Aluminum substrate is a metal -based copper plate with a good heat dissipation function. Generally, a single -surface panel consists of a three -layer structure, which are circuit layers (copper foil), insulation layers and metal grassroots.It is also designed for high -end and is designed as double panels, structures, insulation layers, aluminum -based, insulating layers, and circuit layers.A very few applications are multi -layer, which can be composed of ordinary multi -layer boards with insulating layers and aluminum.Aluminum substrates are common in LED lighting products.There are two sides, one white side is welded LED pins, and the other side presents aluminum color. Generally, the thermal coagulation slurry is applied and touched on the thermal part.There are currently ceramic substrates and so on.
Aluminum substrate performance
1. Stability.The size of the aluminum substrate is generally relatively small, which is stable than the printed boards made by many insulating materials.2. Insulation.The aluminum substrate has good thermal insulation and high hardness. It can replace fragile ceramic boards, which can reduce the real area required by the printed board, so that the product is not allowed to install the radiator, etc., which can improve the heat dissipation of the product and improve the productEfficiency, reduce costs.3. Thermal expansion.Because the aluminum substrate can improve the heat dissipation function of the product, it alleviates the thermal expansion and contraction of the vitality on the printed board. Colleagues also improve the reliability of the product and make the product more durable.
Aluminum substrate thermal conductivity coefficient
Aluminum substrate thermal conductivity, as its name implies, is an aluminum substrate heat dissipation performance parameter. It is one of the three major standards for measuring the quality of aluminum substrates (the heat resistance and pressure resistance value are the other two performance).The aluminum substrate thermal conductivity can be tested by the test instrument after the plate is pressed. At present, the high thermal conductivity is generally ceramic, copper, etc., but due to the cost of cost, most of them are aluminum substrates on the market.The aluminum -based plate thermal conductivity is a parameter that everyone cares about. The higher the heating coefficient, the better it is one of the signs of the better performance.Aluminum substrate is a unique metal -based copper -covered aluminum substrate, which has good thermal conductivity, electrical insulation performance and mechanical processing performance.The general coefficient is 1.0, 1.5 and 2.0!
Aluminum substrate price
PCB prototype circuit, drawing, and design aluminum -based board, the market price is 350 yuan/square meter.Hardware Electric proofing lines are produced and processed aluminum substrates, and the market price is 340 yuan/square meter.Electronic circuit aluminum aluminum substrate, two -sided production, 360 yuan/square meter.The LED lamp lamp is rounded and aluminum substrate, a round monochrome of 15W, and the market price is 25 yuan/piece.
Aluminum substrate process
工艺流程:开料→钻孔→干膜光成像→检板→蚀刻→蚀检→绿油→字符→绿检→喷锡→铝基面处理→冲板→终检→包装→出货

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