Patent ID: 7223639

Claim:
A method of producing a panel with a plurality of electronic components each having a semiconductor chip, the method which comprises the following method steps: providing a substrate formed with plastic and loaded and wired with a plurality of semiconductors; applying a plastic package molding compound to one side of the substrate, thereby embedding the semiconductor chips in the plastic package molding compound and causing a bowing of the substrate and the plastic package molding compound, forming a bowed panel; positioning solder balls on the bowed panel; melt-soldering the solder balls on the panel, thereby leveling the panel to form a leveled panel; cooling down the leveled panel and cooling below the glass transition temperature of the plastic package molding compound and thereafter cooling, below a glass transition temperature of the plastic of the substrate; and after leveling during the melt-soldering of the solder balls and after solidification of the plastic molding compounds, initially pre-crosslinking or curing the plastic molding compounds and subsequently crosslinking or curing the plastic molding compounds in two temperature stages below a lowest glass transition temperature of the plastic molding compounds.