Non-Destructive Semiconductor Chip Bonding and Chip Removal.
Abstract
An arrangement and method for mounting IC chips or dice onto substrates comprises the use of (a pair of) electrically conductive electrodes placed on a substrate below the location where the IC chip is to be mounted. The electrodes are separated a distance that is approximately equal to the width of the IC chip to be mounted. A resistor material is disposed between the electrodes, or may even be integral therewith. The IC chip is placed above the resistor material, it is insulated from the latter, and it abuts a layer of bonding material (e.g., eutectic solder or epoxy) on its underside. A voltage applied to the electrodes heats the resistor material which, in turn melts or cures the bonding material to thereby secure the IC chip in place on the substrate. (Patent Application)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 09, 1987
- Accession Number
- ADD012662
Entities
People
- Francis J. Murdoch
Organizations
- United States Army