公开(公告)号：US20040191957A1

公开(公告)日：2004-09-30

申请号：US10820761

申请日：2004-04-09

Applicant: NORTHROP GRUMMAN CORPORATION

Inventor： Li-Shu Chen ,  Philip C. Smith ,  Thomas J. Moloney ,  Howard Fudem

IPC: H01L021/44

CPC classification number: H01L23/10 ,  B81B2201/018 ,  B81B2207/097 ,  B81C1/00301 ,  B81C2203/0118 ,  H01L21/50 ,  H01L2924/0002 ,  H01L2924/01079 ,  H01L2924/3011 ,  H01L2924/00

Abstract: A plurality of electronic circuits and associated signal lines are positioned at respective locations on a base wafer. A cover wafer, which fits over the base wafer, includes a corresponding like number of locations each including one or more cavities to accommodate the electronic circuit and associated signal lines. The cover wafer includes a plurality of vias for making electrical connection to the signal lines. A multi layer metallic arrangement hermetically seals the periphery of each location as well as sealing the bottom of each via. The joined base and cover wafers may then be diced to form individual die packages.

Abstract translation: 多个电子电路和相关联的信号线位于基底晶片上的相应位置。 安装在基底晶片上方的覆盖晶片包括相应的相似数量的位置，每个位置包括一个或多个空腔以容纳电子电路和相关联的信号线。 覆盖晶片包括用于与信号线进行电连接的多个通孔。 多层金属装置密封每个位置的周边以及密封每个通孔的底部。 然后可以将接合的基底和覆盖晶片切割成单独的管芯封装。