Polymatech Electronics Limited, announced the successful commissioning of a sapphire ingot crystal-growth puller at its Oragadam campus in the SIPCOT Hi-Tech SEZ, Chennai, marking a significant expansion of the company’s upstream semiconductor materials capability and a further step in its long-term programme of vertical integration — from crystal growth and wafer preparation to semiconductor packaging and finished devices.
The commissioned puller is presently undergoing rigorous process qualification and operational validation. During this phase, the stability of critical utilities — including electrical power quality, ultra-pure water, process gases, thermal conditions and associated operating parameters — is being validated to the exacting standards required for reproducible single-crystal sapphire growth.
In keeping with Polymatech’s methodical engineering approach, the process is being brought up deliberately, one step at a time. The furnace is designed to grow a 100 mm diameter sapphire ingot in five working days, with each ingot providing an approximate usable length of 330 mm after cutting and grinding.
Each qualified ingot is subsequently processed through precision slicing, grinding, lapping and polishing to an epi-ready finish. At steady state, a single puller is expected to support approximately 18,000 epi-ready sapphire wafers annually. For micro-scale device geometries, this substrate capacity can translate into several billion semiconductor dies per year.
The commissioning at Oragadam establishes the process-development and qualification baseline for the Polymatech Group’s next phase of scale-up. Additional sapphire ingot pullers will be deployed at the notified Polymatech SEZ at Nava Raipur, Atal Nagar, Chhattisgarh, as part of the Group’s planned expansion of advanced semiconductor materials manufacturing in India.
The Polymatech SEZ, covering 10.13 hectares at Mandir Hasaud, Nava Raipur, Atal Nagar, has been notified by the Government of India, Ministry of Commerce and Industry, for the manufacture of semiconductors and electronic components. The SEZ will serve as a major platform for the Group’s next phase of semiconductor materials, components and advanced manufacturing expansion.
The sapphire programme reflects the Polymatech Group’s operating model of developing technology and process capability through disciplined engineering, validating it under production conditions, and subsequently scaling proven processes through dedicated manufacturing assets across the Group. The Oragadam installation will therefore serve not only as a crystal-growth platform, but also as the reference environment for process qualification, operating discipline and future multi-puller deployment.
Polymatech’s sapphire expansion in India will complement the Group’s existing sapphire ingot and wafer operations in Grenoble, France, strengthening a cross-border materials capability that combines European materials expertise with Indian process engineering and manufacturing scale.
As with the Group’s broader manufacturing expansion across India, Singapore, France, Estonia and the United States, the sapphire programme forms part of a deliberate strategy to build deeper control over critical semiconductor materials, processes and manufacturing technologies. Polymatech believes that resilient semiconductor manufacturing requires more than downstream assembly: it requires sustained capability across materials, process engineering, packaging and finished-device production.
The programme, like every facility the Group has built across its five-country footprint, has been conceived, engineered and funded entirely from the Group’s own resources.
“In our industry, light begins in the crystal. We have grown this capability the way we have grown everything — patiently, precisely, and through disciplined engineering. The commissioning at Oragadam gives us the process platform; the notified Polymatech SEZ at Nava Raipur gives us the opportunity to carry that capability to industrial scale.
Our objective is clear: to build deeper control over the semiconductor value chain, from the first crystal to the finished chip, while creating globally competitive manufacturing capability from India.”
Eswara Rao Nandam, Managing Director & CEO, Polymatech Electronics Limited
