North America
The American Printed Circuit Board Association (IPC) announced that in February of 20 1 1 year, the book/bill ratio of the overall printed circuit board manufacturers in North America was 0.95, which means that each product shipped in that month at $ kloc-0/00 will only receive new orders worth $95. The B/B value was lower than 1 for the fifth consecutive month, and the industrial prosperity in North America did not substantially rebound.
Japan
The Japanese earthquake will affect the supply of some PCB raw materials in the short term, which will be beneficial to the transfer of production capacity to Taiwan Province Province and the mainland in the medium and long term.
High-end PCB manufacturers accelerate the expansion of production in the mainland, and the transfer of technology, production capacity and orders to the mainland is the general trend.
Taiwan Province's Zhongshi Electronic News reported that the Japanese supply chain is broken, and the PCB factories in China and South Korea will become the big winners.
Taiwan Province Province, China
The PCB industry in Taiwan Province Province is expected to grow by 20 1 1 by 29%, and the global production capacity will be further transferred to China. According to the analysis report of China Investment Consulting, China PCB industry will enter a period of rapid growth under the situation of domestic sales growth and global production capacity continuous transfer. By 20 14, the scale of printed circuit board industry in China will increase to 4 1.92% in the world.
The gap with developed countries
After nearly half a century's efforts, China's printed circuit industry has become an indispensable foundation and guarantee for China's electronic information industry, and its output value ranks second in the world. In 2004, the total output value of PCB in China reached $810.50 billion, and the total import and export value was $8.9 billion. It is expected that it will rise to the first place in the world before long.
China is a big producer of electronic circuits and PCB, but it is still far from a strong producer. There is still a big gap between China and developed countries in PCB industry.
environmental protection
In the early years, PCB was a high-tech industry, and most foreign companies controlled technology output, which once bound and restricted the development of PCB industry. According to Time magazine, China and India are the most polluted countries in the world. In order to protect the environment, China government has been strictly formulating and implementing pollution control regulations, which has had an impact on PCB industry. Many towns are no longer allowed to expand new PCB factories, but now the development of our PCB enterprises is restricted by local conditions. The more developed the economy, the more restrictions there are. Why? Because unconsciously, circuit board enterprises have developed into big polluters, big energy consumers and big water users in the eyes of the government! Today, environmental protection and sustainable development are highly valued. Once such a "hat" is put on, circuit board enterprises will really "everyone shouts". In fact, are we big polluters, big energy consumers and big water users? Of course not! Our circuit board enterprises have low energy consumption and little pollution. We can make a comparison based on the following data: from the perspective of environmental protection, by comparing the pollution index of wastewater discharged by enterprises in various industries, we can see that: 1. The pollutants in circuit board enterprises are relatively concentrated, mainly COD and heavy metal copper pollution, and no toxic substances such as cyanide/cadmium/chromium are discharged, and no carcinogenic, teratogenic and mutagenic substances are discharged. Copper ion, the main component of heavy metal pollution, can be easily removed by conventional treatment methods, so the pollutants in the circuit board are not terrible.
2. The concentration of pollutants in circuit board enterprises is low. As we all know, the production of circuit boards requires high water consumption, and most of them use pure water, and the wastewater discharged is mainly the wastewater brought out when the board is pulled. As can be seen from the table, compared with other polluting industries, the concentration of pollutants emitted by circuit board enterprises is very low, especially COD, which is only110 of other polluting industries.
3. The wastewater discharged by circuit board enterprises has little pollution to fresh water. Due to the large demand for water in the production process and strict control, the salinity (that is, conductivity) of wastewater discharged by circuit board enterprises is much lower than that of other industries. From the protection of fresh water resources, salt is a very key indicator, and any salt is pollution to fresh water resources. Therefore, in comparison, circuit board enterprises can only be called low pollution.
To sum up, it is unrealistic for the circuit board industry to be a big polluter in the eyes of the government and society. Why is this happening? What causes the circuit board industry to be labeled as polluted? The reason for this is the following：
First, some circuit board enterprises do not attach importance to environmental protection and cleaner production.
