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    METHOD FOR AQUEOUS PROCESSING OF ALUMINUM NITRIDE AND COMPOSITIONS THEREFROM
    1.
    发明授权
    METHOD FOR AQUEOUS PROCESSING OF ALUMINUM NITRIDE AND COMPOSITIONS THEREFROM 失效
    PROCESS FOR处理水溶液氮化铝和产生的组合物

    公开(公告)号：EP0636108B1

    公开(公告)日：1996-11-13

    申请号：EP93911626.5

    申请日：1993-04-12

    申请人： THE DOW CHEMICAL COMPANY (a Delaware corporation)

    发明人： HOWARD, Kevin, E.

    IPC分类号： C01B21/072 ,  C04B35/58 ,  H01L21/48

    CPC分类号： B01J13/0034 ,  B01J13/0008 ,  C01B21/0728

    摘要： A method of processing aluminum nitride powder in water such that the aluminum nitride exhibits a reduced tendency for hydrolysis comprises forming an aqueous admixture. The admixture includes (a) a liquid medium containing water, (b) aluminum nitride powder, and (c) a combination of buffering agents that includes a weak acid and a conjugate base of the weak acid and controls pH of the water within a range of from » 5.5 to « 7.0. The combination of buffering agents is employed at a lower weight percent concentration than that of the aluminum nitride powder. The combination of buffering agents and the liquid medium suitably form a solution into which the aluminum nitride powder is admixed. The resultant powder is also disclosed.