PCB Performs Accelerated Tests of Ion Migration and CAF Through HAST

PCB In order to ensure its long-term use quality and reliability, need to carry out SIR (Surface Insulation Resistance) surface insulation resistance test, through its test method to find out whether the PCB will occur MIG(ion migration) and CAF(glass fiber anode leakage) phenomenon, Ion migration is performed in a humidified state (e.g. 85℃/85%R.H.) with a constant bias (e.g. 50V), the ionized metal moves between the opposite electrodes (cathode to anode growth), the relative electrode is reduced to the original metal and precipitated dendritic metal phenomenon, often resulting in short circuit, ion migration is very fragile, the current generated at the moment of power will make the ion migration itself dissolves and disappears, MIG and CAF commonly used norms: IPC-TM-650-2.6.14., IPC-SF-G18, IPC-9691A, IPC-650-2.6.25, MIL-F-14256D, ISO 9455-17, JIS Z 3284, JIS Z 3197... But its test time is often 1000h, 2000h, for the cyclical products slow emergency, and HAST is a test method is also the name of the equipment, HAST is to improve environmental stress (temperature, humidity, pressure), in the unsaturated humidity environment (humidity: 85%R.H.) Speed up the test process to shorten the test time, used to assess PCB pressing, insulation resistance, and the moisture absorption effect of related materials, shorten the test time of high temperature and humidity (85℃/ 85%R.H. /1000h→110℃/ 85%R.H. /264h), the main reference specifications of PCB HAST test are: JESD22-A110-B, JCA-ET-01, JCA-ET-08.

HAST Accelerated Life Mode:

★ Increase temperature (110℃, 120℃, 130℃)

★ Maintain high humidity (85%R.H.)

Taken the pressure (110 ℃ / / 0.12 MPa, 120 ℃, 85% / 85% / 85% 0.17 MPa, 130 ℃ / / 0.23 MPa)

★ Extra bias (DC)

HAST test conditions for PCB:

1. Jca-et-08:110, 120, 130 ℃/85%R.H. /5 ~ 100V

2. High TG epoxy multilayer board: 120℃/85%R.H./100V, 800 hours

3. Low inductance multilayer board: 110℃/85% R.H./50V/300h

4. Multi-layer PCB wiring, material: 120℃/85% R.H/100V/ 800h

5. Low expansion coefficient & low surface roughness halogen-free insulation material: 130℃/ 85% R.H/12V/240h

6. Optically active covering film: 130℃/ 85% R.H/6V/100h

7. Heat hardening plate for COF film: 120℃/ 85% R.H/100V/100h

Lab Companion HAST High Acceleration Stress Test System (JESD22-A118/JESD22-A110)

The HAST independently developed by Macro Technology fully owns independent intellectual property rights, and the performance indicators can fully benchmark foreign brands. It can provide single-layer and double-layer models and two series of UHAST BHAST. It solves the problem of long-term dependence on imports of this equipment, long delivery time of imported equipment (up to 6 months) and high price. High Accelerated Stress Testing (HAST) combines high temperature, high humidity, high pressure, and time to measure the reliability of components with or without electrical bias. HAST testing accelerates the stress of more traditional testing in a controlled way. It is essentially a corrosion failure test. Corrosion-type failure is accelerated, and defects such as packaging seals, materials and joints are detected in a relatively short time.

Reliability of Ceramic Substrate

Ceramic PCB (Ceramic Substrate) refers to a special process plate where copper foil is directly bonded to the surface (single or double) of alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate at high temperature. The ultra-thin composite substrate has excellent electrical insulation performance, high thermal conductivity, excellent soldering and high adhesion strength, and can be etched into a variety of graphics like PCB board, with great current carrying capacity. Therefore, the ceramic substrate has become the basic material of high-power electronic circuit structure technology and interconnect technology, which is suitable for products with high caloric value (high-brightness LED, solar energy), and its excellent weather resistance can be applied to harsh outdoor environments.

