Patent ID: 7727861

Claim:
A method for manufacturing a chip module, whereby chips are contacted on a metal substrate with flip-chip bonding methods, and whereby both a front side and a rear side of the metal substrate are coated with an etching resist, the front side being the side on which the chips are being contacted, wherein a contacting zone is defined for each chip on the front side, the size of the contacting zone being at least equal to the size of a semiconductor chip plus expected positioning errors of the chip, and said zone is divided at least partially by a plurality of substantially parallel structure lines formed by an absence of the etching resist on the front side of the metal substrate, wherein the semiconductor chip comprises at least two contact bumps and is contacted on said zone such that the at least two contact bumps are separated from one another by at least one of said structure lines, wherein the chip is underfilled after the contacting, wherein the exact position of the chip after contacting on the contacting zone is recorded, and an effective separating structure line is selected from the at least one of said structure lines that separate the at least two contact bumps, wherein a chip-specific structure line is subsequently formed through the etching resist of the rear side congruently to the effective separating structure line on the front side, wherein a through-etching is produced by etching between the chip-specific structure line on the rear side and the congruent effective separating structure line on the front side, and wherein a module carrying the chip is separated from the substrate.