Capabilities
What we deliver — across the crystalline silicon value chain and beyond.
Stark Solar Semi supports turnkey and semi-turnkey projects across Ingot, Wafer, Cell, and Module — backed by cleanrooms, utilities, automation, digital systems, equipment localisation, and BESS assembly.
01 / Value Chain
From polysilicon to module — every stage.
Ingot
Cz mono ingot
CZ pullers, hot-zone strategy, raw material flow, energy optimisation, yield and resistivity control.
Wafer
Diamond wire slicing
Cropping, squaring, gluing, slicing, degumming, cleaning, sorting; cost-per-wafer modelling.
Cell
PERC / TOPCon / HJT / BC
WPH-based capacity, equipment sourcing, line balancing, process stabilisation, ramp-up support.
Module
Glass-Glass / Glass-Backsheet
Stringing, layup, lamination, framing, junction box, IV/EL testing; new lines and upgrades.
Scope across all stages
- Technology selection and equipment sourcing
- Factory layout, process flow design, and utility zoning
- Installation supervision and commissioning management
- Ramp-up support and yield engineering
- Workforce planning and training architecture
- Supply-chain localisation and BOM optimisation
02 / Upstream
Ingot & wafer capability.
Cz monocrystalline ingot and diamond-wire wafer manufacturing — anchored by a top ingot and wafer turnkey solution provider with proven GW-scale deployment capability.
Ingot manufacturing
- CZ puller selection and hot-zone configuration
- Polysilicon charging and melting recipe design
- Growth parameter optimisation for resistivity and oxygen control
- Energy consumption benchmarking and reduction
- Yield analytics and ingot quality classification
- Raw material procurement strategy (polysilicon, quartz, graphite)
Wafer manufacturing
- Diamond wire slicing line setup and process tuning
- Cropping, squaring, and brick preparation workflow
- Gluing and degumming process optimisation
- Cleaning, sorting, and inspection automation
- Cost-per-wafer modelling and kerf-loss reduction
- Thin-wafer readiness assessment (130 µm and below)
03 / Cell
Solar cell capability.
Active cell-line delivery across 1.3 GW and 2.4 GW flagship projects. Primary route: LPCVD-based TOPCon with full equipment procurement and detailed process design (EPD) scope.
Cell-line scope
- WPH-based capacity planning and line balancing
- Equipment procurement and vendor negotiation
- Process recipe development and stabilisation
- Ramp-up management and yield engineering
- Inline metrology and defect classification
- Efficiency roadmap from PERC baseline to TOPCon/HJT
04 / Module
Module manufacturing.
New-line setup, brownfield upgrades, and Glass-to-Glass capability — covering stringing, layup, lamination, framing, junction box, and full IV/EL test integration.
Module line scope
- Stringing, tabbing, and cell interconnection
- Layup design for Glass-Glass and Glass-Backsheet formats
- Lamination process tuning and cycle-time optimisation
- Framing, junction-box attachment, and sealing
- IV testing, electroluminescence (EL) imaging, and sorting
- Line upgrade pathways — larger formats, half-cut, MBB, shingling
Module BOM strategy
- Glass sourcing — tempered, AR-coated, bifacial-compatible
- Encapsulant and backsheet material selection and qualification
- Ribbon, flux, and interconnection material optimisation
- Junction box and connector standardisation
- Frame and mounting-system material specification
- BOM cost modelling and localisation roadmap
05 / Equipment & Materials
Equipment localisation, BOM & critical materials.
Equipment manufacturing & localisation
Stark Solar Semi works with strategic OEM partners to support equipment localisation for the Indian market — including CZ pullers, wafer slicing systems, cell-line tools, and module assembly equipment. Our scope covers technology transfer feasibility, vendor qualification, local manufacturing partner identification, and phased localisation planning aligned with PLI and government incentive frameworks.
Cell manufacturing BOM
- Silver paste (front and rear metallisation)
- Aluminium paste and back-surface field materials
- Process chemicals — HF, HNO3, KOH, NaOH, DI water
- Specialty gases — SiH4, NH3, N2O, TMB, PH3, BCl3
- Targets and consumables for PVD/sputtering
- Cleaning agents, texturing additives, and surfactants
Critical materials — quartz & graphite
Quartz crucibles and graphite hot-zone components are among the highest-consumption and most supply-sensitive materials in ingot manufacturing. Stark Solar Semi maintains active sourcing relationships for high-purity quartz products and graphite thermal components — and is evaluating strategic initiatives to bring selected manufacturing closer to the point of use.
Planned strategic initiatives
- Silver paste slurry facility — localised production to reduce import dependency and improve lead times
- Quartz products manufacturing — high-purity quartz crucibles and components for ingot hot zones
- Selected equipment localisation — phased domestic manufacturing of key process tools in partnership with OEM technology licensors
06 / Infrastructure & Digital
Cleanroom, process utilities & smart factory.
Cleanroom
NGAF / Suzhou National Purification
Cleanroom design, FFU systems, HEPA/ULPA filtration, airflow modelling, intelligent environmental monitoring — supporting ISO Class 5 through Class 8 for solar, semiconductor, lithium-ion, pharma, and electronics manufacturing.
Process utilities
Jiangsu Shike Technology
Ultra Pure Water (UPW), process piping, specialty gas systems, chemical delivery modules (CDM), gas cabinets, VMB, BSGS, nitrogen generation, exhaust and scrubbing, electromechanical installation.
Smart factory
Semi-Tech
MES, APS, EAP, WMS, RFID traceability, quality and yield analytics, OEE monitoring, equipment maintenance scheduling, BI dashboards, and AI-driven process control.
Improved OEE
Reduced process variation
Better defect traceability
Faster problem isolation
Lower manual dependency
Stronger warranty traceability
07 / Energy Storage
BESS module & pack assembly.
Turnkey BESS assembly line capability — anchored by a listed entity with deep BESS line expertise. Agreement under final review.
Find the capability you need.
Tell us about your project — stage, scale, and technology — and we will map the right capability to your requirements.