Main application products: high power LED carrier board, LED lights, LED street lights, solar inverter

Ceramic substrate features:

Structure: Excellent mechanical strength, low warping, thermal expansion coefficient close to silicon wafer (aluminum nitride), high hardness, good processability, high dimensional accuracy

Climate: Suitable for high temperature and humidity environment, high thermal conductivity, good heat resistance, corrosion and wear resistance, UV& yellowing resistance

Chemistry: Lead-free, non-toxic, good chemical stability

Electrical: high insulation resistance, easy metallization, circuit graphics and strong adhesion

Market: Abundant materials (clay, aluminum), easy to manufacture, low price

PCB material thermal characteristics comparison (conductivity) :

Glass fiber board (traditional PCB) : 0.5W/mK, aluminum substrate: 1~2.2W/mK, ceramic substrate: 24[alumina]~170[aluminum nitride]W/mK

Material heat transfer coefficient (unit W/mK) :

Resin: 0.5, alumina: 20-40, silicon carbide: 160, aluminum: 170, aluminum nitride: 220, copper: 380, diamond: 600

Ceramic substrate process classification:

According to the line ceramic substrate process is divided into: thin film, thick film, low temperature co-fired multi-layer ceramic (LTCC)

Thin Film Process (DPC) : Precise control of component circuit design (line width and film thickness)

Thick film process (Thick film) : to provide heat dissipation and weather conditions

Low temperature co-fired multilayer ceramic (HTCC) : The use of glass ceramics with low sintering temperature, low melting point, high conductivity of precious metal co-fired characteristics, multi-layer ceramic substrate) and assembly.

Low temperature co-fired multilayer ceramics (LTCC) : Stack several ceramic substrates and embed passive components and other ics

Thin film ceramic substrate process:

· Pretreatment → sputtering → photoresistance coating → exposure development → line plating → film removal

· Lamination → hot pressing → degreasing → substrate firing → circuit pattern formation → circuit firing

· Lamination → surface printed circuit pattern → hot pressing → degreasing → co-firing

· Printed circuit graphics → lamination → hot pressing → degreasing → co-firing

Ceramic substrate reliability test conditions:

Ceramic substrate high temperature operation: 85℃

Ceramic substrate low temperature operation: -40℃

Ceramic substrate cold and thermal shock:

1. 155℃(15min)←→-55℃(15min)/300cycle

2. 85 ℃ (30 min) please - - 40 ℃ (30 min)/RAMP: 10 min (12.5 ℃ / min) / 5 cycle

Ceramic substrate adhesion: Stick to the surface of the board with 3M#600 tape. After 30 seconds, tear quickly in a 90° direction with the surface of the board.

Ceramic substrate red ink experiment: Boil for one hour, impermeable

Test equipment:

1.High and low temperature humid heat test chamber

2. Three-box gas type cold and heat shock test chamber

Structural characteristics of temperature and humidity control box

The full name of the temperature and humidity control chamber is "Constant Temperature and Humidity Test Chamber", which is an essential testing equipment in aviation, automotive, home appliances, scientific research and other fields. It is used to test and determine the parameters and performance of electrical, electronic and other products and materials after high temperature, low temperature, humidity and heat or constant temperature environment changes. It can be mainly divided into "desktop" and "vertical" according to testing requirements and standards, with the difference being the temperature and humidity that can be achieved. The vertical type can be used for low temperature and drying below room temperature, while the desktop type can only be used for temperature and high humidity above room temperature.

Suitable for various small electrical appliances, instruments, materials, and components for wet heat testing, it is also suitable for conducting aging tests. This test chamber adopts the most reasonable structure and stable and reliable control method currently available, making it aesthetically pleasing, easy to operate, safe, and with high precision in temperature and humidity control. It is an ideal equipment for conducting constant temperature and humidity tests.

1) The test box body is in the form of an integral structure, with the refrigeration system located at the lower rear of the box and the control system located at the upper part of the test box.

