Aluminum plate, the abbreviation ALPCB, aluminum clad circuit board is short, belonging to the metal base circuit board (also known as: MCPCB) A, compared with common FR4 fiberglass board, with good thermal conductivity and high cost performance, 2007 LED lighting quickly became the preferred source board PCB, integrated lighting in recent years production experience and application information on this throw aluminum plate related topics.

A: Common structural metal substrate metal substrate, such as a schematic diagram a, there is a common structure: a conductive layer (also known as the copper foil layer), and components for line arrangement pad bits; 2: thermal insulation layer (common ceramic PP plastic powder), by definition, play thermal insulation effect 3: metal substrate (common as aluminum, copper), as the carrier of the copper foil and the insulating layer, aluminum with high cost performance and good machining properties of the metal substrate market share ahead.

B: aluminum plate conventional performance LED lighting as the most commonly used PCB, we are interested to know more about the aluminum plate. Aluminum plate with aluminum as the carrier, the thermal, electrical and mechanical performance is particularly important, common parameters such as: specific heat capacity, thermal conductivity, melting point range, the linear expansion coefficient, conductivity, resistivity, hardness, fatigue strength, tensile strength , elastic modulus, elongation, cutting forces. Meet the national standard case, in which the thermal conductivity is particularly important, the concepts and methods of measurement may wish to refer schematic b, more intuitive.

Currently different manufacturers aluminum clad thermal conductivity differences, should the measurement method described above, the domestic market mainstream thermal conductivity of aluminum clad mostly 0.2-1.5W/MK between the cost difference is easy to induce thermal conductivity does not etc., so consider thermal conductivity, might refer aluminum plate price positioning and third party testing.