FR-4 LED PCB and LED aluminum substrate PCB are two different types of PCB (Printed Circuit Board), and they have certain differences in manufacturing processes and characteristics.
This article will briefly introduce the manufacturing process and characteristics of FR-4 LED PCB and LED aluminum substrate PCB respectively.
FR-4 LED PCB manufacturing
FR-4 LED PCB is an LEDPCB based on FR-4 (glass fiber reinforced epoxy resin). It has excellent electrical insulation properties, mechanical properties and processing properties, and is widely used in various electronic equipment. The manufacturing process is roughly as follows:
- Prepare materials: including FR-4 sheets, LED lamp beads, conductive circuits and other raw materials.
- Make the circuit layer: Cover the FR-4 board with a conductive circuit layer to connect the LED lamp beads.
- Make an insulation layer: Cover the insulation layer between the FR-4 board and the conductive line layer to prevent short circuits and electrical failures.
- Weld the LED lamp beads: Weld the LED lamp beads to the conductive circuit layer.
- Inspection and testing: Inspect and test the FR-4 LED PCB to ensure that its quality and performance meet the requirements.
The features of FR-4 LED PCB are as follows:
- Excellent electrical insulation performance: FR-4 sheet has high insulation resistance and low dielectric loss, which can ensure the safety and stability of LED circuits.
- Excellent mechanical properties: FR-4 sheet has high tensile strength, bending strength and impact toughness, and can withstand certain mechanical shock and vibration.
- Good processing performance: FR-4 sheets can be drilled, cut, bent and other processing operations to facilitate the production of circuit boards of various shapes and sizes.
- Relatively low price: The price of FR-4 sheet is relatively low and suitable for mass production and use.
LED aluminum substrate PCB manufacturing
LED aluminum substrate PCB is a kind of LED PCB with aluminum alloy plate as the base material. It combines the high thermal conductivity of aluminum alloy and the excellent electrical performance of PCB, and is suitable for high-power, high-density, and high-frequency circuit design. The manufacturing process is roughly as follows:
- Prepare materials: including aluminum alloy plates, conductive lines and other raw materials.
- Make the circuit layer: Cover the aluminum alloy plate with a conductive circuit layer to connect the LED lamp beads.
- Make an insulating layer: Cover the insulating layer between the aluminum alloy plate and the conductive line layer to prevent short circuits and electrical failures.
- Weld the LED lamp beads: Weld the LED lamp beads to the conductive circuit layer.
- Inspection and testing: Inspection and testing of the LED aluminum substrate PCB to ensure that its quality and performance meet the requirements.
The characteristics of LED aluminum substrate PCB are as follows:
- High thermal conductivity: Aluminum alloy plates have high thermal conductivity and can conduct heat quickly, effectively reducing the temperature of LED lamp beads and improving their light efficiency and lifespan.
- High electrical performance: LED aluminum substrate PCB has low resistivity and high insulation resistance, which can ensure the safety and stability of the circuit.
- Miniaturized design: The use of high-density design can reduce the size and weight of LED lighting products and facilitate installation and use.
- Strong weather resistance: Aluminum alloy plates have good weather resistance and stability and can work in harsh environmental conditions.
- Environmentally friendly materials: Made of environmentally friendly materials, harmless to the environment.
- High cost: The manufacturing cost of LED aluminum substrate PCB is relatively high and is not suitable for mass production and use.
To sum up, there are certain differences in the manufacturing process and characteristics of FR-4 LED PCB and LED aluminum substrate PCB. FR-4 LED PCB has better processing performance and lower cost, and is suitable for various types of electronic equipment; while LED aluminum substrate PCB has the characteristics of high thermal conductivity, high electrical performance and miniaturization design, and is suitable for high-power, High-density, high-frequency circuit design. When selecting a PCB, you need to determine which type of PCB to use based on specific application requirements.
How is the insulation performance of FR-4 sheets ensured?
The insulation performance of FR-4 sheets is ensured in the following ways:
- Selection of resin material: FR-4 board uses epoxy resin as the main material, which has high insulation properties. During the manufacturing process, FR-4 boards will also be added with some fillers and glass fiber and other materials, which can also improve the insulation properties of FR-4 boards.
- Manufacturing process control: FR-4 plates require a series of processing during the manufacturing process, such as hot pressing, cooling, cutting, etc. These processing processes can effectively control the insulation properties of FR-4 sheets to ensure that they meet the requirements.
- Surface treatment: The surface of FR-4 sheets needs to be treated to avoid the impact of surface defects on the insulation performance. For example, the surface of FR-4 sheets can be treated with antistatic treatment, coating, etc. to improve its insulation properties.
- Control of environmental conditions: FR-4 sheets will be affected by environmental conditions during use, such as temperature, humidity, etc. In order to ensure the insulation performance of FR-4 boards, measures need to be taken to control environmental conditions, such as temperature control, humidity control, etc.
In short, the insulation performance of FR-4 sheets is ensured through a variety of methods, including the selection of resin materials, control of manufacturing processes, surface treatment, and control of environmental conditions. These measures can effectively improve the insulation performance of FR-4 sheets, making them play a good role in electronic equipment.
FR-4 led PCB and aluminum substrate PCB manufacturing and assembly manufacturer
Shenzhen Fumax Technology Co., Ltd.
Shenzhen Fumax Technology Co., Ltd. is a manufacturer specializing in PCB manufacturing and has many years of experience in PCB manufacturing. The company can provide customers with board copying, board modification, manufacturing and other services, and produces high-precision single, double-sided and multi-layer (1-12) circuit boards. Its product types include high-power LED street lights, spotlights, fluorescent lamps, LED security monitors, etc., and its application fields include communication equipment, computers, industrial control, household appliance technology, etc.
Fumax’s PCB board manufacturing features include high thermal conductivity LED aluminum-based circuit boards, FR-4 glass fiber circuit boards, PCB circuit boards, etc., with a complete range of materials, such as 94HB, 94V0, 22F, CEM-1, FR-4, CEM-3, Aluminum substrate, copper substrate, etc. In terms of production technology, the company has the advantages of full exposure technology, full computer numerical control with high precision, and full testing for shipment.
Guangzhou Ming En Electronics Co., Ltd.
Guangzhou Mingen Electronics Co., Ltd. is a company that has been producing printed circuit boards (PCBs) for many years. It can produce single-sided, double-sided, multi-layer, aluminum substrate, and copper substrate integrated PCB circuit boards. The PCB boards it produces have excellent quality and efficiency and are widely used in stage lighting, mixers, consoles, moving head light motherboards and other places.
The PCB board manufacturing features of Guangzhou Ming En Electronics Co., Ltd. include full computer numerical control with high precision, full testing and shipment, etc. It also provides different services such as board copying, design, circuit drawing, and patch placement.