• Counterbore hole pcb factory
  • Counterbore hole pcb factory

Counterbore hole pcb factory

Product Model: LED Counterbore Hole PCB
Base Material: Aluminum Substrate
PCB Layers: 1 Layer
Solder Mask Color: White / Black
Finished Thickness: 1.2mm
Copper Thickness: 1OZ
Surface Treatment: Lead-free HASL
Thermal Conductivity: 1.0 W/m·k
Special Process: Counterbore hole customization
Application: LED related circuit boards

  • Counterbore hole pcb factory
  • Description

  • Data Sheet

A PCB countersunk hole refers to a special blind hole processed inward from the board surface, which is mainly reserved for embedded assembly of bolts and other fastener parts.


PCB countersunk hole marking


Design Background of PCB Countersunk Hole

As electronic products continuously evolve toward lighter, thinner, shorter and smaller configurations, terminal manufacturers have raised strict standards for overall equipment volume, appearance flatness and assembly compactness in component mounting and structural design. This trend drives printed circuit boards to develop in the direction of high-precision fine circuit routing, optimized lamination schemes and customized special craftsmanship.
In conventional PCB design and production, the common solution to adapt to compact assembly demands is to optimize internal stacking structure and improve wiring density, so as to minimize the overall board thickness. However, the reduction of board thickness is subject to inherent limitations of process indicators including line width, line spacing and finished layer count, making it difficult to achieve further lightweight breakthroughs.
In standard application scenarios, electronic components are mostly mounted on the outer surface of bare PCBs after delivery. The protruding height of surface devices will form uneven bulges, directly increasing the overall assembly size of finished equipment. For this reason, optimizing PCB structural design to realize high-flatness assembly has become a core technical problem that needs to be solved in the precision PCB processing industry.

Model : LED counterbore hole pcb

Material : aluminum base

Layer : 1Layers

Color : White/Black

Finished Thickness : 1.2mm

Copper Thickness : 1OZ

Surface Treatment : Lead-free HASL

Thermal Conductivity : 1.0w/m.k

Special process : counterbore hole pcb

Application : LED pcb