8 segments · 145 companies · as of Sep 18, 2026
Chip Materials & Chemicals
The wafers, chemicals and consumable parts used to make AI chips
Where it sits
Feeds: Compute Silicon · Memory & Storage · Networking & Interconnect
AI accelerators, HBM and optical chips consume exceptionally pure wafers, patterning materials, gases and packaging chemicals. Suppliers win through contamination control, process performance and long qualification cycles; a material can be critical even when it represents a small part of chip cost.
Why now
HBM stacking and GAA logic raise demand for selective chemistry, thin-film precursors and package polymers. EUV power increases drive new pellicles and resists, while InP expansion follows AI optics demand. Tightness is product-specific; mature wafer markets remain uneven.
Silicon & Compound Wafers
300 mm silicon and SOI wafers feed AI logic and HBM fabs, while InP epitaxy serves optical links. AI-grade demand is stronger than mature-wafer demand; defect control, crystal purity and customer qualification determine usable capacity.
Via Shin-Etsu Handotai, low-defect 300 mm polished and epitaxial silicon wafers for logic and DRAM
leader300 mm silicon wafers for advanced logic; company estimates over 50% of the leading-edge logic wafer market
leader300 mm logic and memory wafers; GlobalWafers America opened its Sherman, Texas plant in May 2025
majorVia SK Siltron, 300 mm wafers; sale of 70.6% to Doosan signed Jul 2026, closing pending
major300 mm logic and DRAM wafers; Singapore FabNext adds next-generation crystal-growth and wafer capacity
majorInP substrates for optical lasers; expanding crystal capacity for 800G and faster data center links
majorVia EpiWorks, InP and GaAs epitaxial wafers for lasers and photodetectors used in optical communications
major4-inch InP epitaxial wafers for AI optical links; commercial sales began at Ibaraki Works in August 2026
challengerInP substrates for data center optical lasers; June 2026 capacity plan addresses rising AI interconnect demand
majorInP substrates for optical links plus GaAs and germanium wafers; China export permits govern shipment timing
majorPhotonics SOI wafers for silicon photonics; 300 mm Singapore qualification supports faster optical links
major300 mm silicon wafers; controlled Okmetic supplies engineered wafers and Shanghai Simgui supplies SOI
challengerVia Zhonghuan Advanced, 200 mm and 300 mm polished and epitaxial silicon wafers for semiconductor fabs
challenger300 mm polished and epitaxial silicon wafers for Chinese foundry and memory qualification programs
challenger200 mm and 300 mm polished and epitaxial wafers for foundries and DRAM makers from its Taiwan production base
majorHyperpure semiconductor polysilicon for single-crystal wafer growth; added cleaning capacity lowers trace-metal impurities
majorEleven-nines polysilicon; Vietnam crushing/cleaning plant opened in August 2026 and enters trials and quality checks
majorVia its 80.5%-owned Hemlock Semiconductor, hyperpure polysilicon feedstock for electronic-grade silicon wafers
majorPolished and epitaxial silicon wafers; Erlin grew its first 300 mm crystal in April 2026 ahead of customer qualification
challengerInP epitaxial wafers for DFB/EML lasers and photodetectors in 800G and faster data center transceivers
nicheOMVPE-grown InP and GaAs epitaxial wafers for optical-communications lasers and photodetectors
niche23.43% equity-accounted Hangzhou wafer affiliate supplies silicon wafers; investment exposure, not a controlled unit
niche
Sources: sumcosi.com, siltronic.com, doosan.com, sumitomo-chem.co.jp, coherent.com, nsig.com
Resists & Lithography Chemicals
EUV and ArF resists, underlayers and solvents pattern advanced logic and DRAM. Qualification barriers remain high; metal-oxide and dry-resist processes open new material positions as conventional chemically amplified resists approach tighter limits.
