Patent ID: 7816931

Claim:
A method of producing a contact for electrical test, said contact comprising a contact body having at least an arm region extending in the right-left direction, and a tip region extending downward from the front end portion of said arm region, wherein said tip region includes: a pedestal portion integrally continuous to the lower end portion on the front end side of said arm region; and a contact for electrical test projecting downward from the underside of said pedestal portion and having a contact portion with a tip to be brought into contact with an electrode of a device under test at a lower end, said method comprising: a first process for forming on a base member a first photoresist having a first recess formed by inclination exposure and development and forming a sacrifice layer shaped like the surface of a contact portion of a contact within said first recess; a second process for forming on said base member a second photoresist having a second recess after removing said first photoresist, and forming said contact portion by depositing within said second recess a first conductive material having higher toughness than said pedestal portion; a third process for forming on said base member a third photoresist having a third recess formed by inclination exposure and development after removing said second photoresist, and depositing within said third recess a second conductive material having higher toughness than said first conductive material, thereby forming said pedestal portion within said third recess; and a fourth process for forming on said base member a fourth photoresist having a fourth recess after removing said third photoresist, and depositing said second conductive material within said fourth recess, thereby forming said contact body within said fourth recess.