(2) Inside the air duct interlayer at one end of the studio, there are devices such as heaters, refrigeration evaporators, and fan blades distributed; On the left side of the test box, there is a Ø 50 cable hole, and the test box is a single door (stainless steel embedded door handle)

(3) The double-layer high temperature and anti-aging silicone rubber seal can effectively ensure the temperature loss of the test chamber

(4) There are observation windows, frost prevention devices, and switchable lighting fixtures on the box door. The observation window adopts multi-layer hollow tempered glass, and the inner adhesive sheet conductive film is heated and defrosted. The lighting fixtures use imported brand Philips lamps, which can effectively observe the experimental changes in the studio from all angles.

Dear customer:

Hello, our company is a high-quality development team with strong technical strength, providing high-quality products, complete solutions, and excellent technical services to our customers. The main products include walk-in constant temperature and humidity testing chambers, UV accelerated aging testing machines, rapid temperature change testing chambers, walk-in environmental testing chambers, UV aging testers, constant temperature and humidity chambers, etc. Our company adheres to the principle of building a business with integrity, maintaining quality, and striving for progress. With a more determined pace, we continuously climb new heights and contribute to the national automation industry. We welcome new and old customers to confidently choose the products they like. We will serve you wholeheartedly!

Temperature control of solar simulation irradiation test chamber

The test chamber uses an artificial light source combined with a G7 OUTDOOR filter to adjust the system light source to meet the requirements of IEC61646 for solar simulators by simulating the radiation in natural sunlight. The above system light source is used to conduct the IEC61646 photoaging test on the solar cell module, and the temperature on the back of the module needs to be constantly controlled between 50 ± 10℃during the test. Can automatically monitor temperature; Configure a radiometer to control the irradiance of light, ensuring it remains stable at a specified level, while also controlling the testing time.

During the ultraviolet light cycle period in the solar simulation irradiation test chamber, photochemical reactions are usually not sensitive to temperature. But the rate of any subsequent reaction depends on the temperature. The rate of these reactions accelerates with increasing temperature. Therefore, controlling the temperature during UV exposure is crucial. In addition, it is necessary to ensure that the temperature of the accelerated aging test is consistent with the highest temperature at which the material is directly exposed to sunlight. In the solar simulation irradiation test chamber, the UV exposure temperature can be set at any temperature between 50 ℃ and 80 ℃ based on the illuminance and ambient temperature. The UV exposure temperature is adjusted by a sensitive temperature controller and blower system to achieve excellent uniformity in the temperature of this test chamber.

Dear customer:

Hello, our company is a high-quality development team with strong technical strength, providing high-quality products, complete solutions, and excellent technical services to our customers. The main products include walk-in constant temperature and humidity testing chambers, UV accelerated aging testing machines, rapid temperature change testing chambers, walk-in environmental testing chambers, UV aging testers, constant temperature and humidity chambers, etc. Our company adheres to the principle of building a business with integrity, maintaining quality, and striving for progress. With a more determined pace, we continuously climb new heights and contribute to the national automation industry. We welcome new and old customers to confidently choose the products they like. We will serve you wholeheartedly!

UV aging tester testing equipment

The structure of the test chamber is made of corrosion-resistant metal materials, including 8 fluorescent ultraviolet lamps, a water tray, a test sample holder, and temperature and time control systems and indicators.

2. The lamp power is 40W and the lamp length is 1200mm. The range of the uniform working area of the test box is 900 × 210mm.

3. The lights are installed in four rows, divided into two rows. The tubes of each row of lights are installed in parallel, and the center distance of the lights is 70mm.

4. The test sample is fixedly installed at a position 50mm away from the surface of the lamp surface. The test sample and its bracket form the inner wall of the box, and their backs are exposed to cooling air at room temperature due to the temperature difference between the test sample and the air inside the box. To create stable condensation conditions on the surface of the test sample during the condensation stage, the test chamber should generate natural air convection through the outer wall of the chamber and the channel of the test sample at the bottom.

