发明名称 |
Sub power plane to provide EMC filtering for VLSI devices. |
摘要 |
<p>Electromagnetic filtering for a VLSI device having multiple power input leads is realized by employing a sub-power plane which is physically separate from a main power distribution system on a circuit board. The sub-power plane is placed directly under a corresponding VLSI device. Decoupling capacitors are connected to the sub-power plane and, in turn, to each of the power input leads on the VLSI device. Power is supplied from the main power distribution system to the sub-power plane via a ferrite bead type filter. <IMAGE></p> |
申请公布号 |
EP0472317(A1) |
申请公布日期 |
1992.02.26 |
申请号 |
EP19910307133 |
申请日期 |
1991.08.02 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
VINCE, RICHARD A. |
分类号 |
H05K1/14;H03H1/00;H05K1/02 |
主分类号 |
H05K1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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