are either mounted or soldered onto the PCB permanently. If you will try to pull out the components of any of the printed circuit board in your damaged cell phone, TV remote control or any other object, you will not be able to remove it, because they are soldered firmly onto the board.
Soldering is a key step in any PCB fabrication and without this step the finalized circuit cannot be completed. For this reason it is important to know the basics of soldering and the pros and cons involve in it. Anything added to the circuit ads to the overall resistance and therefore special care has to be taken when adding the soldering wire. The more the iron wire is soldered the more will be the overall circuit resistance and the more the actual outcome will deviate from the desired outcome. The first thing to make sure before soldering is that the soldering iron has a sharp tip and can easily melt the soldering wire. If the iron is not able to quickly melt the iron wire then the neatness and fineness in the soldering step will not be achieved.
As the legs of all components are soldered, it is recommended that the extra parts of the legs are cut after being soldered. Cutting it prior to soldering will make it difficult for the designer to accurately solder the legs and hence the probability of errors will increase, thus increasing the overall circuit resistance. A common practice that is seen by engineers and designers is that they put the soldering wire at the place where soldering has to be performed and then they bring it in contact with the soldering iron. This method is not appreciated as it takes more time to solder and also melts more iron wire which is not required. The less the iron wire consumed in one soldering, the more will be the circuit efficiency.
So, the recommended method is to place the tip of the soldering iron at the hole which is to be soldered and then bring the iron wire in contact with the soldering iron. This will yield accurate results and lesser time to perform the entire soldering procedure. When desolder sucker is used, the designer should try to suck the entire soldering from the place and not partially. Of traces of previous soldering is left then after re-soldering, the previous and new soldered wire will combine to increase the circuit resistance. For this reason, it is always recommended to use new PCBs rather than completely desoldering old PCBs for new circuits,