Silicon Saxony — Infineon, Bosch, GlobalFoundries, TSMC ESMC cluster on ISO Class 1–3.

Silicon Saxony — Dresden plus the announced Intel Magdeburg site — is Europe’s densest semiconductor-fab construction cluster. ESMC (TSMC + Bosch + Infineon + NXP joint venture), Infineon Smart Power, Bosch Reinraum II, GlobalFoundries Module 5 all ladder around ISO Class 1 lithography bays.

01. Pre-pricing — BG-ETEM / BG RCI scope split per worker

Semi-fab cleanroom build splits across three BGs. The electrical and controls workforce — switchgear, FFU power, sub-fab control panels — sits under BG-ETEM with AVE-Elektrohandwerk (€14.93/h) as the wage anchor. The chemicals-process workforce — wet benches, gas distribution panels, abatement systems — sits under BG RCI. The civil shell — Reinraum-Decke, raised access floor, EXC3 steel — sits under BG-Bau, with Mindestlohn-Bau LG3 €23.97/h from 1 April 2026 and SOKA-BAU 20.2% applying on the construction-trade portion.

The TGA-Generalunternehmer overseeing the dual-classification crews verifies the predominance per individual at mobilisation. ZVEH AVE-Elektrohandwerk binds the energised work, ZVSHK SHK-Tarif binds the wet-utilities work, and IG Metall ERA Bayern picks up the metal-fabrication trade where the receiving Niederlassung is in Bayern.

02. Meldeportal-Mindestlohn + A1 + SEMI S2 documentation

Every posted worker arrives with A1 + German-language contract + Meldeportal-Mindestlohn filing predating site arrival. The SEMI S2-0625 layer adds the operator-side procurement-safety documentation: every contractor brings the equipment-level S2/S14 conformity declaration to the cleanroom interface, and the receiving operator (TSMC / Infineon / Bosch / GlobalFoundries) verifies the conformance against its own QMS.

The §23 AEntG per-worker fine ceiling is €30,000. The S2 documentation is independent of the AEntG fine track and attaches to the receiving operator’s contractual quality file.

03. SOKA-BAU + BG-ETEM / BG RCI onboarding

The Dresden and Magdeburg shell-and-core build phases enrol the civil-trade portion through SOKA-BAU at the 20.2% West rate. BG-ETEM and BG RCI run in parallel for the post-shell electrical and chemicals scope. The Baustellenausweis carries the determining classification per individual; dual-membership for cross-discipline workers is administratively routine but assembled before site presence.

ESMC and Intel Magdeburg are IPCEI Microelectronics-scheme funded — the BMWK and KfW administration introduces additional documentary obligations on the operator side (subsidy-eligibility audits, EU-state-aid disclosures), which cascade into the contractor’s per-worker file requirements.

04. SchwarzArbMoDiG-defensible evidence pack

The Finanzkontrolle Schwarzarbeit’s profile at the Silicon Saxony sites is elevated since 1 January 2026: biometric on-site identity capture, live payroll-IT access, automated cross-matching against A1, DRV, Meldeportal-Mindestlohn and the IPCEI-Mikroelektronik Bewilligungsbescheid records. The minimum survivable pack: SEPA-traceable remuneration to a German bank account, ArbZG-compliant timesheets, retrievable German-language contract, Anerkennung-recognition trail, BG-membership confirmation (per individual), and the receiving-operator’s S2 file linked to the worker’s qualification scope.

05. India and Gulf sourcing corridors — the cleanroom-trade pathway

The Indian semiconductor-trade pool delivers IIW-certified cleanroom-fitters, BHEL-trained controls integrators and TSMC-partner gowning-trained operators (from the Hsinchu-Dresden talent corridor). The Gulf corridor reaches ADNOC and SABIC-served high-purity-chemicals contractor pools. Anerkennung in Deutschland recognition is scoped per worker before deployment; the SEMI S2 receiving-operator file is opened in parallel.

The 8 to 14-week corridor lead-time delivers the Class-1-eligible candidate against the receiving fab’s gowning procedure — Infineon, Bosch, GlobalFoundries or TSMC ESMC — so the first lithography-bay entry does not discover the gap.