Patent ID: 6867500

Claim:
A multi-chip module, comprising: a substrate including: a first region; a second region containing at least a portion of the first region; a third region containing at least a portion of the second region; and contact areas, including first contact areas located external to the first region and within the second region, second contact areas located external to the second region and within the third region, and third contact areas located external to the third region; a first semiconductor device positioned over the first region of the substrate without extending beyond the first region; a second semiconductor device positioned at least partially over the first semiconductor device and over the second region of the substrate; a spacer contacting both a surface of the first semiconductor device and an opposed surface of the second semiconductor device; and intermediate conductive elements electrically connecting bond pads of the first semiconductor device with corresponding contact areas of the first contact areas and bond pads of the second semiconductor device with corresponding contact areas of the second contact areas.