Patent ID: 8097475

Claim:
A method of production of a contact structure having a contactor and a contact board, the method comprising: (a) preparing a SOI wafer; (b) forming a step of a base part of the contactor; (c) forming a support part of the contactor; (d) covering a top surface of the support part with a conductive material so as to form a conductive part of the contactor; and (e) mounting the contactor on the contact board so that corner parts of the step of the base part contact a surface of the contact board, wherein the (b) includes: (b-1) forming a first mask pattern on a bottom side Si layer of the SOI wafer; and (b-2) etching the bottom side Si layer of the SOI wafer so as to form the step of the base part of the contactor, and the (c) includes: (c-1) forming a second mask pattern on a top surface of the SOI wafer; (c-2) etching the top surface of the SOI wafer; (c-3) forming a third mask pattern on the bottom side Si layer of the SOI wafer; (c-4) etching the bottom side Si layer of the SOI wafer; (c-5) and removing a SiO 2 layer of the SOI wafer so as to form the support part of the contactor.