Silicon wafers; hyperpure silicon sold in the form of wafers for use in the electrical and electronic industries

'electr':15 'electron':17 'form':8 'hyperpur':3 'industri':18 'silicon':1,4 'sold':5 'use':12 'wafer':2,10

Doped and undoped monocrystalline silicon in the form of wafers for use in the manufacture of semiconductors; doped and undoped monocrystalline silicon wafers in sawed, lapped, polished, etched and coated form for use in the manufacture of semiconductors; monocrystalline silicon wafers for use in the manufacture of semiconductors

'coat':30 'dope':1,18 'etch':28 'form':8,31 'lap':26 'manufactur':15,36,46 'monocrystallin':4,21,39 'polish':27 'saw':25 'semiconductor':17,38,48 'silicon':5,22,40 'undop':3,20 'use':12,33,43 'wafer':10,23,41

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