图片名称

NEWS

Popular Articles

Contact Us

图片名称
图片名称

Service Hotline

13632675935

CRF

TEL：13632675935

E-mail：shaobo@sfi-crf.com

Address: 1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

Application of atmospheric pressure plasma cleaner surface treatment technology in microelectronics industry

Application of atmospheric pressure plasma cleaner surface treatment technology in microelectronics industry

Application of atmospheric pressure plasma cleaner surface treatment technology in microelectronics industry: At present, the surface treatment technology of atmospheric pressure plasma cleaners has gradually become an indispensable type of technology in the production and processing process of the microelectronics industry. However, in the fields of microelectronics and automobile manufacturing, people often call plasma surface treatment equipment "plasma cleaning machine". With the development of process technology, plasma treatment equipment is more and more widely used, and plasma treatment technology is gradually becoming Familiar to the public. On this day, we would like to communicate with you about the application of atmospheric pressure plasma cleaner plasma surface treatment technology in the microelectronics industry. If you encounter problems in the manufacturing process, I hope this article can help you. Traditional cleaning methods, such as mechanical cleaning, water cleaning, solvent cleaning, etc., are not thoroughly cleaned, and the surface of the processed material will still have a thickness of several nanometers to tens of nanometers, which affects the welding and bonding properties of the device. In industrial production, the reliability requirements of products are not strict, and there is a certain amount of cleaning residues during use. However, with the gradual improvement of the requirements for precision and reliability, more and more microelectronics manufacturers Looking for new surface cleaning methods, and atmospheric pressure plasma surface treatment technology can achieve ultra-clean and thorough cleaning of the device surface, improve product reliability, increase product yield, and reduce production costs. In terms of pollution sources, the pollutants on the surface of microelectronic devices are mainly the adhesion of foreign molecules and the two kinds of oxide layers formed naturally on the surface of the device in contact with the environment. The surface treatment technology of the plasma cleaner can effectively treat these two types of surface contaminants, but the appropriate treatment gas must be selected first. Oxygen and argon are more common in the surface treatment of electronic components. Therefore, how do oxygen plasma cleaning equipment and argon plasma cleaning equipment achieve efficient cleaning? 1. Oxygen can be ionized under the action of alternating electric field to form a large number of oxygen-containing active groups, which can effectively remove organic pollutants on the surface of the component, and at the same time can adsorb the groups to the surface of the component, effectively improving the component For example, in microelectronic packaging technology, plasma treatment before plastic packaging is also a typical application. The surface of the component after plasma treatment has a higher surface energy, which can be combined with the molding compound, and reduce the delamination and pinholes that occur during the molding process. 2. Argon gas can form argon ions, and can use the self-biased sputtering generated on the surface of the material to eliminate foreign molecules adsorbed on the surface and effectively remove surface metal oxides. Plasma treatment before wire bonding of microelectronics is a typical process. On the surface of the pad after plasma treatment, organic pollutants and oxides are removed, which can effectively improve the reliability of the welding line and the welding line, and improve the yield rate. In addition to the selection of process gas, various factors such as plasma power supply, electrode structure, reaction pressure, etc., will have different effects on the treatment effect during the surface treatment process of the atmospheric pressure plasma cleaner. Chengfeng Zhizao focuses on the research and development and manufacturing of plasma technology. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao. Chengfeng Zhizao is waiting for your call!

