METHOD FOR PRODUCING MONOCRYSTALLINE SILICON CHIPS Russian patent published in 2007 - IPC C30B33/00 C30B29/06 H01L21/304 B24B9/00 

Abstract RU 2308556 C1

FIELD: treatment of silicon mono-crystals grown by Czochralski method, possibly manufacture of mono-crystalline silicon chips- members of solar batteries and integrated circuits.

SUBSTANCE: method comprises steps of pseudo-squaring of silicon mono-crystal for further grinding ribs of pseudo-squared ingot; cutting mono-crystals by chips. Ribs are ground alternatively; each rib is ground layer by layer in motion direction of tool and in parallel relative to lengthwise axis of ingot.

EFFECT: improved quality of mono-crystalline silicon chips due to safety of near-contour region of worked zone of ingot, lowered material (silicon) losses at working ingots.

3 cl, 1 ex, 1 tbl, 3 dwg

Similar patents RU2308556C1

Title Year Author Number
METHOD OF TREATMENT OF GROWN INGOTS OF SILICON SINGLE- CRYSTALS 2000
  • Beringov Sergej Borisovich
  • Ushankin Jurij Vladimirovich
  • Shul'Ga Jurij Grigor'Evich
RU2186887C2
PROCESS OF GETTERING TREATMENT OF SEMICONDUCTOR PLATES 2001
  • Ehsterzon M.A.
  • Jakunin V.A.
  • Sakharova O.P.
RU2224330C2
METHOD FOR PRODUCING MONOCRYSTAL WAFERS 2005
  • Varakin Mikhail Viktorovich
  • Kulikov Vladimir Ivanovich
  • Pogudin Aleksandr Alekseevich
  • Khan Vladislav Eliseevich
RU2284073C1
METHOD OF CUTTING MONOCRYSTALLINE INGOTS OF SEMICONDUCTORS INTO PLATES 0
  • Zhukov Nikolaj Aleksandrovich
  • Perevoshchikov Viktor Aleksandrovich
  • Skupov Vladimir Dmitrievich
SU1622141A1
METHOD FOR CUTTING SEMICONDUCTING INGOTS INTO PLATES 1996
  • Khudobin L.V.
  • Krupennikov O.G.
  • Belov M.A.
  • Rabinovich V.E.
RU2108225C1
METHOD OF CUTTING SILICON INGOT INTO PLATES 2010
  • Belousov Viktor Sergeevich
  • Kharlamov Vitalij Jur'Evich
  • Shagaeva Irina Olegovna
RU2431564C1
SEMICONDUCTOR MATERIAL INGOT CALIBRATION METHOD 2018
  • Zhukov Yurij Nikolaevich
  • Tikhonov Igor Nikolaevich
  • Agaeva Elvira Eldarovna
RU2682564C1
NON-PLANAR LOW-FREQUENCY POWER RECTIFIER DIODE AND METHOD OF MAKING SAID DIODE 2009
  • Gunger Jurij Robertovich
  • Kuznetsov Evgenij Viktorovich
  • Abramov Pavel Ivanovich
  • Selivanov Oleg Jushevich
RU2411611C1
METHOD OF PREPARING SILICON MONOCRYSTALS INVOLVING MONOCRYSTAL GROWTH DISRUPTION 2000
  • Beringov Sergej Borisovich
  • Ushankin Jurij Vladimirovich
  • Shul'Ga Jurij Grigor'Evich
RU2189407C2
SUBSTRATE FOR SOLAR CELL AND SOLAR CELL 2011
  • Ooiva Khideo
  • Vatabe Takenori
  • Otsuka Khirojuki
  • Khara Kazuo
RU2569902C2

RU 2 308 556 C1

Authors

Egorov Evgenij Petrovich

Kazimirov Nikolaj Ivanovich

Sorokin Sergej Leonidovich

Batjukov Valerij Vladimirovich

Knjazev Stanislav Nikolaevich

Dates

2007-10-20Published

2005-12-28Filed