EUV and ArF resists for advanced logic and DRAM, plus thick-film resists for fine-pitch package lithography
leaderEUV chemically amplified resists and Inpria MOR; May 2026 Entegris agreement cross-licenses metal-oxide resist patents
leaderEUV and ArF chemically amplified resists, silicon-containing hardmasks and trilayer patterning materials
majorEUV negative-tone imaging materials, including DP819 developer, alongside chemically amplified and ArF resists
majorEUV/ArF photoresists and related patterning chemicals; Korean manufacturing includes controlled Dongwoo Fine-Chem
majorArF immersion, ArF dry and KrF photoresists, plus BARC, thinners and developers for semiconductor patterning
challengerAZ photoresists, spin-on carbon underlayers and hardmask materials for multilayer advanced-node patterning
majorARC antireflective coatings and EUV underlayers control reflection and pattern transfer beneath advanced resists
majorPhotoacid generators and high-purity photosensitive compounds used in ArF and EUV resist formulations
majorHigh-purity acrylate monomers used as polymer building blocks in ArF semiconductor photoresists
nicheDry-resist molecules for Lam's EUV process; May 2026 JSR/Inpria agreement adds non-exclusive MOR cross-licensing
challengerVia Gelest, organometallic molecules for Lam's vapor-deposited EUV dry-resist process
nicheWafer photoresists spanning i-line to 13.5 nm EUV, plus functional underlayers and advanced overcoats
majorUltrapure PGMEA/PGME thinners and edge-bead removers for wafer photoresist coating and development
majorE2Stack EUV underlayers, including AL412, tune adhesion and pattern transfer beneath advanced photoresists
nicheSpin-on hardmask and spin-on dielectric materials for deep etch pattern transfer in DRAM, NAND and logic
nicheVia SK Ecoplant's SK Materials Performance, ArF and KrF photoresists for semiconductor patterning
challengerArF dry photoresists for memory via layers; ArF immersion grades target 2X nm logic and 1X-2X nm memory
emergingPhotoresist thinners, developers and supporting process chemicals for wafer lithography and pattern formation
nichePurisol PMA five-nines PGMEA solvent for EUV photoresist formulations and semiconductor thinners
challengerFormulated photoresist and BARC removers for wafer processing, plus photosensitive RDL dielectrics
nicheSU-8 negative-tone epoxy dry-film photoresists form permanent structures in MEMS and semiconductor packages
nicheMulti-Trigger Resist EUV chemistry under development; Tokyo Ohka investment supports commercialization
emerging
Sources: tok.co.jp, jsr.co.jp, fujifilm.com, sinyang.com.cn, tradingview.com, brewerscience.com
Masks, Pellicles & Carriers
Mask blanks, patterned masks and pellicles enable wafer lithography; reticle pods and wafer carriers protect critical surfaces. EUV defect control and membrane durability drive concentrated supply, while FOUPs and FOSBs serve the broader wafer-handling chain.
EUV reflective mask blanks and advanced DUV blanks for logic and DRAM patterning; extremely low defectivity is critical
leaderLow-NA EUV mask blanks with High-NA products under development; supplies precision glass and multilayer coating technology
majorMerchant EUV and advanced DUV photomasks; collaborates on 2 nm-generation mask development
leaderAdvanced photomasks including EUV; developing 2 nm-generation production capability targeted for 2027
majorCommercial EUV pellicles and CNT membranes; Iwakuni-Ohtake scale-up targets capacity of 5,000 CNT sheets a year
majorEUV reticle pods qualified in advanced foundry production, including TSMC; expanding contamination-controlled carriers
leader300 mm FOSB wafer-shipping containers and process carriers; Tokyo plant capacity expansion completed in 2025
majorKT-3003MIR FOUPs and FOSB shipping containers protect 300 mm wafers from particles during transport and processing
majorEUV and DUV reticle pods, storage and transport carriers protecting mask surfaces from particles and contamination
majorAdvanced DUV merchant masks, including the PDMC joint venture with DNP in Taiwan; EUV remains under development
majorULE titania-silicate glass substrates for EUV photomasks and optics, limiting thermal distortion during exposure
majorOMOG and MoSi DUV mask blanks plus MicroSi pellicles; EUV pellicles remain a development program
majorDUV mask blanks plus EUV blank and pellicle development; demonstrates thin membranes under high-power exposure
challengerSemiconductor pellicles and EUV membrane qualification; licenses Canatu CNT technology for next-generation pellicles
challengerCNT membrane technology and production licenses for EUV pellicles; FST is a disclosed commercialization partner
emergingDevelops CNT EUV pellicles with dual-density membrane structures to improve high-power exposure durability
emerging90 nm masks in volume production; 65/55 nm sampling and a planned 40/28 nm mask line per its H1 2026 filing
nicheDUV masks with 28/40 nm PCAR capability and 55/65 nm production for foundry and specialty semiconductor customers
niche
Sources: hoya.com, morningstar.com, agc.com, jp.mitsuichemicals.com, canatu.com, shinpoly.co.jp
Electronic & Rare Gases
Bulk nitrogen and helium keep fabs running; specialty gases clean chambers and etch increasingly deep memory structures. New fab capacity supports long contracts, while purity, recycling and fluorinated-gas availability determine local supply resilience.
