YUESHAN supplies PCB drilling consumables to Singapore's semiconductor, advanced packaging and high-mix EMS lines: 1100 H18 aluminum entry boards in 0.15–0.28 mm selected by drill diameter, lubricant-coated entry aluminum for sub-Ø0.15 mm microvia, and backup boards from HDF 880 (75±2 HD) to Phenolic PHE (90±5 HD, decomposition above 220 °C). A Singapore-registered trading partner has bought 1100 H18 × 0.18 mm entry aluminum from YUESHAN continuously since 2017 for a Philippine OSAT end user. Sheets 940 × 1245 mm and 520 × 620 mm, MOQ 100–200 sheets, free samples with TDS/MSDS, FOB/CIF.
Singapore is not a volume PCB fabrication base — it is a specification, procurement and advanced-packaging centre. That changes what a drilling consumable has to prove. Buyers here are usually qualifying material on behalf of a regional network: a Singapore trading house serving OSAT plants elsewhere in ASEAN, a semiconductor site running substrate and interposer work, or an EMS line doing high-mix, low-volume builds where one scrapped panel costs more than a pallet of backup board. The questions we get from Singapore are about alloy consistency, documentation and repeatability — not headline price.
Singapore accounts for roughly 10% of global semiconductor output and about 20% of global semiconductor equipment production, according to the Singapore Economic Development Board. The Singapore Semiconductor Industry Association counts more than 30 IC design centres, close to 20 wafer fabs and over 10 assembly and test operations on the island. Advanced packaging is the current growth axis: Micron broke ground in Woodlands on 8 January 2025 for its first HBM advanced packaging facility in Singapore, a US$7 billion commitment with operations due to start in 2026 and capacity expansion from 2027. In December 2024 a VIS–NXP joint-venture 300 mm wafer fab broke ground with a stated US$7.8 billion investment targeting production in 2027.
Sources: Singapore Economic Development Board statements and Singapore Semiconductor Industry Association figures; Micron / EDB / JTC groundbreaking announcements, January 2025; VIS–NXP joint-venture announcement, December 2024. These are industry-context facts. YUESHAN does not claim any of these companies as customers.
The full account, including how the formula pricing was communicated and accepted, is published as the Singapore trading partner case study. Material data sits in the 1100 H18 aluminum entry board spec sheet. For the pricing mechanism itself, see how aluminum formula pricing works.
That record matters more than a specification claim. It shows an eight-year qualified spec, a documented inspection routine, and a transparent pricing formula that survived an aluminum price move — the three things a Singapore procurement team actually audits.
Singapore-registered traders consolidate for OSAT and PCB plants across Malaysia, the Philippines, Vietnam and Thailand. They need a locked spec, batch traceability and a pricing formula they can pass through without renegotiating every month. Our 1100 H18 spec sheet exists precisely so a trader can hand it to an end user unchanged.
Substrate, interposer and package-level drilling demands the hardest, flattest support available: Phenolic PHE at 90±5 HD, 1.50 mm, with a decomposition temperature above 220 °C — paired with lubricant-coated entry aluminum for sub-Ø0.15 mm microvia. See HDI & IC substrate solutions.
Short runs and frequent stack changes punish inconsistent material. UV Melamine 950 at 83±3 HD gives a repeatable exit surface across changeovers without re-tuning parameters every job.
Where a hole defect is a field failure, not a rework ticket. Tight exit burr control plus back-drill aluminum for stub control. See medical & diagnostic and defense & aerospace.
| Build type | Entry material | Recommended backup | Why |
|---|---|---|---|
| IC substrate / interposer | 1100 H18 · 0.15–0.20 mm | Phenolic PHE · 90±5 HD | Highest hardness on the range; decomposition above 220 °C holds under substrate drilling heat |
| HDI 1–2 step, sub-Ø0.15 mm microvia | Lubricant-coated aluminum (LCO) | UV Melamine 950 · 83±3 HD | Coating cools and lubricates the bit; hard sealed face holds microvia location |
| 12–24 L high layer count / back-drill | 1100 H18 · 0.20–0.28 mm | UV Melamine 980 + back-drill aluminum | Anti-deformation at tall stack height; controlled stub depth |
| High-mix EMS, 4–12 L | 1100 H18 · 0.18–0.25 mm | HDF 880 · 75±2 HD | Best published cost-to-performance for mixed-stack production |
| 5G / server, low-dust requirement | Lubricant-coated aluminum | HDF 880 or UV Melamine 880 | Lower dust generation and reduced bit temperature — see 5G & server |
| Flexible / thin panels | Thin 1100 H18 | UV Melamine 840 or kraft paper | Sealed melamine face resists humidity; kraft gives softer support for thin cores |
| Drill Ø (mm) | Recommended entry thickness (mm) |
|---|---|
| 0.20–0.25 | 0.15–0.20 |
| 0.30–0.35 | 0.18–0.25 |
| 0.40–0.45 | 0.20–0.28 |
Plain 1100 H18 covers holes of Ø0.15 mm and larger on multilayer and PTH work. Below Ø0.15 mm, switch to LCO lubricant-coated entry aluminum — the film cools and lubricates instead of leaving the bit to run dry. Background: what an entry board does and the HDI drilling guide.