MORE +
What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you

What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you

What should you pay attention to when buying a plasma cleaning machine? Chengfeng Zhi has 20 years of plasma technology to answer you: Choose supplier brand? Look at the product quality? Choose after-sales service? For you who want to buy a plasma cleaner, is it a headache for you to have no relevant experience? Here are a few options for you, I hope it will help you. Plasma cleaning machine is one of the process equipment, because its unit price is higher, which is different from general consumer goods, so of course you have to weigh in many aspects before buying. Therefore, we need to understand the difference between plasma surface treatment technology and other methods. Plasma surface treatment is to ionize conductive gas into plasma and perform surface treatment on the material, so as to achieve cleaning, activation, etching and coating and other treatment purposes. In this regard, we usually make comparisons, such as flame surface treatment, centrifugal washing and other treatment methods. The differences between these are not repeated here. Whether there is a need for purchase, according to the characteristics and requirements of the sample you want to process, such as product shape, product material, weathering temperature, time, yield requirements, processing speed, etc., you need to consider the actual atmospheric plasma equipment and vacuum plasma cleaning The test effect of the machine. In addition to whether the treatment effect can be achieved, what else should be paid attention to? 1. Whether the product brand is imported or domestic: Earlier, imported plasma cleaning machine brands occupied a large share of the market due to their advantages in technology and quality. With the development in recent years, the gap between domestic plasma equipment and imported plasma equipment has gradually narrowed. The self-developed plasma equipment has also made considerable progress and has been able to meet the processing needs. 2. After-sales service: After-sales is also an important link. At this point, it is recommended that you choose a manufacturer with quality assurance. Chengfeng Zhizao has provided customers with maintenance services for plasma equipment, and Chengfeng Zhizao is also deeply touched by this. 3. Equipment price: Generally speaking, atmospheric-pressure plasma cleaners have more price advantages than low-pressure vacuum plasma cleaners. This depends on your specific situation. Chengfeng Zhizao focuses on the research and development and manufacturing of plasma technology. If you want to have a more detailed understanding of the equipment or have questions about the use of the equipment, please click on the online customer service of Chengfeng Zhizao. Chengfeng Zhizao is waiting for your call!

MORE +
Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties

Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties

Plasma cleaner assisted PLA surface grafting chitosan and its antibacterial properties: Polylactic acid (PLA) spunbonded nonwoven material is used as the base material, and a plasma cleaner is used to assist the grafting of chitosan macromolecules on the surface of PLA to improve the antibacterial properties of the PLA material. Plasma pretreatment can significantly increase the grafting rate of chitosan on the surface of PLA nonwoven materials. Polylactic acid (PLA) non-woven materials have good biocompatibility, and the waste can be completely degraded, avoiding the generation of white waste, and is conducive to sustainable development. It has been widely used in textile, medical, agricultural and other fields. However, PLA non-woven materials have certain defects in hydrophilicity and antibacterial properties, which limit their further development in the biomedical field. The modification methods of PLA mainly include copolymerization modification, blending modification, cross-linking modification and surface modification. Among many methods, plasma can be generated under normal pressure, eliminating the need for complicated vacuum systems, and only acts on the superficial layer of the material without damaging the main performance of the material. It reduces energy consumption and achieves the same effect on the material. Requirements for surface modification. Chitosan is widely present in the shells of shrimp, crabs, shellfish and other crustaceans and the cell walls of bacteria and algae. Its reserves in nature are second only to cellulose. It is a non-toxic, easily degradable, environmentally friendly natural high Molecular materials. As an antibacterial agent, chitosan has good biocompatibility, broad-spectrum antibacterial properties, high sterilization rate, and high antibacterial activity. It has antibacterial properties against Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Proteus, etc. It has received a lot of attention in the field of antibacterial finishing. Plasma technology is used to pretreat the PLA spunbond nonwoven material, and then the surface of the material is finished with chitosan to improve the antibacterial properties of the PLA spunbonded nonwoven material. The surface of the unfinished PLA spunbond nonwoven material is smooth and flat. After finishing with chitosan alone, there is only a small amount of chitosan on the surface of the material, and the distribution is uneven. After plasma-chitosan combined finishing, the surface of PLA spunbonded nonwoven material is evenly coated with a large number of chitosan molecules, and the grafting effect is obviously improved. This is mainly because during the pretreatment process of PLA spunbonded nonwoven material by the plasma cleaning machine, the surface of the material introduces active functional groups such as oxygen and ammonia to improve the chemical activity of the material surface, thereby promoting PLA and The stable chemical combination of chitosan macromolecules enables the uniform deposition rate of chitosan macromolecules on the surface of PLA spunbonded nonwoven materials. The original surface of PLA spunbond nonwoven material is relatively smooth, which is not conducive to the physical adhesion of chitosan macromolecules to it, and the PLA macromolecular chain itself lacks polar groups that are prone to chemical reactions, showing high chemical inertness. Therefore, it is difficult to chemically combine with chitosan macromolecules, resulting in a very low grafting rate of PLA spunbonded nonwoven materials in chitosan solution, even when the mass fraction of chitosan is 1%, the grafting rate reaches a high value. , And only 0.95%. After pretreatment by a plasma cleaning machine, polar functional groups such as hydroxyl and carboxyl groups are introduced on the surface of the polylactic acid, which promotes the reaction between the surface of the material and the chitosan macromolecules. Therefore, after plasma pretreatment, the grafting rate of chitosan on the surface of PLA nonwoven material is significantly improved. After pretreatment by a plasma cleaning machine, the surface of the material introduces active groups such as hydroxyl and carboxyl groups, which form a stable chemical bond with the chitosan macromolecules through hydrogen bonding, which promotes the grafting of more chitosan macromolecules On the surface of PLA nonwoven materials, the antibacterial properties of PLA nonwoven materials are significantly improved.

