Memc Electronic Materials

 

MEMC ELECTRONIC MATERIALS is the Italian branch of a leading American multinational that produces silicon wafers as raw materials for the integrated electronic component manufacturing industry.

 

The silicon processing method used at MEMC’s plant in Novara is an extremely advanced and complex process that requires a very high degree of integration and the use of state-of-the-art technology for supervising and controlling production.

 

STAIN automated four of the plant’s departments (3 polishing and 1 chemical washing). Below is a description of the STAIN’s solution applied to one of the silicon wafer polishing departments.

 

The department comprises a series of automatic machining centres where all the stages of the polishing process takes place. Each machining centre is controlled by closely integrated PLCs, robots and supervision stations.

 

The first machining centre prepares the silicon wafers for polishing. The prepared material is relayed by an automatic sorting system piloted by radio-frequency readers to the polishing centres. After polishing, the material is sent to the measuring station for final testing. The operating parameters are adjusted automatically based on the measurements taken for the first wafers in each production batch in order to keep the process under control. The material is then placed automatically in final containers ready for despatch to the customer.

 

STAIN and MEMC pooled their efforts in developing the entire departmental computer architecture based on a central server  (SQL SERVER) and PC and PLC stations onboard the machine.

 

The main results of the project are summarized below.

 
  • Very high degree of computer architecture integration.

  • Complete tracking of process and product parameters for each processed batch.

  • Real-time process supervision, monitoring and control.

  • Automatic process parameter adjustment based on online product measurements.

  • Optimized computerisation of WIP stocks.

  • Sharing of production, process and quality data at a factory level on open standard systems, allowing statistical analysis of production and processes.

 
 
Stain - Soluzioni software per: controllo avanzamento produzione - raccolta dati - gestione commesse - ottimizzazione produzione - sistemi mescalcolo oee - gestione inventario - gestione logistica e spedizioni - gestione scorte magazzino - gestione manutenzione - controllo qualità - gestione laboratorio - automazione industriale plc - raccolta dati produzione - pianificazione e schedulazione produzione