What is F4BM300 PCB and its applications?

Introduction

Wangling is proud to introduce the F4BM300 PCB, a cutting-edge laminated board that combines fiberglass cloth, polytetrafluoroethylene (PTFE) resin, and PTFE film. Building upon the success of the F4B300, the F4BM300 offers improved electrical performance, lower dielectric loss, increased insulation resistance, and enhanced stability. With its exceptional characteristics, this F4B High Frequency PCB is a reliable and efficient alternative to similar foreign products in the market.

Dielectric Layer and Copper Foil Combinations

The F4BM300 and the F4BME300 share the same dielectric layer, which allows for precise control of the dielectric constant, resulting in reduced loss and enhanced dimensional stability. However, these two laminates differ in their copper foil combinations. The F4BM300 is paired with ED copper foil, making it suitable for applications without the need for PIM (Passive Intermodulation) requirements. On the other hand, the F4BME300 utilizes reverse-treated foil (RTF) copper foil, providing excellent PIM performance, more precise line control, and lower conductor loss.

Features of F4BM300

The F4BM300 F4B PCB Material boasts remarkable features that make it an exceptional choice for high-frequency applications:

2.1 Dielectric constant (Dk) of 3.0 at 10GHz:

This attribute ensures stable signal transmission and reduced signal loss, enabling optimal performance in demanding RF environments.

2.2 Dissipation factor of .0017 at 10GHz:

The low dissipation factor indicates minimal energy loss and improved signal integrity, allowing for accurate and reliable data transmission.

2.3 Coefficient of Thermal Expansion (CTE): 

The F4BM300 exhibits a CTE x-axis of 12 ppm/°C, CTE y-axis of 15 ppm/°C, and CTE z-axis of 95 ppm/°C in the temperature range of -55°C to 288°C. This exceptional thermal stability ensures the board's reliability and performance across various operating conditions.

2.4 Low thermal coefficient of Dk:

With a thermal coefficient of Dk at -80 ppm/°C in the temperature range of -55°C to 150°C, the F4BM300 guarantees consistent electrical performance, even under challenging thermal conditions.

2.5 Moisture absorption of≤0.08%:

This low moisture absorption rate ensures the stability and reliability of the PCB, even in humid environments.

2.6 Flammability rating of UL-94 V0:

The F4BM300 complies with the UL-94 V0 standard for flammability, offering peace of mind and safety in applications where fire resistance is a crucial requirement.

PCB Stackup and Construction Details

The F4BM300 60mil F4B Substrate PCB follows a 2-layer rigid construction, with copper layers on both sides of the core material:

Copper_layer_1: 35μm

F4BM300 Core: 1.524 mm

Copper_layer_2: 35μm

To ensure precision and adherence to quality standards, the F4BM300 PTFE F4B PCB incorporates specific construction details:

-Board dimensions:

The board measures 700mm x 40mm, with a tolerance of +/- 0.15mm, ensuring consistency and uniformity.

-Minimum Trace/Space:

The PCB allows for a minimum trace/space of 5/5 mils, facilitating intricate circuit designs and enabling high-density component placement.

-Minimum Hole Size:

The F4BM300 PCB supports a minimum hole size of 0.4mm, accommodating various types ofcomponents and allowing for reliable interconnectivity.

-No Blind vias:

The absence of blind vias simplifies the construction process and ensures optimal signal transmission throughout the board.

-Finished board thickness:

The finished board thickness is 1.6mm, striking a balance between rigidity and flexibility for optimal performance.

-Finished Cu weight:

The outer layers of the F4BM300 PCB have a finished Cu weight of 1oz (1.4 mils), providing excellent conductivity and signal integrity.

-Via plating thickness:

The vias are plated with a thickness of 20μm, ensuring reliable electrical connections and optimal signal transmission.

-Surface finish:

The F4BM300 PCB utilizes immersion tin as the surface finish, offering excellent solderability and a level surface for component placement.

-Silkscreen and Solder Mask:

The top silkscreen is white, allowing for clear component identification and alignment. The green solder mask on both the top and bottom layers provides protection and insulation.

-Electrical Testing:

Each F4BM300 PCB undergoes a 100% electrical test before shipment, ensuring the integrity of the product and adherence to quality standards.

PCB Statistics

The F4BM300 1.524mm high frequency material PCB is designed to accommodate a diverse range of components and applications. Here are some relevant statistics:

Components: The F4BM300 supports the integration of up to 51 components, enabling complex circuitry designs and versatile applications.

Total Pads: With a total of 76 pads, the PCB offers ample connectivity options for reliable circuit interconnections.

Thru Hole Pads: The F4BM300 incorporates 37 thru-hole pads, accommodating components that require a through-hole mounting method.

Top SMT Pads: The top layer of the PCB features 49 surface mount technology (SMT) pads, ensuring efficient and space-saving component placement.