MORE +
How to deal with the equipment power alarm when the surface plasma treatment equipment is processing

How to deal with the equipment power alarm when the surface plasma treatment equipment is processing

How to deal with the equipment power alarm when the surface plasma treatment equipment is processing: Power supply alarms appear on low-pressure vacuum plasma surface treatment equipment. Generally, the power supply alarms can be divided into the following two situations: power supply alarms and power reflected power alarms. Don’t panic when power alarms occur when using the equipment. The processing methods are roughly The same, easier to grasp. The root of the alarm problem lies in the power supply, and the power supply of the plasma surface treatment equipment is not what we usually call the power supply. In theory, it is a plasma generator. The two main reasons for power supply alarms are excessive power supply deviation and deviation of reflected power from the power supply. What should I do if the above-mentioned power alarm information appears in a concentrated situation? This problem is also of concern to many equipment users. First, look at the alarm interface that displays the power alarm information on the display. In fact, the solution includes six small steps: 1. First check whether the parameters of the low-pressure vacuum plasma device have been reset to zero. If so, we will reset it to manual mode, and then perform a test to see if it can work normally. 2. After checking the equipment parameters, the next step is to check whether the plasma of the low-voltage vacuum plasma equipment and the coaxial cable of the counterpart, the plasma control line and other wiring are normal (use a multimeter to measure and check whether the connection is Loose). 3. Next, you need to check whether there is any deviation in the initial position of the capacitor from the plasma generator panel of the low-pressure vacuum plasma equipment. If there is any deviation, you need to reset it. The power supply brand is different and the adjustment method is slightly different. 4. Check whether the power supply of the low-voltage vacuum plasma device is set correctly, and check whether the capacitor of the matcher is normal. 5. Check whether the plasma generator settings, feedback and reflection signals of the low-pressure vacuum plasma equipment are normal. Use a multimeter to measure and check whether the terminals are tightly pressed. 6. After troubleshooting the power supply and distribution box failure, first run to see if it has returned to normal, and then set it to automatic mode. The above is how to deal with the power alarm of the power supply of plasma surface treatment equipment. If you want to learn more about the details of the product, or have questions about the use of the equipment, please click on the online customer service. Chengfeng Zhizao is waiting for your call!

