Printed Circuit assembly consists of attaching electronic components attached to a printed circuit board. The assembly is completed after the assembled board is tested.
There are two main types of processes for mounting and attaching electronic components to the printed circuit board:
- Surface mount technique: In this method the components are mounted directly on the PCBs. A component mounted in this fashion is called a surface mount device (SMD). Short pins or leads of various styles, flat contacts or an array of solder balls enables the contacts to be made to the board. Higher circuit densities can https://www.hemeixinpcb.com/rigid-pcb/rf-and-microwave-pcb.html be achieved if components are attached on both sides of the circuit using this technique.
- Throughhole technique: In this method the leads on the components are inserted into the holes drilled in to the PCBs. These leads are then soldered on the opposite side. Soldering can be done manually or through automated machines. These components provide for mechanically stable connections but the assembly operation is much slower than the SMT process.
Most of the devices use a combination of surface mount and throughhole technology on a single PCB. The final assembly can be achieved by attaching the board through custom metalwork, wire harnesses and looms and cable assemblies inside of an enclosure.
Printed circuit boards, either after they have been in the field and need to be repaired or during the manufacturing process and need to be reworked, can be damaged. When it makes sense economically or logistically these PCBs need to be repaired from the physical damage that they have suffered.
When situations such this arise and the physical elements of the PCB need to be repaired a PCB repair kit is required. It has all the tools you need to repair a multitude of problems. For example if fast repair and modification of circuit traces is required the PCB repair kit has a variety of circuit traces. A typical includes: replacement circuit tracks of various sizes, resin/ hardener for attaching replacement tracks and pads, a knife along with a variety of blades for precision cutting amongst other components. The printed circuit board repair kit also includes instructions for ease in understanding the use and purpose of all of the items inside the kit.