5. Water vapor is generated by a water tray located at the bottom of the heating box, with a water depth not exceeding 25mm, and equipped with an automatic water supply controller. The water tray should be regularly cleaned to prevent the formation of scale.

6. The temperature of the test chamber is measured by a sensor fixed on a black aluminum plate (blackboard) with a width of 75mm, height of 100mm, and thickness of 2.5mm. The blackboard should be placed in the central area of the exposure test, and the measurement range of the thermometer is 30-80 ℃ with a tolerance of ± 1 ℃. The control of lighting and condensation stages should be carried out separately, and the condensation stage is controlled by the heating water temperature.

7. The test chamber should be placed in a test room with a temperature of 15-35 ℃, 300mm away from the wall, and should prevent the influence of other heat sources. The air in the test room should not circulate strongly to avoid affecting the lighting and condensation conditions.

Dear customer:

Hello, our company is a high-quality development team with strong technical strength, providing high-quality products, complete solutions, and excellent technical services to our customers. The main products include walk-in constant temperature and humidity testing chambers, UV accelerated aging testing machines, rapid temperature change testing chambers, walk-in environmental testing chambers, UV aging testers, constant temperature and humidity chambers, etc. Our company adheres to the principle of building a business with integrity, maintaining quality, and striving for progress. With a more determined pace, we continuously climb new heights and contribute to the national automation industry. We welcome new and old customers to confidently choose the products they like. We will serve you wholeheartedly!

Are you tired of the hassle and mess of manually cutting ceramic tiles during your home renovation projects? Look no further! The ceramic wet tile cutting machine is here to revolutionize your tile cutting experience. In this article, we will explore the benefits of using the best tile cutter for ceramic tiles, discuss ceramic tile cutter prices, and highlight the advantages of investing in a ceramic wet tile cutter. So, let’s dive in!

What makes the ceramic wet tile cutting machine the best option for cutting ceramic tiles?

The ceramic wet tile cutting machine is specifically designed to cut through ceramic tiles with precision and ease. Its superior cutting capability makes it the perfect tool for both amateur DIY enthusiasts and professional contractors. With its ability to make clean, accurate cuts, this tile cutter ensures the tiles fit perfectly into your space, giving your project a polished and professional finish.

How does the ceramic tile cutter price compare to other alternatives?

While it’s true that the initial cost of a ceramic tile cutter may seem higher than a traditional manual cutter, the long-term benefits outweigh the price difference. Investing in a high-quality ceramic tile cutting machine saves you time, effort, and material wastage. Additionally, it minimizes the risk of damaging the tiles during the cutting process, which can be costly to replace.

What are the advantages of using a ceramic wet tile cutter?

One of the significant advantages of a ceramic wet tile cutter is its ability to operate with water. The water acts as a coolant, reducing the heat generated during cutting, and helps to control dust, resulting in a cleaner and healthier working environment. This feature also extends the life of the cutting blade, reducing the need for frequent replacements.

Furthermore, the wet cutting process ensures smooth cuts without chipping or cracking the tiles. This is particularly beneficial when working with delicate or expensive ceramic tiles. The precise and controlled cuts achieved with a ceramic wet tile cutter eliminate the need for additional finishing work, saving you time and effort.

What is the price range for ceramic tile cutting machines?

The ceramic tile cutting machine prices vary based on factors such as brand, features, and cutting capacity. Entry-level models can be found for around $100, while professional-grade machines with advanced functionalities may cost several hundred dollars. It’s essential to identify your specific needs and budget to choose the best ceramic tile cutting machine that fulfills your requirements.

