Contact and IC socket using the contact

An IC socket comprising:

• a socket body having an IC-package mounting recess and a plurality of contact-receiving chambers formed in a bottom of the IC-package mounting recess correspondingly to external contacts of an IC package;
• a plurality of contacts respectively received in the plurality of contact-receiving chambers;
• a press member that pushes an IC package, placed in the IC-package mounting recess, onto contacts received in the contact-receiving chambers;
• wherein the contact having
• a support member extending vertically and broad in width;
• a first spring portion extending obliquely upper forwardly from an upper end of the support member and having, at an apex, a first contact point where to contact with an integrated circuit package;
• a second spring portion bent from the first contact point and extending obliquely lower rearwardly, and having a first touch portion at a tip thereof;
• a third spring portion extending obliquely lower forwardly from a lower end of the support member and having, at an apex thereof, a second contact point where to contact with a printed-wiring board, thus being in contrast with the first spring portion with respect to the support member;
• and
• a fourth spring portion bent from the second contact point and extending upper rearwardly, and having at a tip a second touch portion for contacting with the first touch portion;
• wherein the second touch portion at the tip of the fourth spring portion is a flat portion and bent downward at an angle relative to the fourth spring portion.

A contact comprising:

• a support member extending vertically and broad in width;
• a first spring portion extending obliquely upper forwardly from an upper end of the support member and having, at an apex, a first contact point which contacts with an integrated circuit package;
• a second spring portion bent from the first contact point, to extend obliquely lower rearwardly and having a first touch portion at a tip thereof;
• a third spring portion extending obliquely lower forwardly from a lower end of the support member and having, at an apex thereof, a second contact point which contacts with a printed-wiring board, thus being in contrast with the first spring portion with respect to the support member;
• and
• a fourth spring portion bent from the second contact point and extending obliquely upper rearwardly, and having at a tip a second touch portion for contacting with the first touch portion;
• wherein the second touch portion is bent downward at an angle relative to the fourth spring portion and formed with a ridge portion convexed upwardly;
• and
• wherein the ridge portion contacts with the first touch portion.

An IC socket comprising:

• a socket body having an IC-package mounting recess and a plurality of contact-receiving chambers formed in a bottom of the IC-package mounting recess correspondingly to external contacts of an IC package;
• a plurality of contacts respectively received in the plurality of contact-receiving chambers;
• a press member that pushes an IC package, placed in the IC-package mounting recess, onto contacts received in the contact-receiving chambers;
• wherein the contact having
• a support member extending vertically and broad in width;
• a first spring portion extending obliquely upper forwardly from an upper end of the support member and having, at an apex, a first contact point where to contact with an integrated circuit package;
• a second spring portion bent from the first contact point and extending obliquely lower rearwardly, and having a first touch portion at a tip thereof;
• a third spring portion extending obliquely lower forwardly from a lower end of the support member and having, at an apex thereof, a second contact point where to contact with a printed-wiring board, thus being in contrast with the first spring portion with respect to the support member;
• and
• a fourth spring portion bent from the second contact point and extending upper rearwardly, and having at a tip a second touch portion for contacting with the first touch portion;
• wherein the second touch portion is bent downward at an angle relative to the fourth spring portion and formed with a ridge portion convexed upwardly;
• and
• wherein the ridge portion contacts with the first touch portion.