On-site nitrogen, bulk gases and helium for fabs; expanding Samsung supply infrastructure in Pyeongtaek
leaderUltra-pure nitrogen, hydrogen and helium systems for logic and memory fabs under long-term on-site supply contracts
leaderNF3 chamber-cleaning gas, WF6 and silane for fabs; private, Hahn & Co 85% and SK 15% after the 2025 sale
leaderHigh-purity nitrogen and bulk fab gases; September 2026 Arizona project adds US semiconductor supply infrastructure
majorVia Taiyo Nippon Sanso, on-site high-purity nitrogen generation and helium supply for wafer fabs
majorHelium purification, storage and distribution support leak testing, heat transfer and other semiconductor-fab uses
majorHigh-purity N2O, germane and fluorinated process gases for semiconductor deposition and etching
majorUltra-high-purity nitrogen, helium and specialty gases including N2O and HCl for wafer fabs
majorNF3, WF6 and C4F6 process gases for memory etch, tungsten deposition and chamber cleaning
majorHigh-purity C4F6 FC-2316 for high-aspect-ratio oxide etch and HBr for silicon etching in memory fabs
majorVersum-derived high-purity etch and chamber-cleaning gases, including NF3, for logic and memory fabs
majorVia wholly owned Neochem, NF3 from Yongyeon/Ulsan and Oksan plants acquired from Hyosung Chemical in 2025
majorHigh-purity N2O and ammonia for oxide and nitride deposition in Korean logic and memory fabs
majorFive-nines CF4, CHF3, CH2F2, COS and C4F8 etch gases for semiconductor pattern transfer
nichePurified neon and electronic specialty gases; SK hynix partnership develops recovery and recycling of lithography neon
challengerNF3 chamber-cleaning and WF6 tungsten-deposition gases for Chinese DRAM, NAND and logic manufacturing
challengerCEG-series fluorinated gases for selective SiO2 and SiN etch, including CEG34E process chemistry
nicheHigh-purity neon, krypton and xenon laser mixtures plus electronic specialty gases for Chinese semiconductor fabs
challengerSix-nines ammonia and on-site nitrogen supply for Chinese electronics and semiconductor plants
challengerWF6 for tungsten deposition and C4F6 for dielectric etch in semiconductor memory and logic processes
challengerElectronic-grade F2 and F2/N2 mixtures for CVD chamber cleaning across semiconductor and display processes
niche
Sources: linde.com, airproducts.com, hyosungtnc.com, en.sedaily.com, awi.co.jp, solvay.com
CMP & Wet Chemicals
CMP pads and slurries planarize logic and HBM wafers; ultrapure acids and solvents clean and etch their surfaces. More process steps support demand, while particle control, selectivity and local chemical purity decide qualifications rather than bulk chemical capacity.
