Backup boards, aluminum entry sheets, coated lubricant aluminum and back-drill sheets — from one source operating a certified ISO 9001 quality management system. Consistent quality, simplified logistics, real production data from 30+ countries.
YUESHAN PCB has manufactured PCB drilling consumables since 2011 under a certified ISO 9001 quality management system, supplying backup boards, aluminum entry sheets, coated lubricant aluminum and back-drill sheets to fabricators in 30+ countries. Our one-supplier model cuts drill breakage up to 65% on HDI lines, reduces warp scrap about 80%, and lifts throughput up to 50% via 4-panel stacking.
Each product line is engineered to solve a specific drilling problem — not just deliver material. Choose by your board type, hole size and yield target.
Eliminate exit burrs and drill breakage. Flatness ≤0.10mm guaranteed. Stack up to 4 panels per hit for +50% throughput.
Explore →Burr-free drilling for standard vias. 0.18 ±0.015 mm plain entry sheets, oil-free surface — no panel contamination, no extra cleaning.
PCB Aluminum Entry Board & Lubricant Entry Sheet →Cool the bit by 30%. Reduce breakage on micro-vias below Ø0.15mm. Thermally stable Coated alternative at competitive cost.
Lubricant-Coated Aluminum Entry Board →Eliminate stub length variation on 5G & server backplanes. One-piece seamless design with retained edge — no repositioning between passes.
Back-Drill Aluminum HW600/HW900 →These aren't lab numbers — they're field results from PCB manufacturers running YUESHAN materials on their HDI, multilayer and back-drill lines.

An Indian HDI manufacturer switched to YUESHAN HDF 880 + UV Melamine. Drill breakage dropped from 2.3% to 0.8%. Scrap from warpage fell 80%. Stack height went from 2 to 3 panels.
Read full case study →
UV Melamine 950 delivers equivalent hardness (83±3 HD) and density (980 kg/m³) to traditional melamine laminate — at approximately 22% lower cost. Proven on HDI and IC substrate micro-vias.
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A Bangladesh electronics maker has relied on YUESHAN for HDF and UV Melamine backup boards since 2018 — through procurement pauses, market shifts and a successful win-back recovery.
Read the story →Two flagship lines that solve the failures most lines fight: exit burrs, drill wear and stub scatter.

The support layer beneath your panel decides whether holes come out clean or burred. Our graded backup boards hold exit burr to ≤0.05 mm and keep flatness within ≤0.10 mm.

A resin-lubricant film on the drill-entry face cools and lubricates the bit, cuts wear and tightens hole-position accuracy — especially for HDI, BGA and IC-substrate microvias.
The grades PCB manufacturers re-order month after month — proven in production across three continents.

HDF, Melamine & Phenolic grades engineered for clean holes
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840 / 880 / 950 grades — high-density fiber for clean holes
HDF PCB Backup Board →
Laminate grades for stable, low-dust drilling
Melamine PCB Backup Board →
840 / 880 / 950 — UV-resistant surface, anti-stick
UV Melamine PCB Backup Board →
PHE grade — heat-resistant backup for dense boards
Phenolic PCB Backup Board →
1100 H18 full-hard aluminum (0.15–0.20 mm)
Aluminum Entry Boards
Thermoset 220°C & water-soluble for HDI/BGA/IC
Lubricant & Coated Aluminum
One-piece coated (0.16–0.19 mm) for 5G & servers
Back-drill Aluminum
Hardness & Density
Lab Testing
Packaging CheckOur products are manufactured in compliance with industrial quality standards using highly qualitative raw materials. Every batch undergoes stringent checks for hardness, density, thickness, flatness, moisture, visual defects and packaging integrity before dispatch.
Every product ships with TDS & MSDS. Density tolerance ±30 kg/m³, flatness ≤0.10 mm.
Serving PCB makers in India, Japan, Korea, Europe, Middle East & Russia since 2011.
Certified ISO 9001 quality management system, material declarations on request, 12-month warranty.
Backup, entry & coated aluminum from one source — consistent quality, simpler logistics.
From HDI houses in India to substrate makers across Europe — our materials run on real production lines, every day.
We'll send you a free sample kit of the right material stack for your boards — plus TDS/MSDS and a side-by-side benchmark against your current supplier. No cost, no obligation.
For the numbers behind those choices, the PCB calculator suite covers 33 tools for stackup, drilling cost, entry thickness and backup board selection — all runnable in the browser.