Abstract: A probe for making electrical connections to the legs of an already mounted integrated circuit carries rows of tapered wedges. The wedges within a row are spaced apart by an amount that corresponds to the width of the IC's legs. For n-many legs on a side of the IC there are n+1 corresponding wedges, which then have n-many intervening spaces. As the positioned probe is pressed down the spaces between the wedges receive the legs of the IC, and wedges become wedged between the IC's legs. Each wedge has left and right conductive surfaces separated by an insulator. Each leg of the IC has a wedge to its left and a wedge to its right. Within the probe the right-hand conductive surface of the wedge to the left of a leg, and the left-hand conductive surface of the wedge to the right of that leg, are electrically connected together. Thus, the probe makes electrical contact to each leg in two places. The tapered wedges are of Ni- and Au-plated BeCu separated by acrylic adhesive and Kapton.

Abstract: A probe for making electrical connections to the legs of an already mounted integrated circuit carries rows of tapered wedges. The wedges within a row are spaced apart by an amount that corresponds to the width of the IC's legs. For n-many legs on a side of the IC there are n+1 corresponding wedges, which then have n-many intervening spaces. As the positioned probe is pressed down the spaces between the wedges receive the legs of the IC, and wedges become wedged between the IC's legs. Each wedge has left and right conductive surfaces separated by an insulator. Each leg of the IC has a wedge to its left and a wedge to its right. Within the probe the right-hand conductive surface of the wedge to the left of a leg, and the left-hand conductive surface of the wedge to the right of that leg, are electrically connected together. Thus, the probe makes electrical contact to each leg in two places. The tapered wedges are of Ni- and Au-plated BeCu separated by acrylic adhesive and Kapton.