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Grinm Advanced Materials Co., Ltd. ("GRIAM"), originally known as Grinm Semiconductor Materials Co., Ltd., and solely sponsored by General Research Institute for Nonferrous Metals ("GRINM") through fund raising, was established in March 1999 and listed on Shanghai Stock Exchange with a registered capital of 838.78 million RMB. The registered address is No. 43 of Bei San Huan Zhong Lu, Haidian District, Beijing.

Low Dislocation Germanium monocrystal

Low Dislocation Germanium monocrystal
Low dislocation germanium is mainly used for the substrate of Ⅲ -V family solar cell, and which is finally used in the space solar panels.
Guojing produce low dislocation germanium by CZ method. The products have the advantage of large diameter, low dislocation density and high mechanical strength.The largest diameter product we can supply now is 4 inches ingot.

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