About Mat-CN - Electric and Machined Components Supplier in China

Mat-CN is a China-based supplier operating with an active catalogue of 5 listings concentrated in two related categories: Electric Components and Machined Components. The catalogue is built around sputtering targets and laboratory-grade target materials, a niche segment of the broader thin-film deposition and semiconductor equipment supply chain. All 5 active items are target materials used in physical vapor deposition (PVD) and related vacuum coating processes, which sit at the intersection of electrical/electronic manufacturing and precision machined parts. The product naming in the catalogue references both indium tin oxide (ITO) bonded to copper, aluminium oxide (Al2O3), cadmium sulfide (CdS), copper indium gallium selenide (CuInGaSe, the CIGS absorber family used in thin-film photovoltaics), and aluminium-magnesium-boron (AlMgB14) compositions, indicating coverage across transparent conductive oxides, compound semiconductor, photovoltaic absorber, and advanced ceramic target families. The supplier is listed under an imported tier classification, and buyers should treat the catalogue as a starting point for technical enquiry rather than as a finished stock list.

The geographic origin of China is significant for this product group, as the country hosts a large share of global mid-stream target manufacturing capacity, particularly for ITO, CIGS precursors, and oxide ceramic targets supplied to display, photovoltaic, and optical coating industries. Target materials in this category are typically specified by purity (commonly 99.99% / 4N for ITO and oxide ceramics, with research grades at 99.999% / 5N), density (expressed as a percentage of theoretical density), grain size, and bonding type where planar or rotary targets are mounted on copper or molybdenum backing plates. Mat-CN's 5 active listings therefore sit within a technically demanding sub-segment of the electric components trade, where buyers are usually R&D laboratories, pilot-line operators, and small-batch thin-film device producers rather than high-volume commodity purchasers.

Product Range and Specialties of Mat-CN

The Mat-CN catalogue covers 5 target-material products spanning four distinct material families. The first item is an ITO (indium tin oxide) sputtering target bonded to copper at 99.99% purity, the standard transparent conductive oxide used in flat-panel displays, touch panels, OLED stacks, and photovoltaic front contacts. The second item is an Al2O3 (aluminium oxide) target, a ceramic oxide used for dielectric layers, optical coatings, and barrier layers in semiconductor and optical thin-film stacks. The third item is a laboratory-grade CdS (cadmium sulfide) target, the n-type window layer paired with CdTe or CIGS absorbers in thin-film photovoltaic cells. The fourth item is a CuInGaSe target (copper indium gallium selenide, the CIGS family), the p-type absorber layer in CIGS thin-film solar modules. The fifth item is an AlMgB14 research target, an aluminium-magnesium-boron superhard ceramic composition used in wear-resistant and tribological research applications.

Across these categories, buyers typically evaluate targets on purity grade (3N to 5N depending on application), relative density (often 95-99% of theoretical for sintered ceramics, 99.5%+ for metallurgical targets), grain size (sub-50 micrometre for sputter-grade material), bonding configuration (indium, elastomer, or metallurgical bonds to OFHC copper or Mo backings), and dimensional tolerance on diameter and thickness. ITO targets for display production are commonly specified at the 90:10 In2O3:SnO2 ratio with 4N purity, while CIGS targets are graded by copper-poor or copper-rich stoichiometry and by the Ga/(In+Ga) ratio that controls the absorber bandgap. Laboratory CdS targets are usually supplied as sintered discs in the 99.99% purity range for research-scale deposition. AlMgB14 targets remain a research-grade item rather than a commodity, so specifications are typically negotiated per enquiry. None of these product-specific HS codes are provided in the supplier facts, so any HS classification should be confirmed directly with the supplier and against the buyer's import regime.

Trade and Export Information - Mat-CN

Sputtering targets and PVD source materials are classified under HS subheading 8112 (articles of beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium, rhenium, thallium, and cermets), with ITO specifically falling under 8112.29 or 8112.99 depending on national tariff notes, while oxide ceramic targets such as Al2O3 are commonly classified under 2849 (carbides, whether or not chemically defined) or 6909 (ceramic wares for laboratory or technical use). CIGS precursor materials may fall under 2842 (other salts of inorganic acids) or under Chapter 81 depending on declared form. Because HS assignment for targets varies with declared composition, bonding, and end-use, buyers should always confirm the exact code on the commercial invoice. China is one of the world's principal exporters of ITO targets and a major producer of oxide ceramic and compound-semiconductor targets, supplying display fabs in South Korea, Japan, and mainland China, CIGS pilot lines in Europe and the United States, and research institutions worldwide.

