The Components Of PCB Processing Price What Is The Price Of PCB?

The components of PCB processing price What is the price of PCB?

The diversity of PCB processing prices has its inherent inevitable factors. This article can only provide a rough price range for reference. Of course, the specific price should be directly contacted with the manufacturer.

Part 1: Various factors affecting the price of a PCB board

The price of PCB is something that many buyers have been confused about. Many people also wonder how these prices are calculated when placing orders online. Let's talk about the components of PCB prices together.

1. Different materials used in PCB cause price diversity

Ordinary double-sided panels are taken as an example. The sheet materials generally include FR4 (Shengyi, Kingboard, Guoji, three prices from top to bottom), the thickness of the board varies from 0.2mm to 3.0mm, and the thickness of copper varies from 0.5oz to 3oz. All of these have caused a huge price difference in sheet metal; in terms of solder resist ink, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil.

2. Different surface treatment processes cause price diversity

The common ones are: OSP (anti-oxidation), leaded HASL, lead-free HASL (environmental protection), gold plating, immersion gold and some combined processes, etc. The price of the above processes becomes more expensive as they go forward.

3. The price diversity caused by the different difficulty of PCB itself

There are 1000 holes on both circuit boards, and the hole diameter of one board is greater than 0.2mm and the hole diameter of the other board is less than 0.2mm, which will form different drilling costs; if the two circuit boards are the same, but the line width and line spacing are different, one The average of each type is greater than 4mil, and the average of one type is less than 4mil, which will also cause different production costs; secondly, there are some designs that do not follow the ordinary board process, such as half-holes, buried blind holes, holes in the plate, and buttons. Plate printing carbon oil.

4. Different thickness of copper foil causes price diversity

Common copper and platinum thicknesses are: 18um (1/2OZ), 35um (1OZ), 70um (2OZ), 105um (3OZ), 140um (4OZ), etc. The thickness of the above copper foil becomes more expensive.

5. Customer quality acceptance criteria

The commonly used ones are: IPC2, IPC3 , enterprise standard, military standard, etc. The higher the standard, the higher the price will be.

6. Mold fee and test frame

(1) Mold cost, for samples and small batches, the general board factory adopts the drilling and milling shape, and will not charge additional milling fees. When making large batches, it is required to open the mold and punch the board, so there is a set of mold costs. The general quotation of the board factory is above 1000 RMB.

(2) Test fee: Flying probe test is generally used for prototypes, and the board factory generally charges a test fee ranging from 100-400 yuan; for batches, a test frame is required for testing, and the quotation of the test frame is generally between 1000-1500 yuan.

7. Price differences caused by different payment methods

The shorter the payment method, such as cash payment, the lower the price.

8. Order quantity/delivery date

(1) The smaller the quantity, the more expensive the price is, because even if it is to make 1PCS, the board factory has to make engineering materials and produce film, which process is indispensable

(2) Delivery date: The data delivered to the PCB factory must be complete (data, board layers, board material, board thickness, surface treatment, ink color, character color and some special requirements should be written clearly)

It is not difficult to see from the above discussion that the diversity of PCB processing prices has its inherent inevitable factors. This article can only provide a rough price range for reference. Of course, the specific price should be directly contacted with the manufacturer.

Part 2: Quotation of various factors

For PCB, we have a set of valuation formula (that is, the board utilization method) as follows:

Based on 1 square meter plate, its size is*

Assuming that the length of the PCB to be evaluated is L and the width is H. The substrate of 1 square meter can produce this board

The quantity is (1020/L+5)*(1020/H+5)=Z (that is, the typesetting quantity)

Unit price =X/Z

X is the following price:

Material:

1L FR-1 Price per square meter (including processing fee):

2L FR-4 price per square meter (including processing fee):

4L FR-4 price per square meter (including processing fee):

6L FR-4 price per square meter (including processing fee):

8L FR-4 price per square meter (including processing fee):

10L FR-4 price per square meter (including processing fee):

12L FR-4 price per square meter (including processing fee):

Number of layers:

The first unit price of 2-layer board = (length*width*0.12*quantity+length*width*0.12*4+80)/quantity

The second unit price of 2-layer board = (length*width*0.12*quantity+80)/quantity

Four-layer board 1 unit price = (length*width*0.6*quantity+length*width*0.12*6+1500+300)/quantity

Four-layer board 2 times unit price = (length*width*0.6*quantity+300)/quantity

Six-layer board 1 unit price = (length*width*0.8*quantity+length*width*0.12*8+1800+300)/quantity

Six-layer board 2 times unit price = (length*width*0.8*quantity+300)/quantity

PCB Price Estimation

PCB is the pcb board quotation calculated by multiplying the area of ​​the board by the following unit price , which can be used for your reference:

Process:

General single-side HASL: 0.035/square M

Double-sided HASL: 0.45/square M for thickness above 1.2

Below 1.2 is 0.41/square M

Double-sided gold-plated thickness of 1.6 or more 0.48/square M

Below 1.6 0.45/square M

PCB quotations include sample and batch board quotations

Sample quotes are divided into ordinary models and allegro

The delivery time of ordinary prototypes depends on the number of layers. Generally, one day is enough for single-sided, three days for double-sided, and several days to ten days for multi-layer.

quote is

Single-sided engineering fee 150 yuan + plate making fee 0.04 yuan / square centimeter + film fee + 0.05 yuan / square centimeter

Double panel engineering fee 250 yuan + board making fee 0.05 yuan / square centimeter + film fee + 0.05 yuan / square centimeter.

Four-layer board project cost 600 yuan + board making fee 0.01 yuan / square centimeter + film fee + 0.05 yuan / square centimeter.

Depending on the difficulty of Kanban, some factories will also add a test fee. The test fee is generally 0.002 yuan/point

The delivery time of the Allegro board is shorter. But an urgent board will be added on the basis of the ordinary board. Shenzhen usually charges 200-400 yuan per item for one-day expedited double-sided boards, and 600-1000 yuan/day for four-story urgent boards. 800-1000 yuan per item for three-day rush on the sixth floor

Batches are divided into small batches and large batches

The unit price of small quantity boards is much higher than that of large quantities. For example, double-sided 1.6MM boards can be produced in large quantities at 450 yuan/square meter. If it is not small quantities, PCB processing manufacturers may not be able to achieve more than 500 yuan/square Happy to take orders.