Bottom SMT Pads: The F4BM300 does not have any bottom SMT pads, providing additional flexibility in component placement and routing.

Vias: The PCB includes 32 vias, enabling multi-layer interconnectivity and ensuring efficient signal flow.

Nets: With 2 nets, the F4BM300 lays the foundation for diverse circuit designs and optimized signal routing.

Artwork and Quality Standards

The F4BM300 60mil PCB accepts Gerber RS-274-X artwork files, simplifying the manufacturing process and ensuring compatibility with industry-standard software tools. Moreover, the PCB adheres to the IPC-Class-2 quality standard, guaranteeing excellent quality control and reliable performance.

Availability and Typical Applications

The F4BM300 substrate PCB is available worldwide, allowing engineers and manufacturers to access its exceptional features and benefits. This versatile laminate finds applications in various fields, including:

1)Microwave, RF, and radar systems:

The F4BM300 ensures superior signal integrity and reliable performance in high-frequency systems, enabling seamless communication and accurate data transfer.

2)Phase shifters:

With precise control of the dielectric constant, the F4BM300 facilitates precise phase shifting, essential in applications such as beamforming and phased array systems.

3)Power dividers, couplers, and combiners:

The F4BM300's low dielectric loss and enhanced dimensional stability make it an ideal choice for efficient power distribution and signal combination.

4)Feed networks: 

The F4BM300 provides reliable interconnectivity in feed networks, enabling efficient and stable signal transmission in complex antenna systems.

5)Phase-sensitive antennas and phased array antennas:

With its superior electrical performance, the F4BM300 empowers the creation of phase-sensitive antennas and phased array antennas, crucial for beamforming and beam steering applications.

6)Satellite communications:

The F4BM300 supports stable signal transmission in satellite communication systems, guaranteeing reliable data transfer and enhanced connectivity.

7)Base station antennas:

The F4BM300 ensures optimal signal quality and improved performance in base station antennas, enabling efficient wireless communication.

Conclusion

The F4BM300 60mil PCB from Wangling offers exceptional electrical performance, enhanced stability, and improved dielectric characteristics. With its precise control of the dielectric constant, low dielectric loss, and excellent dimensional stability, it serves as a reliable and efficient alternative to foreign products. From microwave and RF systems to satellite communications, this laminated board delivers outstanding results in various high-frequency applications. It is time for engineers and manufacturers around the globe to harness the power of the F4BM300 high frequency PCB and unlock the full potential of their.

In today's fast-paced world, tracking health and fitness is key. Enter the Z3 smart watch, crafted by our team as a smart watch oem manufacturer.

The Z3's advanced heart rate monitoring system, with precision sensors, tracks your rate in real-time—during workouts, daily life, or sleep. Data shows on the watch and syncs with your app for analysis.

We perfected sleep analysis too. Using motion sensors and algorithms, it pinpoints sleep stages, helping you understand sleep quality, spot issues, and get personalized tips. It's like a wrist sleep coach!

We know women have unique health needs. The Z3 addresses them with functions to track menstrual cycles accurately, predicting start and end dates so you're always ready. This sets our health smart sport watch apart.

For fitness lovers, the Z3 is a game-changer. It offers multiple sport modes like running, cycling, and swimming. During exercise, it records key metrics and gives real-time coaching to keep you motivated and help reach goals.

In conclusion, the Z3 smart watch enhances your lifestyle. Whether it's health, fitness, or body awareness you seek, it's got you covered.

Stay tuned for more on making the most of this device.

Ready to embrace the Z3? 

Recently, the CIQTEK-developed Cryogenic Scanning Nitrogen-vacancy Microscope (SNVM) was successfully delivered to Professor Wong Chun-ling's research group at the City University of Hong Kong. This marks the broader recognition of CIQTEK's technical strength and service capability in the field of precision measurement.

Magnetism is one of the fundamental properties of materials, and the microscopic imaging of magnetism is an important direction in experimental physics research. By studying the microscopic magnetic properties of materials in depth, scientists can gain insights into the structure, electronic properties, and interactions of materials, which is of great significance for guiding the development of new magnetic storage materials and superconducting materials.

The Cryogenic Scanning Nitrogen-vacancy Microscope is a precision measurement instrument that combines diamond NV center optical detection of magnetic resonance technology with atomic force microscopy scanning imaging technology. It can be used for high-resolution, high-sensitivity, quantitative, and non-destructive magnetic measurements in a wide temperature range of 2K to 300K. It has nanoscale spatial resolution and ultra-high detection sensitivity of single spins. It will provide a new approach for research in life sciences, materials science, condensed matter physics, and other fields.