Typical buyers of these goods are flat-panel display manufacturers, thin-film photovoltaic module producers (both CdTe and CIGS lines), optical coating houses, semiconductor equipment makers, and university or government research laboratories. Documents that are commonly required for cross-border shipment of target materials include a Certificate of Analysis with purity, density, and grain-size data, a Material Safety Data Sheet (MSDS/SDS) covering any cadmium-bearing or selenium-bearing items, and an export packing list that clearly identifies bonded-target assemblies separately from backing plates. For CdS and CIGS materials, buyers frequently request compliance with REACH (EU), RoHS where applicable, and conflict-mineral reporting under the OECD Due Diligence Guidance, particularly for indium and gallium content. Cadmium-containing targets are subject to additional transport controls under IATA for air freight and under the IMDG Code for sea freight, and are often shipped by sea in wooden crates with vacuum-sealed inner bags. Standard Incoterms for this category are EXW, FCA, FOB, and CIF for research and small-batch orders, with DAP becoming more common for direct delivery to fabs.

Sourcing from Mat-CN - Buyer Guidance

Buyers approaching Mat-CN should treat the 5 active listings as a technical enquiry baseline and request a current Certificate of Analysis for each target, specifying the purity (commonly 99.99% for ITO and oxide ceramics), relative density as a percentage of theoretical, average grain size in micrometres, and bonding type where applicable. For the ITO bonded-to-copper item, confirm the In2O3:SnO2 ratio (typically 90:10 wt%), the indium-bond versus elastomer-bond configuration, and the backing plate dimensions. For the CIGS target, request the declared stoichiometry, the Ga/(In+Ga) ratio, and whether the material is supplied as a single quaternary alloy or as a layered metallic precursor stack. For the CdS laboratory target, confirm the cadmium declaration for transport classification and request an SDS aligned with GHS. Given that the catalogue uses the word "virtual" in several product names, buyers should clarify whether listings represent stocked inventory, made-to-order items, or indicative capabilities before assuming availability.

It is also advisable to request a sample coupon or witness coupon for thin-film deposition trials, particularly for the ITO and CIGS items where downstream device performance is sensitive to target density and impurity profile. Lead times for sintered ceramic targets typically run 4-8 weeks for standard geometries and 8-12 weeks for custom diameters or bonded assemblies, while metallurgical targets can often be supplied in 2-4 weeks. MOQs in this segment are usually expressed in pieces rather than kilograms, with one target per geometry being common for research orders and multi-piece batches for production trials. Packaging is typically vacuum-sealed in aluminised bags inside foam-fitted wooden crates, and humidity-sensitive items should be shipped with desiccant and a humidity indicator card. Before issuing a purchase order, buyers should confirm the supplier's quality management system (ISO 9001 is the typical baseline for target manufacturers, though no certification is stated in the available facts), the country of origin statement for customs, and the warranty terms covering density, purity, and bonding integrity on receipt.

What product categories does Mat-CN supply?

Mat-CN lists 5 active products across Electric Components and Machined Components, all of which are sputtering and evaporation target materials: ITO bonded to copper, Al2O3, laboratory CdS, CuInGaSe (CIGS), and AlMgB14 research targets. These are source materials for physical vapor deposition in display, photovoltaic, optical, and research applications.

Which certifications and documents should buyers request?

Buyers should request a Certificate of Analysis covering purity, relative density, and grain size, an MSDS/SDS for any cadmium- or selenium-bearing item, and confirmation of REACH and RoHS status where the goods are destined for the EU. ISO 9001 quality management certification should be confirmed directly with the supplier, as no certification is stated in the available facts.

What quality parameters are typical for ITO and CIGS targets?

ITO targets are commonly supplied at 99.99% purity with a 90:10 In2O3:SnO2 ratio and relative density above 95% of theoretical, bonded to OFHC copper. CIGS targets are graded by stoichiometry and the Ga/(In+Ga) ratio that controls the absorber bandgap, with purity typically 99.99% for production-grade material.

What is the typical MOQ and lead time for these targets?

MOQs in this segment are usually one piece per geometry for research orders and small batches for production trials. Sintered ceramic targets typically require 4-8 weeks for standard sizes and 8-12 weeks for custom or bonded assemblies, while metallurgical targets can often be supplied in 2-4 weeks.

How are target materials typically packaged and shipped?

Targets are normally vacuum-sealed in aluminised bags with desiccant, foam-fitted inside wooden crates, and shipped with a humidity indicator card. Cadmium-containing items such as CdS are subject to IATA and IMDG controls and are usually routed by sea freight rather than air.

Are there transport or regulatory restrictions on CdS and CIGS targets?

Yes. Cadmium sulfide is classified as a Class 6.1 toxic substance under UN2570 for transport, which affects both air and sea freight options and requires specific labelling and SDS documentation. CIGS materials containing selenium and indium may attract conflict-mineral reporting obligations under the OECD Due Diligence Guidance and should be checked against the buyer's import regime.

Which regions typically import sputtering targets from China?

Chinese target manufacturers commonly supply display fabs in South Korea, Japan, and mainland China, CIGS and CdTe photovoltaic lines in Europe and the United States, and university and government research laboratories worldwide. Research-grade and small-batch orders are frequently shipped by express courier or air freight, while production batches move by sea in FCL containers.