发明名称 METHOD AND APPARATUS FOR SEALING
摘要 PURPOSE:To alleviate a control operation over sealer supplying conditions by supplying sealers separately by several times to suitably form a thin nonhermetically sealing package. CONSTITUTION:Inner leads 9 and a pellet 11 inside a supporting ring 4 of a carrier tape 2 in which the pellet 11 is disposed downside are uniformly coated thinly with resin 29 by a first supplying unit 27 disposed on an upper stage runner 23, and the inner lead 9 group and the pellet 11 are sealed by a first sealing layer 30. After they are baked, the tape 2 is reversely rotated by sprockets, and disposed upside down. The side periphery of the pellet 11 of the tape 2 in which the pellet 11 is disposed upside is coated with resin 31 by a second supplying unit 28 disposed in an intermediate stage runner 24, and the rear surface of the inner lead circuit 9 group and the side face of the pellet 11 are completely sealed by a second sealing layer 32. Thus, the front and rear surfaces are separately coated with the resin to suitably coat them with the resin thinly.
申请公布号 JPS63266840(A) 申请公布日期 1988.11.02
申请号 JP19870099796 申请日期 1987.04.24
申请人 HITACHI LTD 发明人 TAKEI EIJI;SAKAMOTO YUZABURO;CHUMA TOSHIO;IIZAKA SUSUMU
分类号 H01L21/56 主分类号 H01L21/56
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