2/Remove the chip with a wind gun
3/Clean solder pad with tin strap
4/The chip is loaded into the planting table
7/Get the tin balls ready
8/Aligning the ball net
9/Put the tin ball into the solder plate
10/Remove the stencil
10/Heat the air gun slowly
11/The pewter ball melts to complete the planting ball
12/Install the preheater and position the chip
13/Work together from top to bottom
14/Gently move the chip with tweezers and feel the welding effect
15/Welding to complete
When PCB is carrying out SMT chip processing (SMT), there are usually 3 methods (based on the situation of opening the steel mesh): all manual, semi-automatic, and fully automatic. All manual is to brush the steel mesh, and the electronic components are placed manually. Semi-automatic refers to b...
, and connect them to complete specific functions of the circuit. Compared with discrete component circuits, integrated circuits greatly reduce the volume, weight, number of lead wires and solder joints of point circuits, and improve circuit performance and reliability. The miniaturization, minia...
PCB circuit board proofing or board making requires a lot of information, and the difference in each item will have a huge impact on the final price. Size, board thickness, surface treatment, resistance resistance, solder mask coverage, solder mask color, gold finger, copper foil thickness, etc. ...