FIELD: crystal growing. SUBSTANCE: polycrystalline silicon is loaded into quartz bowl and cylindrical shield 235-240 mm in diameter is placed coaxially with monocrystals to be grown, lower end of the shield being located over the melt plane at a height h determined from formula h = (A-D)/B, where D is specified diameter of silicon monocrystalline ingot (76-150 mm), A dimension coefficient (210-240), and B parameter (4.6-5.0). Crystallizer is sealed and inert gas is fed at velocity 15 l/min, whereupon melt is seeded to start growth of monocrystal. Yield of semiconductor-quality product is higher than 72%. EFFECT: eliminated crystal defects. 1 dwg, 3 ex
| Title | Year | Author | Number | 
|---|---|---|---|
| SILICON MONOCRYSTAL GROWING APPARATUS, SCREENING DEVICE AND CRYSTAL GROWING PROCESS BY CHOKHRALSKY METHOD | 2002 | 
 | RU2231582C1 | 
| MONOCRYSTALLINE SILICON OBTAINING METHOD | 1995 | 
 | RU2057211C1 | 
| DEVICE FOR SILICON SINGLE CRYSTALS GROWING BY CHOKHRALSKY METHOD | 2007 | 
 | RU2355834C1 | 
| DEVICE FOR GROWING OF SINGLE CRYSTALS OF SILICON BY CZOCHRALSKI METHOD | 2008 | 
 | RU2382121C1 | 
| METHOD FOR GROWING SILICON MONO-CRYSTAL FROM MELT | 2003 | 
 | RU2241078C1 | 
| METHOD OF PREPARING SILICON MONOCRYSTALS INVOLVING MONOCRYSTAL GROWTH DISRUPTION | 2000 | 
 | RU2189407C2 | 
| METHOD OF DETERMINING DEFECTLESS ZONE OF SILICON MONOCRYSTAL | 2000 | 
 | RU2189408C2 | 
| METHOD OF GROWING SILICON MONOCRYSTALS | 1995 | 
 | RU2076909C1 | 
| DEVICE FOR GROWTH OF MONOCRYSTALS FROM MELT BY VERTICAL PULLING TECHNIQUE | 2013 | 
 | RU2534103C1 | 
| SILICON MONOCRYSTAL PRODUCTION METHOD | 1992 | 
 | RU2042749C1 | 
Authors
Dates
2003-03-20—Published
2000-11-01—Filed