In conclusion, if you are looking for a superior tile cutting experience, the ceramic wet tile cutting machine is the way to go. Its precision, ease of use, and ability to make clean cuts without damaging the tiles make it the best tile cutter for ceramic tiles. Though the initial investment may be higher, the long-term benefits, including time and material savings, make it well worth the price. So, say goodbye to the manual tile cutting struggles and embrace the convenience and efficiency of the ceramic wet tile cutting machine!

EPE Foam pipe extrusion machines are advanced equipment designed for the continuous production of extruded polyethylene (EPE) foam insulation pipes.

These machines are engineered to provide high-quality insulation for air conditioning ducts, ensuring energy efficiency and thermal comfort. With precise temperature control and extrusion capabilities, they produce uniform, lightweight, and durable EPE foam pipes that are easy to install and maintain. Ideal for HVAC applications, these machines streamline the manufacturing process, delivering consistent and reliable insulation solutions.

EPE Foam pipe extrusion machines are utilized in a variety of applications primarily due to their ability to produce extruded polyethylene (EPE) foam insulation pipes. Here are some key applications:

1、Air Conditioning Systems: They are commonly used for insulation of air conditioning ducts to enhance energy efficiency and maintain thermal comfort.

2、HVAC Industry: These machines are integral to the heating, ventilation, and air conditioning industry for producing insulation that helps in reducing heat loss or gain.

3、Construction and Building: EPE foam pipes are used for thermal insulation in construction projects to improve energy conservation in buildings.

4、Packaging Industry: Due to their lightweight and cushioning properties, EPE foam pipes can be used for packaging materials to protect fragile goods during transportation.

5、Industrial Insulation: They serve as insulators in various industrial applications where temperature control and energy efficiency are crucial.

6、Manufacturing of Profiles: The extrusion process allows for the creation of various foam profiles, which can be tailored for specific uses in different industries.

7、Environmental Protection: EPE foam is recyclable, contributing to the environmental sustainability of products that use it.

These applications highlight the versatility and importance of EPE Foam pipe extrusion machines in modern industry, particularly in sectors where thermal insulation and energy conservation are critical.

In today's fast-paced world, packaging and cushioning materials play a vital role in protecting products during transportation and storage. Expanded polyethylene (EPE) foam has become a versatile and efficient choice for all walks of life. The foam products produced by Fuliyuan's high-quality EPE foaming machines have a series of advantages. For example, light product weight, better product density, harder product hardness, more material savings, lower energy consumption, better product flatness, and so on.

EPE foam has excellent cushioning properties, making it an ideal material for protecting delicate and fragile items. The closed-cell structure of EPE foam enables it to absorb and disperse impact forces, thereby reducing the risk of product damage. Fuliyuan Machinery's cutting-edge EPE foam production technology ensures consistency in cell structure and density, resulting in excellent cushioning properties.

One of the main advantages of EPE foam products is their light weight. Unlike traditional packaging materials such as wood or metal, EPE foam provides excellent protection at a very low weight. This lightweight property not only makes handling and transportation more convenient, but also helps save costs as it reduces transportation expenses.

The EPE foam products produced by our EPE sheet machine are known for their flexibility and adaptability to a variety of applications. The foam can be easily cut, molded and shaped into different shapes, which can be customized to specific packaging requirements. From small electronics to large appliances, EPE foam can be tailored to provide the best fit, ensuring maximum product protection.

EPE foam has inherent moisture resistance, which protects products from water damage during transportation or storage. This feature is essential for industries that handle sensitive electronics, pharmaceuticals or food. In addition, EPE foam has excellent thermal insulation properties, which prevents temperature fluctuations that may affect the integrity and functionality of packaged items.

Fuliyuan Machinery produces environmentally friendly EPE foam products. EPE foam is non-toxic, recyclable, and does not emit harmful gases when incinerated. Its recyclability reduces waste generation and promotes a circular economy, making it a responsible choice for environmentally conscious businesses.

EPE foam can be applied in a variety of industries. It is commonly used in electronics, automobiles, furniture, medical devices, and e-commerce packaging. Fuliyuan Machinery produces high-quality EPE foam products that meet the specific needs of each industry, ensuring optimal performance and customer satisfaction.

