Double Layers MCPCB General Info
Double layers MCPCB is consisting of two layers of copper conductor, put them on same side of metal core (usually aluminum, copper or iron alloy). The metal base is on the bottom of whole MCPCB, which is different from double sided MCPCB (the two copper layers were put on the each side of metal core respectively), and you can only populate SMD on top side.
Different with Single layer MCPCB, 2 layers MCPCB requires
an additional pressing step to laminate the imaged
thermal conductive laminate and metal core (also
known as metal base) together.
Compared with normal FR4, this sturcture need more technology and experience on laminating of two layers together with metal core.
The processing steps of the MCPCB with the
metal base embedded in the PCB are comparatively
complex as hole plugging is required after primary
drilling on the metal base in order to isolate it from