Patent ID: 6559526
Filing Date: 2003-05-06
Classification: H01L

Abstract:
A stacked-type multi-chip package of a leadframe comprising:a leadframe paddle; a plurality of upward stair-like leads around said leadframe paddle, wherein each of said stair-like leads has several steps, and each included angle of a pair of horizontal steps of said stair-like leads is a little less than ninety degrees; a first chip mounted on said leadframe paddle, wherein an active surface of said first chip is opposed to said leadframe paddle; a plurality of first wires connecting a first horizontal step of said stair-like leads to said active surface of said first chip, wherein said first horizontal step of said stair-like leads is nearest said leadframe paddle; a second chip stacked on said first chip, wherein an active surface of said second chip is opposed to said leadframe paddle; and a plurality of second wires connecting said second horizontal step of said stair-like leads to said active surface of said second chip, wherein said second horizontal step of said stair-like leads is upward extended from said first horizontal step.