Patent ID: 6973717
Filing Date: 2005-12-13
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. A method for producing a semiconductor device in a chip format, which comprises the steps of: providing chips; placing electrical connection pads on the chips; applying at least one first insulating layer to at least one surface of the chips such that the electrical connection pads are left at least partially uncovered by the first insulating layer; producing interconnects on the at least one first insulating layer, the interconnects leading to base regions of external connection elements; applying a second insulating layer on the interconnects and on the at least one first insulating layer, the second insulating layer being at least four times thicker than the first insulating layer; forming openings in the second insulating layer above the base regions; introducing solder paste into the openings; placing metallized small plastic balls onto the solder paste in a region of a free end of each of the openings; and remelting the solder paste to form a long cylinder with a metallized small plastic ball at the end thereof.