City University of Hong Kong is a public research university located in Hong Kong, renowned for its outstanding research and education in disciplines such as science, engineering, business, and law. Professor Wong Chun-ling's research group focuses on the study of two-dimensional and three-dimensional ferromagnetic and multiferroic materials and devices. By manipulating materials, and characterizing their structures and electrical/magnetic properties, the group aims to gain a deep understanding of the fundamental physics and unique properties of low-dimensional multiferroic materials and develop new materials/devices for the next generation of electronics and spintronics. The Cryogenic Scanning Nitrogen-vacancy Microscope will be an important scientific research tool in the field.

Maintaining a fusion splicer is crucial to ensure its optimal performance and extend its lifespan. Here are some general maintenance guidelines for a fusion splicer:

1. Regular Cleaning: Clean the fusion splicer after each use to remove dust, debris, and fiber residue. Use a soft, lint-free cloth and a mild cleaner specifically designed for fusion splicers. Avoid using solvents or abrasive materials that could damage the splicer's delicate components.

2. Electrode Inspection and Replacement: Check the electrodes regularly, as they degrade over time and can impact splicing quality. Follow the manufacturer's guidelines for electrode inspection and replacement intervals. If the electrodes are worn out or damaged, replace them with genuine electrodes recommended by the manufacturer.

3. Fiber Cleaver Maintenance: Clean the fiber cleaver regularly and make sure it is properly adjusted to obtain clean and precise cleaves. Check the blade condition and replace it if it becomes dull or chipped. Follow the manufacturer's instructions for cleaver maintenance.

4. Calibration and Alignment: Periodically calibrate and align the fusion splicer to ensure accurate splicing. Some splicers have an automated calibration feature, while others require manual adjustment. Follow the manufacturer's guidelines for calibration procedures.

5. Battery Maintenance: If your fusion splicer has a removable battery, properly charge and discharge it according to the manufacturer's instructions. Avoid overcharging or completely draining the battery, as it can reduce its lifespan. If the battery is built-in, follow the manufacturer's guidelines for maintenance.

6. Firmware Updates: Stay updated with the latest firmware releases for your fusion splicer. Manufacturers often provide firmware updates to improve performance, add features, or address known issues. Check the manufacturer's website periodically and follow the instructions for firmware updates.

7. Transport and Storage: When transporting the fusion splicer, use a protective case to prevent physical damage. Store the splicer in a clean and dry environment, away from excessive dust, moisture, and temperature extremes.

Professional Service: If you encounter any technical issues or experience a drop in splicing quality, consult the manufacturer's support documentation or contact their customer service for assistance. Some manufacturers provide authorized service centers for repairs and maintenance.

Polarization-Maintaining Fiber (PM Fiber) plays a vital role in various applications that require optimal signal integrity and polarization stability, such as telecommunications, fiber optic sensing, and laser systems. The use of a specialized Fusion Splicer for PM Fiber is essential to achieve accurate and reliable splicing, ensuring the preservation of the fiber’s polarization properties. This article explores the significance of a Polarization-Maintaining Fiber Fusion Splicer, its features, and its role in maintaining precise alignment for optical stability.

Understanding PM Fiber and its Challenges:

Polarization-Maintaining Fiber is designed to maintain the polarization state of light as it propagates through the fiber. Unlike conventional single-mode fiber, PM Fiber incorporates specific design elements that minimize polarization mode dispersion (PMD) and maximize polarization extinction ratio (PER). However, handling and splicing PM Fiber present unique challenges due to its polarization-sensitive nature.

Polarization-Maintaining Fiber Holders: These specialized holders are designed to securely hold the PM Fiber during the fusion splicing process. They ensure precise alignment of the polarization-maintaining fiber cores to maintain the desired polarization properties.

Real-Time Monitoring: The fusion splicer incorporates real-time monitoring capabilities, allowing technicians to monitor and adjust the alignment parameters during the splicing process. This ensures precise alignment and enables immediate feedback on splicing quality.

There could be several possible reasons for this issue. Here are some common causes of fusion splicing failures and some troubleshooting steps you can try:

1.Fiber Preparation: Ensure that the fiber ends are properly prepared, stripped, and cleaned before fusion splicing. Any dirt, residue, or inadequate fiber preparation can affect the quality of the splice. Use lint-free wipes and isopropyl alcohol to clean the fiber ends.

2.Fiber Alignment: Check the alignment of the fibers. Improper alignment can lead to weak or failed fusion splices. Make sure the fibers are properly aligned in the fusion splicer's v-grooves or alignment mechanism.

3.Electrode Condition: Inspect the condition of the electrodes. Worn or dirty electrodes can cause poor fusion and inconsistent results. Clean or replace the electrodes if necessary.

4.Fusion Parameters: Review the fusion splicer's fusion parameters, such as arc power, arc duration, and fusion time. Ensure that the parameters are correctly set according to the fiber type and diameter being spliced. Consult the fusion splicer manual for recommended settings.

