PCB News - How to calculate the cost of Shenzhen circuit board factory

How to calculate the cost of Shenzhen circuit board factory

How does the Shenzhen circuit board factory calculate the cost? In fact, the cost calculation is generally based on comprehensive factors such as different processes and different material processing, and the quotation is generally calculated in units of per square meter. Of course, some special customized materials and process requirements will increase or decrease the price accordingly, and these are all subject to cost accounting. So, how should the cost of the PCB circuit board be calculated? The editor of the circuit board will share with you below.

Cost = material + labor + manufacturing cost, what are the PCB board materials included?

Generally, people who have seen circuit board factories or have made circuit boards know that the process of PCB boards is relatively long, and there is a lot of room to control the production cost. Production costs include: raw material control; water and electricity control; scrap rate control; process control, etc.

1. Raw material control
The same piece of circuit board, who can use the least materials to complete it, has the lowest production cost, and to control the least materials is to control its rework rate and employee waste rate, although many factories have PMC departments to come. Limiting the production of materials, but this is a solution to the symptoms, not the root cause. If the materials are not enough, the production cannot be stopped. In the end, it has to be sent to him. To really cure the root cause, it depends on the proficiency of the employees. The supervisor’s management ability, the design of the process, a set of strict management system and reasonable operation mode. Will reduce a lot of human error. It is recommended to choose experienced employees to complete certain key positions! For example: production supervisor; planning supervisor; MI engineer, etc.!

2. Hydropower control
Reasonable utilization of water and electricity is of vital importance, especially during peak seasons, there is often insufficient power. Many places have adopted curtailment control. When the machine is not in use, it must be stopped. Reasonable use of electricity can reduce large costs. The production planner must be proficient in the process, closely cooperate with the production and marketing departments, and communicate frequently to obtain timely information in order to arrange the production plan reasonably!

3. Scrap rate control
Scrapped circuit boards are indeed regrettable, especially the soaring copper plates on the market, rising materials, and declining profits of PCB boards. If the scrap rate is too high, it is undoubtedly worse for the corporate economy. How to control the scrap rate! This requires us to find a better operating system and management system to tolerate employee negligence and material instability. In controlling the scrap rate, we can control from the following points:

(1) Strengthen employees’ awareness and make them understand that PCB circuit boards are a valuable thing. They must be handled with care at all times. Don’t let him feel that we produce cheap boards or junk boards. It won’t be treated as a baby. Just like the posture that we require to hold the PCB board, we must hold the edge of the board with two hands. We don’t say that this will benefit the quality of the circuit board factory. This posture alone can make people feel To the preciousness of this circuit board!

(2) The QA MRB (Retirement Reviewer) is very important. It is up to him to judge whether the board should be scrapped. Then he must have a high sense of responsibility and be familiar with each process. If the board can be saved, give him a judgement. If it is scrapped, it is undoubtedly a waste. If the board that cannot be saved is deemed qualified by another board and continues to go down the process, it will waste the raw materials of the subsequent process.

(3) Continuously introduce new technologies and seek the most reasonable working mode to tolerate employees' mistakes.

(4) Let every employee know the monthly scrap rate and let them feel the benefits brought to them by reducing the scrap rate! Often summarize the reasons for scrapping, and we must know how our boards are scrapped.

A good PCB board is based on the selection of materials and needs to go through each process carefully and carefully. It cannot tolerate carelessness. The cost of materials and the precision of the process also determine the final quotation of the PCB circuit board.