Patent ID: 6673656
Filing Date: 2004-01-06
Classification: H01L

Abstract:
A method of manufacturing a substrate for a semiconductor device, said method comprising the steps of:providing a printed circuit board having opposing upper and lower surfaces and a slot defined therein, the lower surface of the printed circuit board being, provided with a plurality of solder loads and a plurality of chip connection pads electrically connected to the solder pads, respectively, the lower surface of the printed circuit board being covered by a solder mask in a manner that the solder pads and the chip connection pads are exposed through the solder mask; masking the chip connection pads; and forming an organic surface protection on the solder mask and around the slot of the substrate; wherein the masking step includes the step of attaching a protective tape to the lower surface of the printed circuit board so as to cover the chip connection pads.