| Grade | Hardness | Thickness | Best for |
|---|---|---|---|
| HDF 840 | ~70 HD | 2.0 / 2.5 mm | 2–4 L, cost-first |
| HDF 880 | 75±2 HD | 2.0 / 2.5 mm | Standard 2–12 L |
| UV Melamine 880 | 80±3 HD | 2.0 / 2.5 mm | HDI 1–2 step · 12–24 L |
| UV Melamine 950 | 83±3 HD | 2.5 mm | HDI microvia, tighter tolerance |
| UV Melamine 980 | 80±5 HD | 2.5 mm | Back-drill · high layer count |
| Phenolic PHE | 90±5 HD | 1.50 mm | IC substrate / routing table |
| Sheet size (mm) | Sheets / pallet | MOQ (sheets) |
|---|---|---|
| 940 × 1245 | 300 | 100 |
| 520 × 620 | 800 | 200 |
Cut-to-panel-size is available. Every lot ships with TDS and MSDS/SDS; COA by batch on request — the usual requirement for a Singapore trading house passing documentation through to an end user. Check load and stack before a first order with the stack height calculator and finished thickness calculator.
Reference reading: how to choose a backup board, multilayer drilling, back-drilling principle and moisture control for backup board — relevant year-round in Singapore's humidity.
Comparing markets across the region? See the Southeast Asia drilling consumables hub, or the country pages for the Philippines — where the OSAT end user in our case study sits — plus Malaysia, Vietnam and Thailand.
Contact Mr. Lucky Xu — WhatsApp +86 13433290964, email henan_xu@hotmail.com, or use the contact form. Include alloy/thickness or layer count and smallest hole, panel size and monthly volume for a spec-matched quote.
Actually supplied. A Singapore-registered trading partner has purchased 1100 H18 aluminum entry board at 0.18 mm thickness from YUESHAN continuously since 2017 — over eight years — with the material going to a semiconductor OSAT plant in the Philippines. Multiple 2025 shipments closed with no quality claim.
Two reasons. Singapore hosts close to 20 wafer fabs, 30+ IC design centres and 10+ assembly and test operations, plus new advanced packaging capacity such as Micron's US$7 billion HBM packaging facility in Woodlands, so there is real on-island drilling demand. Separately, Singapore trading houses buy and consolidate for OSAT and PCB plants across ASEAN.
Phenolic PHE — 90±5 HD hardness, 1.50 mm thickness, decomposition temperature above 220 °C. It is the hardest grade in the range and holds its face under substrate drilling heat. Pair it with 1100 H18 entry at 0.15–0.20 mm.
By drill diameter. Ø0.20–0.25 mm holes use 0.15–0.20 mm entry; Ø0.30–0.35 mm use 0.18–0.25 mm; Ø0.40–0.45 mm use 0.20–0.28 mm. Standard alloy and temper is 1100 H18.
Plain 1100 H18 is adequate for holes of Ø0.15 mm and above on multilayer and PTH work. Below Ø0.15 mm — HDI microvia, BGA, IC substrate — use lubricant-coated (LCO) entry, because the coating cools and lubricates the bit rather than letting it run dry.
No. Aluminum entry board is quoted on a formula basis: SMM spot aluminum plus a processing surcharge, disclosed before order confirmation. A 2026 purchase order from our Singapore partner triggered a formula adjustment of roughly 9%, communicated in advance.
TDS and MSDS/SDS with every shipment, and COA by batch on request. Every lot goes through pre-shipment self-inspection. Trading houses reselling to an end user typically need that documentation to pass through unchanged, which is supported.
Two standard sizes: 940 × 1245 mm (300 sheets per pallet, MOQ 100 sheets) and 520 × 620 mm (800 sheets per pallet, MOQ 200 sheets). Cut-to-panel-size is available on request.
Free samples ship in 3–5 days with TDS/MSDS. Production orders are typically 2–3 weeks on FOB or CIF terms.
Yes. Back-drill aluminum is supplied for controlled-depth drilling and stub control on high layer count and high-reliability boards, usually alongside UV Melamine 980 backup. See the back-drilling principle guide for the mechanism.
Contact Mr. Lucky Xu via WhatsApp (+86 13433290964) or email henan_xu@hotmail.com with alloy and thickness for entry material, or layer count and smallest hole diameter for backup, plus panel size and monthly volume.