Lei Qi

Polycrystalline silicon ingots and preparation method thereof, polycrystalline silicon chips and polycrystalline silicon ingot casting crucible

Bonding and splicing method of seed crystals for monocrystal silicon-like cast ingots and crucible for casting ingot

Paving method of seed crystals, pseudo-single crystal silicon wafer and preparation method of pseudo-single crystal silicon wafer

Polycrystalline silicon ingot and preparation method thereof

Monocrystal-like silicon ingot preparation method and methods for preparing monocrystal-like silicon wafers by cutting monocrystal-like silicon ingot

Polycrystalline silicon cast ingot thermal field structure

Silicon powder treatment method and applications

Crucible for polycrystalline silicon ingot, production method of crucible as well as polycrystalline silicon ingot and production method thereof

Air intake control device and polycrystalline silicon ingot furnace of polycrystalline silicon ingot furnace

Seed crystal laying method and crystalline silicon and preparation method thereof