| abstract |
An article for tape-automated bonding of integrated circuit microchips comprises a carrier sheet (22) (Fig. 2) carrying conductive tracks (23) with a tubular metal formation (21) passing through the sheet at the end of each track for connection to a microchip (24). The tubular formations tend to accommodate irregularities in the chip and may contain solder or other metal having a lower melting point than the tubular formation to effect bonding. |