An EPE Foam Fruit Net Extrusion Machine is a machine that produces EPE Foam Fruit Netting. The function like EPE Foam Sheet Extrusion Machine. EPE Foam, also known as Expanded Polyethylene Foam, is a versatile material used in a wide variety of applications due to its excellent cushioning and insulating properties.One of the most popular uses of EPE Foam is in the manufacture of Fruit Netting, which is widely used to protect fragile fruits during transportation, but has other applications that should not be overlooked. One of the most popular uses of EPE foam is in the manufacture of fruit nets.

EPE foam fruit nets are commonly used to protect fruits and vegetables during transportation. Its shock-absorbing properties ensure that produce arrives at its destination undamaged. It can be custom cut to fit the specific size and shape of the fruit or vegetable, ensuring a tight fit.

EPE Foam Fruit Netting can be used to add a decorative touch to your fruit basket or gift basket. It is available in a variety of colors and can be custom cut to create unique patterns and designs.

EPE Foam Fruit Netting is an excellent gardening material for supporting and protecting young plants. Its soft texture prevents damage to fragile stems and branches, while its moisture-resistant properties ensure that plants remain healthy and well hydrated.

EPE Foam Fruit Netting is also used as a packaging material for electronics such as smartphones, tablets and laptops. Its shock absorbing properties protect delicate electronic components from damage during transportation.

Overall, EPE Foam Fruit Netting is an excellent packaging material that can be used in a wide range of industries. Its versatility, affordability and eco-friendly nature make it a popular choice for manufacturers, retailers and consumers.

As the demand for efficient and environmentally friendly packaging solutions continues to grow, the market potential of EPE foaming machine has also grown significantly. Known for its lightweight, cushioning and insulating properties, EPE foam has become an indispensable material in various industries including electronics, automotive, medical and consumer products.

1. Growth of e-commerce and shipping:

The rapid growth of the e-commerce industry and subsequent surge in global shipping activities has driven the demand for protective packaging materials. EPE foam is a versatile material with excellent cushioning properties to protect delicate and fragile items during transportation. The EPE foaming machine is capable of efficiently producing custom-sized foam boards and packaging inserts to meet the specific requirements of the e-commerce and shipping industries.

2. Shift to sustainable packaging:

In recent years, there has been a significant shift towards sustainable packaging solutions to reduce environmental impact. EPE foam is the first choice for many companies because it is recyclable, non-toxic and does not release harmful emissions during the production process. EPE foaming machine facilitates the production of environmentally friendly packaging materials and meets the growing demand for sustainable alternatives.

3. Product protection awareness continues to increase:

As companies strive to improve customer satisfaction and reduce product damage, the importance of effective product protection is gaining increasing attention. EPE foam has excellent shock-absorbing capabilities, providing reliable protection against impact and shock during handling and transportation. EPE foaming machine allows manufacturers to produce customized foam packaging solutions to ensure product safety and integrity.

4. Growing demand for insulation materials:

The construction industry has seen a surge in demand for insulation materials to improve energy efficiency and reduce carbon footprints. EPE foam has excellent insulating properties and is increasingly used in residential, commercial and industrial applications. EPE foaming machine is capable of producing insulation sheets and boards to meet the growing needs of the construction industry.

5. Progress in mechanical technology:

Advances in EPE foam machinery technology have significantly improved production efficiency, product quality and customization capabilities. Modern machines combine computer control, automated processes and precise cutting mechanisms to increase productivity and minimize material waste. These advancements make the EPE foaming machine highly efficient and cost-effective, further driving its market potential.

As the global economy continues to develop, EPE foaming machines are expected to play a key role in meeting the needs of various industries seeking lightweight, multi-functional and environmentally friendly packaging and insulation solutions. If you are looking for EPE foaming machine, or other high quality sheet machine, you can contact us immediately.