MORE +
Factors affecting the physical strength of bonding

Factors affecting the physical strength of bonding

Factors affecting the physical strength of bonding: With the development of economy, people’s living standards continue to improve, and the requirements for the quality of consumer goods are getting higher and higher. Plasma technology will gradually enter the consumer goods production industry. In addition, with the continuous development of science and technology, various technical issues continue to be raised. With the continuous emergence of materials, more and more scientific research institutions have realized the importance of plasma technology and invested a lot of money in technical research. Plasma technology has played a very important role in it. However, if the factors that affect plasma cleaning and bonding are not handled properly, it will affect the bonding problems on the surface of the plasma cleaned object. Chengfeng Zhizhi Shenzhen plasma cleaning machine equipment manufacturer lists what are the influencing factors. 1. Surface roughness of plasma cleaner equipment: When the adhesive well infiltrates the surface of the material to be adhered (contact angle θ<90°), the roughening of the surface is beneficial to increase the degree of infiltration of the adhesive liquid on the surface, increase the density of the contact point between the adhesive and the material to be adhered, and thus help improve the adhesion.接 Strength. Conversely, when the adhesive does not infiltrate the material to be adhered (θ>90°), the roughening of the surface is not conducive to the improvement of the bonding strength. To 2. Surface treatment of plasma cleaner equipment: The surface treatment before bonding is the key to successful bonding, and its purpose is to obtain a strong and durable joint. Due to the existence of the "weak boundary layer" formed by the oxide layer (such as rust), chrome plating, phosphating layer, release agent, etc. of the adherend, the surface treatment of the adherend will affect the bonding strength. For example, the surface of polyethylene can be treated with hot chromic acid oxidation to improve the bonding strength. When heated to 70-80°C for 1-5 minutes, a good bondable surface will be obtained. This method is suitable for polyethylene plates, thick Wall tube etc. When the polyethylene film is treated with chromic acid, it can only be carried out at room temperature. If it is carried out at the above temperature, the surface treatment of the film will adopt plasma or micro flame treatment. When the surface of natural rubber, styrene-butadiene rubber, nitrile rubber and neoprene is treated with concentrated sulfuric acid, it is hoped that the rubber surface will be slightly oxidized. Therefore, the sulfuric acid must be thoroughly washed off in a short time after acid application. Excessive oxidation instead leaves more fragile structures on the rubber surface, which is not conducive to bonding. To When locally bonding the vulcanized rubber surface, remove the release agent from the surface treatment, and it is not advisable to use a large amount of solvent to wash, so as not to prevent the release agent from spreading to the treated surface and hinder the bonding. In the surface treatment of aluminum and aluminum alloys, it is hoped that aluminum oxide crystals will be generated on the aluminum surface, while the naturally oxidized aluminum surface is a very irregular and relatively loose aluminum oxide layer, which is not conducive to bonding. Therefore, the natural aluminum oxide layer needs to be removed. However, excessive oxidation will leave a weak layer in the bonded joint. To 3. Penetration: The bonded joints are often infiltrated into some other low-molecular molecules under the influence of the environmental atmosphere. For example, when the joint is in a humid environment or underwater, water molecules penetrate into the glue layer; the polymer glue layer is in an organic solvent, and solvent molecules penetrate into the polymer. The penetration of low molecules first deforms the adhesive layer, and then enters the interface between the adhesive layer and the adherend. Decrease the strength of the adhesive layer, which leads to the destruction of the bond. Penetration not only starts from the edge of the adhesive layer. For porous adherends, low-molecular substances can also penetrate into the adherend from the voids, capillaries or cracks of the adherend, and then penetrate into the interface, causing defects or even damage to the joint. . Penetration will not only lead to a decrease in the physical properties of the joint, but also chemical changes in the interface due to the penetration of low-molecular substances, resulting in a corrosion zone that is not conducive to bonding, making the bonding completely invalid. To 4. Migration: Adhesive materials containing plasticizers, because these small molecules have poor compatibility with polymer macromolecules, they are easy to migrate from the polymer surface or interface. If the migrated small molecules accumulate on

MORE +
Ten tips for disassembling and assembling the vacuum oil pump of the vacuum plasma surface treatment machine cannot be ignored

Ten tips for disassembling and assembling the vacuum oil pump of the vacuum plasma surface treatment machine cannot be ignored

