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Server board

The server board is the core component of the server, responsible for connecting and managing various parts and components of the server. Compared to conventional PCB boards, server boards have stronger processing capabilities and higher reliability to meet the high-performance and continuous operation requirements of servers. The application of PCB in servers mainly includes acceleration boards, motherboards, power backboards, hard disk backboards, network cards, Riser cards, etc. Its characteristics are mainly reflected in the high number of layers, high aspect ratio, high density, and high transmission speed.

Drilling difficulties

With the evolution of server platforms, server PCBs continue to develop towards higher layer boards. From initially using 8-12 layer PCB motherboards on the Purely server platform of PCIe 3.0, it has evolved to 20-24 layers or even more.
The main difficulty for drilling lies in the high number of layers and high copper content

The root of the drill needle is more fragile and prone to breakage compared to its height, length, and diameter
High copper content, high cutting resistance, and easy wire entanglement
High drilling temperature and easy wear of drilling needles can l

Hard coating enhances wear resistance and chip removal performance

For the drilling difficulties of server PCB boards, our company designs drilling needles from the following perspectives

High toughness material, inhibits needle breakage

Wear resistant coating reduces wear and cutting heat

Excellent chip removal ability, reducing the residence time of chips in the hole to avoid excessive temperature

UCN series

Knife shape	Coating	Characteristic
UCN series	PCMR/Lubricating Coating	Good chip removal ability, combined with hard coating, enhances positioning ability, and can balance chip removal, wear resistance, and positioning ability.