Patent ID: 7374970

Claim:
A method of manufacturing semiconductor devices, comprising the steps of: (a) preparing a semiconductor wafer provided with a plurality of semiconductor device forming areas having an organic film covering a wiring layer formed over each main surface and a plurality of ball electrodes, which are external terminals, respectively arranged in a plurality of opening portions in said organic film; (b) forming a plurality of semiconductor devices by dividing said semiconductor wafer by dicing according to said semiconductor device formation areas; and (c) inspecting, after said step (b), said semiconductor devices in a state of said plurality of ball electrodes of said semiconductor devices being supported, wherein a socket for inspection is prepared which includes: insulative sheet members capable of supporting said organic film of said semiconductor device; a plurality of terminal portions capable of respectively coming into contact with said ball electrodes of said semiconductor device; and a conductor portion provided with wiring for connection to said terminal portions, and which is provided with the plurality of terminal portions arranged in each of said plurality of opening portions in said sheet members, and wherein, at said step (c), a burn-in test is conducted by bringing said ball electrodes of said semiconductor device into contact with said terminal portions, and so fitting said semiconductor device into said socket for inspection that said organic film of said semiconductor device be supported by said sheet member.