Ten tips for disassembling and assembling the vacuum oil pump of the vacuum plasma surface treatment machine cannot be ignored: The vacuum system of the vacuum plasma surface treatment machine is composed of connecting pipes such as a vacuum pump, a vacuum reaction chamber, a vacuum gauge, a baffle valve, an intake pipe, and a flange. As an important part of the vacuum system, how should the vacuum pump be disassembled and assembled? What else needs attention? Chengfeng Zhizao will give you a detailed explanation. If there is no special requirement for the vacuum pump in the vacuum plasma surface treatment machine, most of the rotary vane oil pumps can be used. The working principle of the rotary vane oil pump is to mechanically pump the vacuum reaction chamber. When the vacuum degree can satisfy the plasma discharge, the process gas is kept in and the plasma reaction by-products are removed to ensure the stability of the plasma discharge. After grasping the correct method, the maintenance of the vacuum plasma surface treatment oil-type vacuum pump is actually very simple. Chengfeng Zhizao organized the disassembly and assembly steps of the vacuum plasma surface treatment oil pump. Disassembly and assembly of the vacuum pump oil storage tank: 1. Before disassembling the oil tank of the vacuum pump, discharge the vacuum pump oil first, and tighten the oil drain screw with an Allen wrench to discharge the vacuum oil in the vacuum pump; 2. Use an Allen wrench to remove the fastening screws of the vacuum pump oil tank; 3. When disassembling the fuel tank, be careful not to damage the gasket of the fuel tank; Gloves, masks and bags containing waste oil are the three necessary small items for vacuum pump maintenance. Various industries and products, the waste gas produced by plasma cleaning and various dirt produced by the reaction of vacuum pump oil, pay special attention to whether there are corrosive and toxic gases and liquids that harm the human body. Disassemble the exhaust valve of the vacuum pump of the vacuum plasma surface treatment machine: 1. Remove the protective cover of the exhaust valve plate, fold off the sturdy protective cover screw, and remove the protective cover, taking care not to damage the sealing ring; 2. Disassemble the pressure plate of the exhaust valve plate. 3. Remove the exhaust valve piece. Disassemble the vacuum pump rotor of the vacuum plasma surface treatment machine: 1. Remove the fastening screws of the rotor; 2. Remove the small screw cap and check the wear of the small screw cap at the same time; 3. Disassemble the cylinder cavity of the second-stage rotor, check the wear of the second-stage rotor, and check whether the oil circuit is blocked. Remove the check valve of the vacuum pump of the vacuum plasma surface treatment machine: 1. Remove the fastening screw of the air inlet of the vacuum pump, take out the air inlet, and be careful not to damage the sealing ring; 2. Take out the limit circlip of the check valve, take out the check valve, check whether the air passage and oil passage are blocked, check whether the check valve has excessive resistance and whether there is any damage; if the check valve is stuck, when it is removed Be careful not to damage the pump body. The assembly of the vacuum pump: After the internal cleaning of the vacuum pump is completed, install the parts one by one in the reverse order of disassembly and assembly. Pay attention to inspection during assembly to avoid missing small parts and ensure that each part is installed in place. Have you learned how to disassemble and assemble the oil-type vacuum pump for vacuum plasma surface treatment? It should be noted that you must not miss during assembly, please check repeatedly to ensure that every working part is installed in place. If you are interested in plasma cleaners or want to know more details, please click on the online customer service consultation of Chengfeng Zhizao, Chengfeng Zhizao is waiting for your call!

MORE +
< 1...303132...44 > proceed page
图片名称

CRF

National Service Hotline

136 3267 5935

Contact Email

shaobo@sfi-crf.com

Address:1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

图片名称

Add WeChat
Get related information

Links

Apply to exchange friend links

Copyright © Shenzhen Chengfeng Smart Co.

京ICP备10002622号-38

粤公网安备 44030602005200号

图片名称

Cheng Feng Zhi Zuang a focus on plasma research and development for 20 years

We

The services of

Inquire for free sample testing

1-to-1 program customization

24-hour online after-sales service

Source manufacturer

Get the program
%{tishi_zhanwei}%
图片名称

Scan the code for information

诚峰智造