pcb double panel how much is one square centimeter

As the manufacturing industry is becoming more and more difficult, the price of products has become a concern of the procurement and business owners, electronic products are no exception, so how much does PCB double panel need a square centimeter, the following Xiaobian to say in detail.

How much is pcb double panel

PCB board purchasing staff in PCB procurement, often do not know how the PCB price is composed! It is not convenient for inquiry and procurement, here is a brief introduction of the price of the basic components of the circuit board.

One. Plate

1, plate material: FR-4, CEM-3, this is our common double panel and multi-layer plate plate, his price is also related to plate thickness and plate middle copper foil thickness, and FR-I, CEM-1 these are our common single panel material, and the price of this material is also with the above double-sided, multi-layer board is very different.

2, plate thickness, its thickness we commonly have: 0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 1.6, 2.0, 2.4, 3.0, 3.4, and our regular plate thickness price difference is not very big.

3, copper foil thickness will also affect the price, copper foil thickness is generally divided into: 18(0.5OZ), 35(1OZ), 70(2OZ), 105(3OZ), 140(4OZ), etc. (oz is the abbreviation of the symbol ounce, known in Chinese as "ounce" (Hong Kong translation as "an ounce") is an imperial unit of measurement, also known as an ounce as a unit of weight. 1oz=28.35g(g))

4. The suppliers of raw materials are common and commonly used: Shengyi Jiantao International, etc

Drilling relatively which price impact is not as big as the plate, but too many holes too small that the price has to be calculated separately, such as hole less than 0.1 below the price will be higher.

Ii. Process cost:

1. Depending on the circuit on the PCB, if the line is dense and thin (below 4/4mm), the price will be calculated separately.

2. In addition, if the board surface has BGA, the cost will also rise relatively. Some PCB manufacturers are BGA.

3, to see what is the surface treatment process, we commonly have: spray lead tin (hot air leveling), OSP(environmental protection board), spray pure tin, tin, silver, gold and so on, of course, the surface process is different, the price will be different.

4, also look at the process standard; We commonly use IPC2 level, but some customers have higher requirements, (such as Japanese) we commonly include: IPC2, IPC3, enterprise standard, military standard and so on, of course, the higher the standard, the higher the price will be.

Three. Appearance

Finally, it depends on the appearance of PCB. In general, we usually mill the appearance of PCB, but the appearance of some boards is very complicated, so we have to use the opening mold to flush, which will cost a set of mold.

In summary, the basic factors affecting the price of PCB board are as follows:

1. Board size

2. Number of layers

3. Surface Treatment (immersion gold, lead free HAL, OSP...)

Step 4 Measure

5. Plate (normal FR4, Rogers, PTFE...)

There are other factors that have some effect on the price

1. The distance between cables is too small

2. There are many holes

3. The minimum aperture is too small

Step 4: Mold

5. Tight tolerances

6. Plate thickness aperture ratio

6. Special requirements (the finished product is too thin or too thick, thick copper plating, paste can not repeat bar code...)

After understanding the above factors affecting the price of pcb double panels, we will be clear that the quotation needs to be reported in detail according to the data. Here, Xiaobian takes the thickness of 1.0 board as an example, FR4 board, green oil and white characters, and lead spray tin. If our company produces it, it needs 0.023 yuan/square centimeter.