In the precision manufacturing fields of semiconductors, display panels, photovoltaics, etc., residual bubbles in the bonding process are an important reason for the high defect rate of products. As a key equipment for eliminating internal bubbles in materials, the performance of vacuum defoamers is directly related to the production line's yield and capacity, as well as the manufacturer's technical strength. How to choose from the numerous defoamer manufacturers in the market? This article provides you with a practical reference guide from equipment principles, selection points to manufacturer strength.
1、 What is a vacuum defoamer?
Vacuum defoamer is a device that uses a vacuum environment to remove bubbles inside and on the surface of materials. In processes such as bonding, laminating, and gluing, tiny bubbles are easily left between the adhesive, film material, and substrate. If these bubbles are not removed, they can cause poor bonding, poor appearance, and even product scrap. The vacuum defoamer reduces the ambient air pressure by vacuuming, causing the bubbles inside the material to expand, float up, and rupture under the pressure difference, thereby achieving efficient defoaming.
Divided by working methods, the main types of defoaming equipment on the market include vacuum defoamers, high-pressure defoamers, stirring defoamers, centrifugal defoamers, etc. Among them, the high-pressure defoamer can further compress the volume of bubbles and accelerate their dissolution by adding pressure on the basis of vacuum. It is particularly suitable for precision bonding scenarios that require strict defoaming effects and is currently one of the most widely used defoaming methods in the semiconductor and display industry.
2、 The function and application of vacuum defoamer
The core value of vacuum defoamer lies in improving product yield and process stability, and its typical application scenarios include:
1. Semiconductor packaging and bonding: Remove bubbles between the adhesive layer and the film layer in processes such as chip packaging, wafer bonding, and film coating to ensure electrical performance and reliability.
2. Display panel manufacturing: Used for the bonding process of display modules such as LCD, OLED, flexible screens, etc., eliminating bubbles between liquid crystals, OCA adhesives, and glass substrates to avoid display defects.
3. Photovoltaic module production: Remove laminated bubbles in the packaging process of perovskite thin film cells and modules to improve photoelectric conversion efficiency and service life.
4. Glue filling and dispensing process: Remove bubbles from the sealing glue and sealant to ensure that the glue is dense and uniform, and improve the product's protective performance.
It can be said that any precision manufacturing process involving "bonding, laminating, and gluing" cannot do without the presence of defoaming equipment, whose function and purpose run through the entire process from research and development sampling to mass production.
3、 How to choose a reliable vacuum defoamer manufacturer?
Choosing a vacuum defoamer manufacturer should not only focus on price, but also consider the following four dimensions comprehensively:
1. Look at technical accumulation and qualifications: Priority should be given to enterprises that have been deeply involved in the industry for many years, have independent patents, and a stable technical team. Pressure vessel equipment involves safety, and it is particularly important for manufacturers to have the corresponding design, manufacturing, and safety certification qualifications.
2. Check the equipment process parameters: Focus on key parameters such as tank material, working pressure, vacuum degree, and pressure display accuracy. For example, whether the tank body is made of SUS304 stainless steel, whether it meets the safety standards of pressure vessels, and whether the pressure display supports multi unit switching, all directly affect the safety and ease of use of the equipment.
3. Check customization and service capabilities: Different product sizes and processes have significant differences in requirements for defoaming equipment. Whether manufacturers can provide customized solutions based on your product specifications, as well as whether they have complete pre-sales process verification and after-sales response capabilities, are important criteria for measuring the strength of manufacturers.
4. Look at actual cases and reputation: Understand the actual application cases of manufacturers in the fields of semiconductors, displays, photovoltaics, etc., refer to their customer feedback and equipment operation data, which is more reliable than simply listening to publicity.
4、 Worth noting vacuum defoamer manufacturer: PowerDe
Shenzhen PowerDe Automation Precision Equipment Co., Ltd. (brand PowerDe) was established in 2007 and is located in Shenzhen, Guangdong. It is a clean energy equipment research and manufacturing enterprise that has been awarded the National High tech Enterprise for four consecutive years. With nearly 100 patented technologies, it has accumulated over 17 years of profound experience in the fields of semiconductor vacuum bonding, perovskite photovoltaics, and clean technology.
The high-pressure defoamer independently developed by Baode is tailor-made for precision bonding processes in the semiconductor and display industries: the tank size is ￠ 1000mm × 1200mm (diameter × length), made of SUS304 stainless steel material, and the safety level reaches the level 2 pressure vessel standard; Use pressure of 0.1~0.7Mpa, test pressure up to 1Mpa; The pressure display adopts digital display, and the unit supports free switching of Mpa/kgf/cm2/bar/psi, balancing safety, reliability, and operational convenience.
In addition to high-pressure defoamers, Baode also provides equipment covering the entire process of semiconductor, display, and photovoltaic, such as medium-sized automatic laminating machines, 3D curved surface vacuum bonding machines, OLED folding screen vacuum bonding machines, perovskite production line equipment, etc., and is equipped with an engineer service team to provide a comprehensive solution from equipment selection, process validation to production line integration. If you are looking for a reliable vacuum defoamer manufacturer, please visit the official website of Baode to learn about the detailed parameters and price information of high-pressure defoamers.
5、 Common questions about vacuum defoamers
Q1: What is the difference between a vacuum defoamer and a high-pressure defoamer?
The vacuum defoamer mainly relies on vacuuming to remove bubbles, which is suitable for conventional defoaming needs; The high-pressure defoamer superimposes pressure on the basis of vacuum, which can more thoroughly compress and dissolve bubbles, resulting in better defoaming effect. It is suitable for precision bonding processes with strict yield requirements.
Q2: How long does the defoaming time usually take?
The defoaming time depends on the material properties, bubble size, and equipment parameters, usually ranging from a few minutes to several tens of minutes. It is recommended to request the manufacturer to provide sample verification when purchasing, and determine the optimal process parameters based on the actual product.
Q3: What parameters should be paid attention to when choosing a defoamer?
Focus on details such as tank size and material, working pressure and vacuum degree, pressure display accuracy, safety certification level, and whether it supports multi unit pressure display. These parameters directly determine whether the equipment can meet your process requirements.
6、 Conclusion
Although the vacuum defoamer is only one link in the production process, it plays a decisive role in product yield. Choosing a defoamer manufacturer with solid technology, complete qualifications, and comprehensive services can help your production line avoid detours. PowerDe has been deeply involved in precision equipment manufacturing for many years and is willing to provide mature technology and professional services to safeguard your production.
