Semiconductor device fabricating method and fabricating apparatus
View Patent ↗Respective attracting openings of a bonding head are disposed so as to avoid joining regions at which bump electrodes (obverse electrodes) of a semiconductor chip are joined with bump electrodes of a package substrate. Bump electrodes (reverse electrodes) that are connected to the bump electrodes are provided at a reverse side of the semiconductor chip at positions opposing the bump electrodes. Because the attracting openings do not overlap the joining regions, the bump electrodes (reverse electrodes) are not suctioned at the joining regions.
1. A method of fabricating a semiconductor device by mounting, on a substrate, a semiconductor chip that has obverse electrodes at an obverse side, and reverse electrodes at a reverse side so as to oppose the obverse electrodes and electrically connected to the obverse electrodes, the method comprising:
selecting a plurality of attraction regions, at which a holding member attracts the semiconductor chip, the plurality of attraction regions being on the reverse side of the semiconductor chip, each attraction region being free of the reverse electrodes so that there are no reverse electrodes in any of the attraction regions;
holding the semiconductor chip from the reverse side by causing the holding member to attract the plurality of attraction regions; and
joining the obverse electrodes and electrodes of the substrate by placing, on the substrate, the held semiconductor chip.
2. The method of claim 1 , wherein the joining of obverse electrodes of the semiconductor chip and electrodes of the substrate includes:
joining the semiconductor chip and the substrate by moving the holding member and making positions of the obverse electrodes of the semiconductor chip that is held and positions of the electrodes of the substrate coincide.
3. The method of claim 1 , wherein the plurality of attraction regions are attraction regions that are circular, rectangular, or strip-shaped.
4. The method of claim 1 , wherein the plurality of attraction regions are strip-shaped attraction regions, and portions of or entireties of the strip-shaped attraction regions are connected together.
5. The method of claim 1 , wherein holding the semiconductor chip includes the holding member sucking the semiconductor chip at the attraction regions such that none of the reverse electrodes are sucked by the holding member.
6. A method of fabricating a semiconductor device by forming a semiconductor chip that has obverse electrodes at an obverse side, and reverse electrodes at a reverse side so as to oppose the obverse electrodes and electrically connected to the obverse electrodes, and mounting the semiconductor chip on a substrate, the method comprising:
forming reverse electrodes, that are connected to obverse electrodes of the semiconductor chip that are to be joined to electrodes of the substrate, at regions of the reverse side of a semiconductor chip such that each region does not include any of a plurality of attraction regions on the reverse side, at which a holding member, that holds the semiconductor chip from the reverse side, is to attract;
holding the semiconductor chip from the reverse side by causing the holding member to attract the plurality of attraction regions; and
with the semiconductor chip being held by the holding member from the reverse side, joining the semiconductor chip and the substrate, including moving the holding member so as to make positions of the obverse electrodes and positions of electrodes of the substrate coincide.
7. The method of claim 6 , wherein the plurality of attraction regions are attraction regions that are circular, rectangular, or strip-shaped.
8. The method of claim 6 , wherein the plurality of attraction regions are strip-shaped attraction regions, and portions of or entireties of the strip-shaped attraction regions are connected together.
9. The method of claim 6 , wherein holding the semiconductor chip includes the holding member sucking the semiconductor chip at the attraction regions such that none of the reverse electrodes are sucked by the holding member.