Firstly, the problems existing in circuit board enterprises are analyzed. There are still a few circuit board companies that don't understand the importance of environmental protection and cleaner production. Wastewater treatment, wastewater reuse and cleaner production in many companies. All of them are for inspection, or for the corresponding qualification certificate, and they have not risen to the level of corporate social responsibility and law. Some time ago, we participated in the preparation of the new standards of the Ministry of Environmental Protection. During my visit to many enterprises, I found that a large number of enterprises' wastewater treatment facilities are still using the treatment technology many years ago, only treating heavy metals, while pollutants such as COD have not been specially treated, and the reclaimed water reuse system has been renovated. Many enterprises do not have a deep understanding of recycling technology and blindly pursue low-priced products. Therefore, many recycling equipment simply can't run and become a decoration.
One of these is the problem of hardware facilities, and the other is the problem of soft management, such as not handling, adding less drugs, stealing and so on. Although these behaviors are only those of a few enterprises, once they are found to exceed the standard, they will be excused for reasons such as high wastewater concentration, large fluctuation and difficult treatment in the circuit board industry, which will naturally leave the impression that the circuit board enterprises are polluting enterprises for a long time in the public mind. This is our own pollution hat.
Second, the surrounding supporting enterprises have brought us trouble.
From the perspective of environmental protection, the peripheral supporting enterprises of circuit board enterprises are mainly waste bath liquid recycling enterprises. As we all know, the waste bath solution has high pollution concentration and is difficult to treat. Many unscrupulous manufacturers collect waste bath liquid and extract valuable heavy metals, but secretly discharge the remaining waste liquid that is useless to them into the environment, causing great pollution, which makes the government and the public think that this is the pollution brought by circuit board enterprises, and the waste liquid discharged by circuit board enterprises cannot be treated. Circuit board enterprises are polluting enterprises.
Third, the lack of publicity has caused misunderstanding.
Circuit board enterprises belong to high-tech enterprises, and generally keep production secret, so the outside world does not understand the production process of circuit boards. For example, the use of cyanide, the circuit board industry only uses a small amount of cyanide in gold plating and gold wire deposition, and the discharged wastewater is discharged from the workshop after being treated by online gold recovery process, so there is basically no cyanide pollution in the wastewater, which is not comparable to the consumption and discharge concentration of alkaline copper in electroplating plants. But now, as long as cyanide is used in the production line, it is equivalent to cyanide for electroplating.
The pollution concentration of washing wastewater in circuit board enterprises is very low, and the pollution concentration of some bath solutions is high, such as ink waste liquid, fluffing agent waste liquid and etching waste liquid. Because of these high concentrations of waste liquid, many people think that these waste liquids represent the pollution degree of circuit board enterprises. In fact, the waste bath liquid of circuit board enterprises is a treasure. In addition to heavy metals, other chemicals are more important sources of cost savings for circuit board enterprises. If the government allows enterprises to recycle waste bath liquid, then circuit board enterprises have no reason to pollute enterprises.
Strengthen industry self-discipline and speed up technological innovation
Based on the above reasons, what should the circuit board industry do? We must take the initiative to take off the "hat" on our heads and create a broader development space for the industry. I think we should mainly start from the following aspects:
Strengthen industry self-discipline
Industry self-discipline should be led by our industry association, and circuit board enterprises should be investigated regularly or irregularly through various channels. Enterprises that adopt new technologies and processes of cleaner production or energy conservation and emission reduction and actually do things should be promoted and praised in the industry, and strive to provide tangible help to such enterprises in various ministries and commissions. On the contrary, enterprises that practise fraud and have no sense of social responsibility should be resolutely exposed and reported to the relevant departments for punishment. Only by preventing delays can our industry be widely recognized by the public and develop healthily.
Actively carry out technological innovation
At present, the country vigorously advocates clean production and energy-saving and emission-reduction technologies, and our circuit board enterprises should respond positively and strive for real clean production in every member unit to reduce waste discharge, including waste bath liquid. Our member units can generate economic benefits through technological innovation, and then use our actions to influence the surrounding enterprises.
