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What a 1 Layer SinkPAD Board Is

The 1 Layer SinkPAD board consists of a copper circuit layer, a dielectric (non-conducting) layer, a metal core/pedestal which normally is copper. Which is the most popular stack up for SinkPAD Board, and of course most cheap, fastest lead time option.

As the trace layer is only on the top side if SinkPAD board, so it’s also belonging to single sided SinkPAD PCB, and also belonging to Direct Thermal Path (DTP) board, so most of them were used in thermoelectric separation application.

The SinkPad board provides excellent heat transfer from the LED to the base metal (copper) plate, while maintaining excellent electrical isolation. The base copper base gives the single-sided substrate mechanical integrity, distributes and transfers the heat to a heat sink, mounting surface or directly to the ambient air.

The 1 Layer copper base SinkPad PCB can be used with surface mount and chip & wire components, and provides much lower thermal resistance than normal MCPCB. As the thermal PAD of LED is touching the convexity of copper core/pedestal directly, so that thermal conductivity can be 400W/m.K.

It is generally used for high power LED, the pad of LED touch the copper base directly, so that the heat generated by LED will be dissipated quickly into the air, or heatsink, which can achieve the best heat dissipation and conduction.

Stack up of 1 Layer SinkPAD Board

1L SinkPAD Board

Advantages of Atilizing SinkPAD Board:

  • The metal core is Copper with high density, strong thermal carrying capacity and higher thermal conductivity. So the volume can be smaller under the same power.
  • It adopts the thermoelectric separation structure, the Lumens depreciation of the LED is minimized, and the life of the lamp is prolonged.
  • Suitable for matching single high-power lamp, such as Cree XPL, XML, XHP; Osram LED, etc., also COB package LED
  • High power semiconductors (transistors, thyristors, diodes) as well as resistors.
  • A variety of Surface Finishing are available according to different demands. (ENIG, OSP, Immersion Tin, ENEPIG, HAL) with excellent reliability of the surface treatment layer.
  • Different structures can be made according to different design needs of LED. (Such as copper bump, copper concave block)

1 Layer SinkaPAD Board Capability
  • Base material: Copper: 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.5mm
  • Thermal Conductivity: 400 W/m.K.
  • Board Thickness: 1.0mm~2.0 mm (0.04"~0.08")
  • Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ (specially 3-10 OZ)
  • Outline: Routing, punching, V-Cut
  • Soldermask: White/Black/Blue/Green/Red Oil
  • Legend/Silkscreen Color: Black/White/Yellow
  • Surface finishing: Immersion Gold, ENEPIG, Immersion Tin, OSP
  • Max Panel size: 600*500mm(23.62"*19.68")
  • Packing: Vacuum/Plastic bag
  • Samples L/T: 1.5~2 weeks
  • MP L/T: 2-3 weeks

Click here to see the manufacturing process of 1 layer SinkPAD Board and other options.

If you want to customize 1 layer of SinkPAD board, please contact Best Technology today send your request for SinkPAD Board.