CMC-derived CMP slurries and pads, post-CMP chemistry and ultrapure filters control wafer defects and contamination
leaderIC-series polishing pads, CMP slurries and post-CMP cleans for advanced logic interconnects and memory wafers
leaderPLANERLITE CMP slurries and silicon-wafer polishing materials for low-defect advanced semiconductor surfaces
majorCMP slurries and ultrapure wet chemicals, including the electronic-chemicals business bought from Entegris in 2023
majorHS-series ceria slurries, including high-rate HS-0 and selective HS-8, for oxide planarization in memory and logic
majorUltrapure HF/BOE and HSN nitride etchants, plus silica/ceria and Cu/W CMP slurries for memory and logic wafers
majorUltrapure H2O2 for wafer cleans and etchants, including the Samyoung Pure Chemicals JV with Mitsubishi Gas Chemical
majorCalcined and colloidal ceria CMP slurries for oxide planarization in memory and logic; separate from its CMP tools
challengerCopper and barrier CMP slurries plus post-CMP cleaners qualified for Chinese logic and memory processes
challengerPolyurethane CMP polishing pads and matching slurries supplying domestic alternatives for Chinese wafer fabs
challengerCES-300 and CES-330F ceria slurries for selective STI and interlayer-dielectric planarization
nicheSuper-pure H2O2 for wafer cleaning; Korean supply includes the Samyoung Pure Chemicals JV with Hansol
majorUltrapure hydrofluoric acid and buffered HF for oxide removal and semiconductor surface cleaning
majorElectronic-grade hydrofluoric acid and buffered fluoride etchants from its high-purity fluorochemical production
majorUltrapure HF, HCl, sulfuric acid and formulated etchants for low-metal-contamination wafer cleans
majorIPA SE ultrapure isopropyl alcohol for wafer cleaning and drying at advanced semiconductor fabs
majorUltrapure sulfuric acid, solvents and process chemicals retained after the 2021 precision-microchemicals sale
nicheCMP slurries and post-CMP cleans; SK enpulse slurry acquisition closed in December 2025
challengerJ.T.Baker CMOS-grade sulfuric acid and electronic solvents for low-contamination semiconductor wet processing
majorTechniEtch selective metal etchants and formulated cleaners for wafer fabrication and advanced packaging
nicheACESOL colloidal-silica slurries for oxide CMP and silicon-wafer stock, edge and backside polishing
nicheUltraclean acids, solvents and photoresist-supporting wet reagents for semiconductor wafer processing
challengerElectronic-grade phosphoric and sulfuric acids used in semiconductor wafer-cleaning and etchant formulations
challengerNalco Water electronic-polishing abrasives and fab water-treatment chemistry; Ovivo adds ultrapure-water systems
niche
Sources: entegris.com, soulbrain.co.kr, kctech.com, avantorsciences.com, technic.com, en-ca.ecolab.com
Deposition Precursors & Sputtering Targets
ALD/CVD molecules build high-k DRAM capacitors, gates and metal films; sputtering targets form interconnect and barrier layers. HBM and advanced logic increase purity demands and material intensity, with qualified chemistry harder to replace than bulk metal supply.
High-purity semiconductor sputtering targets for advanced logic and HBM; July 2026 plan expands qualified capacity
leaderHafnium high-k, tungsten and molybdenum ALD/CVD precursors through its Versum-derived thin-film portfolio
leaderHafnium and zirconium high-k precursors for DRAM capacitors, plus ruthenium materials for advanced thin films
majorHigh-purity silicon, metal and organometallic ALD/CVD precursors for logic gates, barriers and memory structures
majorALOHA advanced deposition molecules; first Taiwan advanced-materials plant opened in Taichung in March 2026
majorVia UP Chemical, hafnium and zirconium high-k precursors for DRAM capacitors and advanced logic
majorHigh-purity silicon and metal ALD/CVD precursors for high-density DRAM capacitors and logic thin films
majorVia SK Ecoplant's SK Trichem, high-k and silicon deposition precursors for memory and logic thin films
majorZAC/ZEBRA zirconium and HAC hafnium precursors for high-k films, plus TiCl4 for metal deposition
majorHigh-k capacitor and silicon thin-film precursors for DRAM and logic, including HBM-generation memory processes
challengerHigh-purity organometallic compounds for high-k ALD/CVD; TMA synthesis also serves non-semiconductor markets
challengerTantalum and other high-purity sputtering targets for barrier layers and interconnect films in advanced chips
majorElectronic-grade aluminum, copper and tantalum sputtering targets for semiconductor metallization