Soon, the new pollutant discharge standard of our industry will be introduced soon. Enterprises should take this opportunity to actively adopt advanced sewage treatment technology, reuse water technology and clean production technology to rectify the original traditional technology, so that our enterprises can be more dynamic and quickly get rid of the label of polluting enterprises.
In the process of promoting new standards and technologies, our trade association can organize member units to study and exchange, and invite experienced experts in the industry to interpret new standards, promote new technologies and explore new technologies for enterprises. Our association can also organize a team of experts to serve the member units and solve their worries and doubts. This can not only provide a platform for enterprises to communicate, but also promote enterprises to adapt to the current industry status as soon as possible.
Intensify publicity and improve the transparency of the amount and destination of sewage discharge.
2 1 century is an open era, and the good aspects should be displayed. Our circuit board enterprises should do a good job in propaganda to let the public know about our production environment, pollution environment, pollutant discharge situation and pollutant discharge direction. As long as enterprises strictly implement cleaner production measures and seriously treat wastewater, it is not difficult for our circuit board industry to save energy, reduce emissions and treat wastewater. We welcome the supervision of society and government, which can also urge and promote PCB enterprises to better implement and improve cleaner production, energy conservation and emission reduction.
FREQUENTLY ASKED QUESTIONS
First, degreasing (temperature 60-65℃)
1. Too much foam: Too much foam will lead to abnormal quality: it will lead to poor degreasing effect. Cause: The tank liquid does not match.
2. Particulate matter composition: Particulate matter composition: The filter is broken or the high-pressure water washing of the pulverizer is insufficient, which brings dust from the outside.
3. Fingerprints can't get rid of oil: fingerprints can't get rid of oil. Reason: the degreasing temperature is low and the medicine is wrong.
2. Micro-etching (NPS 80- 120g/L H2SO4 5% temperature 25-35℃)
1, the copper surface of the plate is slightly white: the reason is that the plate is polished, the oil is not enough or polluted, and the drug concentration is low.
2. The copper surface of the plate is black: the water is not clean after degreasing and is polluted by degreasing. Copper flour red is the normal effect of micro-etching.
Three. Activation (bath color is black, temperature shall not exceed 38℃, and air cannot be pumped).
1, precipitation and clarification of bath solution:
Reasons for precipitation of bath solution:
(1) The concentration of palladium in water changes immediately, and the content is low (pre-immersion liquid is used for normal addition).
(2) The concentration of SN2+is low, the content of Cl- is low, and the temperature is too high.
(3) Too much air leads to palladium oxidation.
(4) polluted by Fe+.
2. A silvery white film appeared on the surface of the potion:
A silvery white film appeared on the surface of the potion. Cause: oxide produced by Pd oxidation.
4. Acceleration (treatment time 65438 0-2 minutes, temperature 60-65℃)
1, the hole is copper-free: reason: the accelerated treatment time is too long, and Pd is removed at the same time as Sn.
2.Pd is easy to fall off at high temperature.
5. The liquid in the chemical copper cylinder is polluted.
Cause of liquid medicine pollution: 1, insufficient water washing before PTH, Pd water brought into copper cylinder, cylinder plate fell off, cylinder did not explode for a long time, and filtration was insufficient.
Washing cylinder: soak it in 10%H2SO4 for 4 hours, then neutralize it with 10%NaOH, and finally clean it with water.
Six, hole wall can't sink copper
Reasons: 1, poor degreasing effect 2, less than 3 degumming residues and too much degumming residues.
7. After thermal shock, the hole copper is separated from the hole wall.
Reason: 1, poor slag removal 2, poor water absorption of substrate.
Eight, there are strip waterlines on the board.
Reasons: 1, unreasonable design of clothes hanger 2, excessive stirring of copper sink 3, insufficient washing after acceleration.
Nine, the temperature of chemical copper liquid
Excessive temperature will lead to rapid decomposition of electroless copper solution, change the composition of the solution and affect the quality of electroless copper plating. High temperature will also produce a lot of copper powder, resulting in copper particles on the surface and in the holes. Generally controlled at about 25-35℃.