5.Fiber Type and Compatibility: Verify that the fusion splicer supports the fiber types you are working with. Different fusion splicers may have limitations on the types of fibers they can splice. Ensure that your splicer is compatible with the specific fibers you are using.

6.Arc Calibration: Perform an arc calibration or electrode realignment on the fusion splicer. This process ensures the optimal performance of the splicer by adjusting the electrode positions. Follow the manufacturer's instructions for the calibration procedure.

7.Environmental Factors: Consider the environmental conditions during fusion splicing. Environmental factors such as humidity, temperature, and dust particles can affect the fusion process. Maintain a clean and controlled environment for splicing.

If you have tried the above troubleshooting steps and are still experiencing fusion splicing failures, it may be necessary to consult the manufacturer's customer support or a professional technician for further assistance. They should be able to provide more specific guidance based on your fusion splicer model and the nature the problem.

SEIKOFIRE is a factory with over a decade of experience in the fiber communication industry, specialized on fusion splicers. We have a professional after-sales team to solve your welding problems. Quality assurance, welcome to consult to negotiate.

Poultry house gradual lighting is a gradually changing lighting pattern that simulates the light changes of sunrise and sunset, allowing birds to gradually adapt to different light environments. This technology can be achieved by gradually changing the intensity and color temperature of the light, so that the bird can better adapt to environmental changes during the growth process, thereby improving its production performance and health.

The principle of gradual lighting in poultry houses is based on the physiological and psychological adaptability of birds to changes in light. The physiological and psychological state of birds will be affected by the sunshine time and light intensity, so in the process of sunrise and sunset, birds will gradually adapt to the changes in light, so as to maintain a relatively stable state. The gradual lighting of poultry houses takes advantage of this physiological adaptation.

The advantages of gradual lighting in poultry houses are as follows.

1. Birds gradually adapt to light, reducing stress and fatigue.

2. Improve the immunity of birds, increase the appetite and digestive ability of birds.

3. Improve production efficiency and reduce feeding costs.

4. Improve the growth rate and meat quality of poultry.

5. Environmental protection and energy saving, reduce energy consumption.

6. Reduce behavior abnormalities and aggression.

7. Improve the birds' routine.

8. Improve the quality of life for birds.

In summary, the gradual lighting of poultry houses has many advantages over the traditional fixed lighting mode. For both commercial poultry farming and small-scale free-range and domestic poultry farming, gradual lighting in poultry house is an effective light management method. There is no doubt that gradual lighting in poultry houses is changing the future of poultry house lighting. Using our Hot-Selling 6.5W LED Poultry Light Bulb connected to Smart Poultry Lighting Control System can achieve the gradual lighting of poultry house. You can change the light intensity and color temperature according to actual needs, improve the quality of life of birds, so as to improve the production efficiency and meat quality of birds, and further increase the economic benefits of poultry farms.

Note: Source of text information in this article: QINKEYUAN

It is widely believed that 24-hour light maximizes the performance and health of chicks. But is 24-hour light really good for raising chicks?

Numerous studies have shown that chicks, like all living things, are born with a 24-hour body clock. This clock can be seen at work by observing the eating and drinking activity of chicks during the first few days of their lives. Even if 24-hour light is provided, the chicks will still drink and eat more during the day ‌ than at night.

What are the specific effects of 24-hour light on chicks?

1. Circadian Rhythm: Chicks show nearly identical circadian rhythms during the first few days of life, with significantly higher water and food intake during the day than at night. This pattern persists even with 24 hours of light.

2. The Need for Dark Periods: Studies have shown that poultry need to have at least four hours of continuous darkness to really benefit from the dark period. Without dark periods, chicks' circadian rhythms may become out of sync.

Alternative Solution

In order to promote feeding and growth of chicks, strategies can be used to gradually reduce the time of light:

Week 1: 24 hours light.

‌Week 2: 20 hours of light.

‌Week 3: 18 hours of light.

‌Week 4: 16 hours of light.

‌From week 5: Taper down to 8 hours of light per day ‌

In addition, the light can be stopped from time to time for 1 hour at night to exercise the adaptability of the chicks to the dark and avoid the upset of the chickens due to power failure.

Using our Hot-selling LED Poultry Light Bulb and Smart Poultry Lighting Control System, you can easily control and adjust the lighting time, achieve intelligent management of lights, and better care for the growth of chicks.

Special Notice: The information and picture above are from the Internet, not original.

We will uphold the enterprise spirit of "customer first, pursuit of excellence", adhere to quality first and management and technological innovation, and shoulder the historical responsibility of "new ideas, new opportunities, new challenges" given to us by the times. We have accumulated a lot of resources and worked hard to meet new challenges and develop Xintiandi into a star enterprise with sustainable development and excellent competitiveness.