700 Å
Etchants & buffered oxide etch
Oxide and nitride removal at a controlled etch rate on thermal and deposited films.
- HF 49%
- BOE 6:1
- NH4F 40%
- Hot H3PO4
SEMI C12 · PFA-lined, HDPE or FEP
Jurong Island · Singapore
Helixon blends, filters and releases SEMI-grade wet chemistries — etchants, cleans, solvents, developers and CMP consumables — for 200 mm and 300 mm fabs across Asia Pacific. Every lot ships with an ICP-MS certificate against your incoming spec.
Oxide thickness, read by colour
Thermal SiO2 on silicon takes a characteristic colour at each thickness. We key our six chemistry families to that chart.
Chemistry families
Supplied in 4 L bottles, 20 L jerricans, 200 L drums, 1000 L totes, ISO tank, or straight into your bulk chemical distribution loop.
700 Å
Oxide and nitride removal at a controlled etch rate on thermal and deposited films.
SEMI C12 · PFA-lined, HDPE or FEP
1000 Å
SC-1 and SC-2 chemistries for particle and metallic contamination removal pre-furnace.
SEMI C8–C12 · stabiliser-free peroxide
1250 Å
Photoresist strip, edge bead removal and tool-compatible rinses at low water content.
< 30 ppm H2O · N2-blanketed fill
1500 Å
Metal-ion-free developer at fixed normality, with or without surfactant, batch-matched.
±0.5% normality lot to lot
2000 Å
Slurries and cleans for oxide, tungsten and copper polish, with defect-count reporting.
Filtered to 0.2 µm · agitated tote
2500 Å
High-volume mineral acids delivered to day tanks through your BCD loop or by ISO tank.
ISO tank · road tanker · BCD direct
Qualification
A fab cannot re-qualify a chemistry every quarter. These steps are numbered because each one gates the next — and step five is the one that protects your process window.
01
Send your incoming specification. We match grade, trace metal limits and particle counts, and say within 48 hours what we can and cannot hold.
02
A 4 L qualification lot with a full ICP-MS certificate, in your production packaging. Ten working days from spec agreement.
03
You run it on the tool. We freeze the blend recipe, the raw material source and the container supplier for the duration.
04
Call-off volumes, agreed lead time, and buffer stock held on Jurong Island against your forecast.
05
No change to recipe, raw material source, filtration or packaging without 90 days written notice and a fresh qualification lot.
Where we operate
Jurong Island is Singapore’s dedicated chemical hub — a reclaimed island in the south-west that hosts around a hundred petrochemical and specialty chemical plants on a shared network of jetties, pipelines and utilities. Our blending suite and warehouse sit on it.
Being on the island means feedstock arrives by pipeline and jetty instead of by road, and hazardous goods never leave a licensed site until they leave for your fab. It also means the restricted-zone permits, escort and hazmat routing are ours to handle, not yours.
Purity & documentation
A chemistry that meets spec without a defensible certificate is a chemistry your quality team cannot use. Every lot is assayed before release, against these limits.
| SEMI grade | Single trace metal | Total trace metals | Particles ≥ 0.2 µm | Typical use |
|---|---|---|---|---|
| Grade 2 | ≤ 1 ppm | ≤ 10 ppm | — | General process, non-critical |
| Grade 3 | ≤ 100 ppb | ≤ 1 ppm | ≤ 200 / mL | ≥ 1.2 µm geometry |
| Grade 4 | ≤ 10 ppb | ≤ 100 ppb | ≤ 50 / mL | 0.8–1.2 µm geometry |
| Grade 5 | ≤ 1 ppb | ≤ 10 ppb | ≤ 25 / mL | 0.2–0.8 µm geometry |
| Grade 12 | ≤ 10 ppt | ≤ 100 ppt | ≤ 5 / mL | Advanced node, 300 mm |
Lot-specific ICP-MS assay, batch number, manufacture and expiry date, released by a named chemist.
GHS-format SDS in the destination language, revision-controlled and re-issued on any change.
UN number, packing group, IMDG and IATA declarations prepared for the shipping mode you use.
A retained sample of every lot held for 24 months for excursion investigation.
Free reference
The reference our own engineers use when a fab brings a new chemistry in: the SEMI grade comparison table, trace metal limits mapped to process node, a 31-point supplier qualification checklist, and the container and filtration questions most incoming specs leave out.
Enquiry
Send the chemistry, grade, annual volume and packaging. A process chemist — not a call centre — replies within one business day with availability, lead time and indicative pricing.
For a safety data sheet, quote the product name and CAS number and we will attach the current revision to our reply.
Questions
SEMI Grade 2 through Grade 12. Grade 12 — under 10 ppt for any single trace metal — is available on our etchants, RCA cleans and developers. Bulk acids are supplied to Grade 4 or Grade 5 depending on the chemistry.
Yes. We ship to fabs in Malaysia, Taiwan, Korea, Japan, China and India by sea freight from Tuas or air freight from Changi. Transport classification and destination-language SDS are prepared for each mode.
A sample lot ships ten working days after the incoming spec is agreed. Fab qualification then runs on your schedule; we hold the blend recipe and raw material source frozen for its duration.
Yes, for bulk acids, IPA and peroxide. We deliver into day tanks by ISO tank or road tanker, with sampling at the point of transfer and a certificate against the receiving tank.
We hold a retained sample of every lot for 24 months. On an excursion we release the retain, the line clearance record and the raw material certificate within one business day, and replace the lot at our cost.
Both. We blend, filter and fill on Jurong Island from audited upstream producers. The blend, the filtration and the container are ours; the base chemistry is sourced against a fixed, disclosed supplier list.