source:Other information release time:2023-08-25 Hits: Popular:PCB Assembly company
Aluminum substrate is a metal based copper clad plate with good heat dissipation function, commonly used in the LED industry. Single sided aluminum substrate can only have one side attached with LED, and single layer wiring; The double-sided aluminum substrate can be LED coated on both sides, with two layers of wiring. Let the engineer reveal the secret for you: What are the differences in processing technology between single-sided and double-sided aluminum substrates?
1. Compared to single-sided aluminum substrate, double-sided aluminum substrate has an additional pressing process! But the price is expensive and the process is very difficult!
2. Double sided aluminum substrate requires drilling two holes. Due to the difficulty of directly plating copper on the aluminum surface, it is necessary to drill through the aluminum plate and cover it with a layer of resin.
Specific process: Aluminum based first hole turning ->Pressing (filling the hole with resin) ->Second hole turning (concentric circle) ->Electroplating
3. Differences in production process
Single sided aluminum substrate: The aluminum plate is pre treated with a high thermal insulation layer and copper foil, which is then formed by high temperature and strong pressure to form the aluminum substrate.
Double sided aluminum substrate: After machining, the aluminum plate undergoes pre-treatment and hole insulation, plus a double-sided high thermal conductivity insulation layer and double-sided copper foil. After being formed by high temperature and strong pressure, the machining pattern is transferred and then machined into a double-sided aluminum substrate.
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