majorVia Tosoh SMD, high-purity aluminum and cobalt targets for semiconductor wiring and contact films
majorHigh-purity aluminum, titanium and tantalum sputtering targets for Chinese logic and memory fabrication
challengerFive-nines tungsten, cobalt and titanium targets for 300 mm wafer gates, barriers and interconnects
nicheHigh-purity metal sputtering targets for semiconductor wiring and barrier films; distinct from Grinm wafer spin-offs
challengerTrimethylgallium and trimethylindium MO sources for compound-semiconductor epitaxy, including optical-device materials
nicheVia HS Materials, high-purity synthesized precursors for semiconductor deposition and finer circuit processes
nicheTEOS, TEOP and TEB CVD sources plus hafnium and zirconium ALD precursors for insulating thin films
nicheVia 41%-owned Nanmat Technology, CVD/ALD precursors and source canisters for TSMC and other Taiwanese fabs
nicheDisilane, germane mixtures and SiCl4 feed deposition of silicon and silicon-germanium semiconductor films
niche
Sources: jx-nmm.com, merckgroup.com, adeka.co.jp, airliquide.com, kojundo.co.jp, nanmat.com
HBM & Package Materials
Underfill, non-conductive films, mold compounds and thermal materials protect HBM stacks and large chiplet packages. High-end dielectric-polymer capacity and qualification lead times remain constraints as larger packages demand lower warpage and better heat removal.
HBM non-conductive films, molding compounds and TIMs; HD MicroSystems JV supplies package dielectric polymers
leaderEME epoxy molding compounds and low-warpage encapsulants for dense memory and multi-die packages
leaderSole qualified MR-MUF underfill supplier for SK hynix HBM4 12-/16-high; SK Inc.'s Evertech Enterprise pursues a second source
majorHD MicroSystems photosensitive polyimides and Laird thermal interfaces for HBM and high-power chiplet packages
majorPIMEL photosensitive polyimide for package insulation and redistribution layers; expanding advanced-packaging capacity
majorSilicone encapsulants and thermal interface materials for package heat and stress control around high-power chips
majorPHOTONEECE photosensitive polyimides for chip passivation and fine-pattern redistribution-layer insulation
majorLEXCM liquid molded-underfill and encapsulation materials for fine-gap flip-chip and stacked-die packages
majorLOCTITE underfills and die-attach films plus BERGQUIST thermal interfaces for GPU and other high-power packages
majorVia Nagase ChemteX, capillary and molded underfills for fine-pitch flip-chip interconnect protection
majorUltrathin NCF adhesive films fill micro-gaps and insulate fine-pitch joints during HBM die stacking
challengerELEPMOUNT die-attach films and dicing tapes for handling and bonding thin memory and logic dies
majorPTM6880 phase-change thermal interfaces and electronic polymers for heat removal from high-power chip packages
majorHeat-Spring indium interfaces and gallium-based liquid-metal TIM0/TIM1 materials for bare-die GPU and ASIC cooling
nicheFine solder balls, Cu-core balls and microbump fluxes for dense chip-package interconnects
majorMicro solder balls and copper-core balls for HBM/2.5D package interconnects and FC-BGA assembly
majorGold, copper and silver bonding wires plus solder balls for semiconductor die-to-package electrical connections
majorVia Heraeus Electronics, copper and gold bonding wires for memory, logic and power-device package interconnects
majorSpherical silica for low-stress encapsulants and spherical alumina for thermally conductive package fillers
majorFine spherical silica fillers for narrow-gap molding and underfill, plus alumina fillers for thermal interfaces
challengerLow-warpage DDR5 molding compounds; wholly owned Momentive adds semiconductor silicones and thermal materials
challengerAdwill dicing and die-attach films plus bump-support films protect thin dies through grinding and package assembly
majorICROS wafer-protection and thermal-release tapes for backgrinding, dicing and semiconductor packaging
majorEpoxy molding compounds protect DRAM, NAND and foundry packages from moisture, stress and heat
major
Sources: namics.co.jp, trendforce.com, qnityelectronics.com, lgchem.com, dshm.co.kr, lintec-global.com
Quartz, SiC & Ceramic Materials
High-purity quartz sand feeds wafer-growth crucibles and fused quartzware; SiC and ceramic parts withstand fab plasma and heat. Semiconductor qualification is distinct from solar-grade quartz, and concentrated qualified feedstock adds risk as wafer and AI package capacity expands.
