How is Shenzhen PCBA processing quote calculated?

How is Shenzhen PCBA processing quote calculated? Shenzhen PCBA processing quotation is calculated according to the following: ordinary solder joint fee, DIP solder joint fee, manual solder joint fee, adhesive tape fee, labor fee, cleaning fee, packaging fee, transportation fee, comprehensive fee, and then add what should be Profits form the total PCBA quote. PCBA includes the entire process of PCB empty board through SMT loading, and then through the DIP plug-in, referred to as PCBA. Printed circuit boards, often using the English abbreviation PCB, is an important electronic component, a support for electronic components, and electronic components The provider of the line connection. It is made by electronic printing technology, so it is called “printed” circuit board.

Before the advent of printed circuit boards, the interconnection between electronic components relied on direct wiring to form complete circuits. Nowadays, breadboards only exist as effective experimental tools, and printed circuit boards have become the absolute rule in the electronics industry. At the beginning of the 20th century, in order to simplify the production of electronic equipment, reduce the wiring between electronic parts, and reduce manufacturing costs, they began to study the method of replacing wiring by printing. For thirty years, engineers have been proposing to add metal conductors on insulated substrates for wiring. The most successful was in 1925, CharlesDucas in the United States printed a circuit pattern on an insulated substrate, and then successfully established a conductor for wiring by electroplating.
For small batches of PCBA, engineering fees are generally levied, including costs of process files, stencils, SMT wire replacement, etc .; PCBA test costs also need to be included, and calculated based on the test time of each PCBA board; Processing, please Baidu search Chang Keshun to find our large-scale pcba processing, the various costs and costs will relatively decrease, so the pcba processing quote will naturally be cheaper. Price is closely related to quantity and processing difficulty.