1、 Single sided aluminum substrate product introduction:
Single sided aluminum substrate is an aluminum PCB board; The single-sided aluminum substrate is divided into three layers: aluminum, insulation layer, and copper. Aluminum plays a heat dissipation role, insulation layer plays a heat transfer and insulation role, and copper plays a conductive role. A single sided aluminum substrate generally has printed circuits on one side and smooth wireless circuits on the other side. The most common aluminum substrate in the market is single-sided aluminum substrate, mostly including street lamp aluminum substrate, fluorescent lamp aluminum substrate, spotlight aluminum substrate, high-power aluminum substrate, etc. The upper side is the circuit, and the lower side is the connecting shell or thermal adhesive, which has a heat dissipation effect. The single-sided aluminum substrate has replaced the previous FR4 and PCB fiberglass boards, with high strength, good heat dissipation, and is not easily broken, resulting in a good product structure. Jiubao Technology is a manufacturer with a metal core PCB manufacturing process. It has a 7S production workshop with a complete set of high-end precision equipment from feeding to finished product packaging. It employs high-quality elite team management, a highly skilled professional team engaged in circuit board production, and multiple excellent engineers and professional management personnel. We are a large-scale, well-equipped, strictly managed, and high-quality professional aluminum substrate manufacturer.
Single sided aluminum substrate is aluminum based copper clad plate (copper clad plate is a type of substrate for PCB). The aluminum PCB is actually very similar to the FR4 PCB.
2、 The product structure of a single sided aluminum substrate is shown in the figure:
3、 Performance of single sided aluminum substrate:
Heat dissipation: The performance of a single sided aluminum substrate in heat dissipation is quite good compared to a regular FR4 PCB. For example, the thermal resistance of a 1.5mm thick FR4 PCB is 2.1-2.5 ℃. in2/W, while 1 The thermal resistance of a single-sided aluminum substrate with a thickness of 5 mm is 0.145 ℃. in2/W.
Thermal expansion: Each substance has its own coefficient of thermal expansion. The CTE of aluminum (22ppm/C) and copper (18ppm/C) are very close. Due to the excellent heat dissipation performance of the aluminum substrate, there will be no serious expansion or contraction issues. The aluminum substrate works well, is durable and reliable.
Dimensional stability: The aluminum substrate exhibits dimensional stability and stable size. For example, when they are heated from 30 to 140 degrees, their size only changes by 2.5% -3.0%.
Other: Aluminum substrates can be used for surface mount technology of power devices. Due to the thermal expansion performance of aluminum substrates in circuit design, aluminum substrates can be effectively used in circuit design. Aluminum substrate helps to extend product shelf life and power density. The aluminum substrate is also very reliable. Aluminum substrate can help reduce the overall volume of the product and is also a cheaper option. The aluminum substrate exhibits electromagnetic shielding and high dielectric strength.
LED aluminum substrate is also a type of PCB, which means printed circuit board. However, the material of the circuit board is aluminum alloy. Previously, our typical circuit board material was fiberglass (FR4). However, due to the high heat generated by LEDs, the circuit board used for LED lighting fixtures is usually aluminum substrate, which can conduct heat quickly. LED lighting products also use aluminum substrate, which has both front and back sides. The white side is welded with LED pins, and the other side presents the natural color of aluminum
4、 Manufacturing instructions for the production and production process of single-sided aluminum substrate products:
Base material: aluminum
Plate thickness: 0.8/1.0/1.2/1.5/1.6/2.0/2.5/3.0MM
Maximum size: 900X1500MM
Thermal conductivity (dielectric layer) 0.8/1.5/2/3/5/8/12W/m.K
Copper thickness: 1 OZ, 2 OZ, 3 OZ, 4 OZ-10 OZ
Solder resistance color: white/black/matte black/red/green/blue/matte green
Character color: white/black/orange/red/blue
Forming method: CNC gongs, CNC V-cutting, mold forming, laser cutting and milling
Inspection and testing: AOI, high-speed flying needle, electronic testing, voltage withstand test
Surface treatment: Lead sprayed tin, lead-free sprayed tin, chemical precipitation gold (gold thickness 0.5U "~3.0U"), chemical nickel palladium gold OSP
Delivery time: 2-3 days.
5、 Single sided aluminum substrate product application field
Aluminum substrates have excellent flame retardancy, high mechanical strength, dimensional stability, and particularly good heat dissipation, electromagnetic shielding, and floating tin properties. Widely used in motorcycles; Igniter for mobile phones; High power LED; loudspeaker box; Power module; Acoustic shielding system, etc.
Projection lamp; LED street lights; Plant growth lamp; Projection equipment; Heat sink; Solar cell substrate; 90% of underwater lamps use single sided aluminum substrates, and 90% of lamps are suitable
Aluminum substrate is an ideal solution for high-density and high-power products such as LED applications, power equipment, and computers.
If you encounter heat dissipation issues in PCB design, then aluminum substrate should be your primary consideration. Jiubao Technology provides various types of aluminum substrates, including single-sided aluminum substrates, multi-layer aluminum substrates, hybrid aluminum substrates, flexible aluminum substrates, through-hole aluminum substrates, etc. Other categories, such as general-purpose aluminum substrates, high thermal conductivity aluminum substrates, and high-frequency aluminum substrates are also provided. If you need more detailed information about our aluminum substrate, please feel free to contact us at any time.
ChatNow