CVD solid-SiC focus rings consumed in high-power plasma etch for advanced logic and memory
leaderQuartz tubes, boats and chamber parts; Momentive Technologies supplies upstream semiconductor-grade quartz
majorVia Covantics, formerly Conamic, HSQ quartz tubes and high-purity silica for semiconductor CVD and diffusion tools
majorIOTA high-purity quartz sand for silicon-growth crucibles and fused-quartz tubing used in semiconductor fabs
majorVia its 50% The Quartz Corp JV with Norsk Mineral, high-purity quartz sand for semiconductor wafer-growth crucibles
majorHigh-purity quartz sand and PQ870/PQ871E fused ingots feed semiconductor crucibles and fabricated quartzware
challengerSilicon electrodes and focus rings plus SiC consumables for semiconductor plasma-etch chambers
majorAluminum nitride heaters and electrostatic chucks for tightly controlled wafer temperatures in deposition and etch
majorHigh-purity alumina focus rings, nozzles and showerhead components for plasma-resistant etch chambers
majorChamber-part cleaning and coatings; consolidated MiCo Ceramics supplies ceramic heaters and electrostatic chucks
majorVia Tosoh Quartz, fused-quartz boats, tubes and fabricated chamber parts for wafer diffusion and CVD
majorVia Shin-Etsu Quartz, high-purity fused-quartz process tubes, boats and chamber parts for semiconductor fabs
majorThin-wall CVD-SiC components, high-purity quartz and machinable ceramics for etch and deposition chambers
majorVia NxEdge, coated chamber components and precision cleaning/refurbishment for advanced wafer processing
majorSilicon etch electrodes and focus rings plus quartz chamber parts for memory and logic wafer processing
majorAlumina and AlN electrostatic chucks for 200 mm and 300 mm wafer handling and temperature control
majorHigh-purity quartz and SiC fab components plus AlN ceramic substrates and optical-communication packages
majorPERMA KOTE SiC-coated graphite susceptors and parts for semiconductor epitaxy and high-temperature processing
majorAP900R plasma-resistant alumina electrostatic chucks for controlled wafer holding in semiconductor processes
nicheNTK ceramic electrostatic chucks with uniform wafer-temperature control for semiconductor etch and deposition
nicheHigh-purity graphite and SiC-coated susceptors for semiconductor epitaxy and MOCVD thermal chambers
nicheQD9 and QD9+ synthetic-quartz focus rings and chamber components replace natural quartz in semiconductor plasma etch
challengerSilicon, quartz and ceramic chamber components from the former SK fine-ceramics business, now under TKG Taekwang
nicheHigh-purity fused-quartz tubes, ingots and fabricated parts for semiconductor diffusion and deposition chambers
challenger
Sources: tck.co.kr, maruwa-g.com, sibelco.com, thequartzcorp.com, en.quartzpacific.com, heraeus.com
Glossary
- EUV
- Extreme ultraviolet lithography uses 13.5 nm light to pattern very small chip features.
- CMP
- Chemical mechanical planarization combines slurry and a polishing pad to flatten layers during chip fabrication.
- Precursor
- A high-purity molecule delivered to a process chamber to deposit a controlled film on a wafer.
- Pellicle
- A thin membrane that shields a photomask from particles while transmitting the exposure light.
- MR-MUF / NCF
- Mass-reflow molded underfill and non-conductive film are different materials and processes for assembling HBM stacks.
- InP
- Indium phosphide is a compound semiconductor used in lasers and other optical components for fast data links.
Heat, spend, exposure and shares are editorial estimates. How to read the map ↗