Method of positioning an anisotropic conductive connector, method of positioning the anisotropic conductive connector and a circuit board for inspection, anisotropic conductive connector, and probe card

In positioning a flexible anisotropic conductive sheet to an object, a method for positioning an anisotropic conductive sheet which method comprises the steps of:

• forming a semi-transparent protrusion on the anisotropic conductive sheet and also
• forming a through-hole on the object,
• identifying the through-hole through the semi-transparent protrusion formed on the anisotropic conductive sheet and thereby
• positioning the anisotropic conductive sheet to the object.

In positioning a flexible anisotropic conductive sheet to an object, a method for positioning an anisotropic conductive sheet which method comprises the steps of:

• forming at least two semi-transparent protrusions on the anisotropic conductive sheet and also
• forming at least one marking and at least one through-hole on the object,
• identifying the marking through the one semi-transparent protrusion formed on the anisotropic conductive sheet and also identifying the through-hole through the other one semi-transparent protrusion and thereby
• positioning the anisotropic conductive sheet to the object.

A method for positioning an anisotropic conductive connecter obtainable by disposing a first anisotropic conductive sheet, a center substrate and a second anisotropic conductive sheet in this order, which method comprises the steps of:

• forming a semi-transparent protrusion on each of the first anisotropic conductive sheet and the second anisotropic conductive sheet,
• forming a marking on each of the upper and lower surfaces of the center substrate,
• identifying the markings formed on the center substrate through the semi-transparent protrusions formed on the first and second anisotropic conductive sheets from the both sides by a detecting means disposed on the first anisotropic conductive sheet side and a detecting means disposed on the second anisotropic conductive sheet side, and thereby
• conducting positioning of the first anisotropic conductive sheet, the center substrate and the second anisotropic conductive sheet.

In positioning, on a circuit board for inspection, a rectangular anisotropic conductive connector having a three-layered structure obtainable by aligning a first anisotropic conductive sheet having at least two semi-transparent protrusions and at least one through-hole formed on each side of four sides of the rectangular frame-like form, a second anisotropic conductive sheet having at least two semi-transparent protrusions and at least one through-hole formed on each side of four sides of the rectangular frame-like form, and a center substrate having at least two through-holes formed on each side of four sides of the rectangular frame-like form and at least one marking formed on each of the upper and lower surfaces, and thereby making one piece,

• a method for positioning an anisotropic conductive connector and a circuit board for inspection, which method comprises the steps of:
• forming at least two markings on each side of four sides of a rectangular frame-like form of the circuit board for inspection,
• aligning the one semi-transparent protrusion of either of the first anisotropic conductive sheet and the second anisotropic conductive sheet, which protrusion corresponds to the one through-hole on one side of the four sides of the center substrate, to the one marking of the circuit board for inspection, and further,
• aligning the other semi-transparent protrusion of either of the first anisotropic conductive sheet and the second anisotropic conductive sheet, which protrusion corresponds to the other one through-hole on one side of the four sides of the center substrate, to the other one marking of the circuit board for inspection and thereby
• conducting positioning on each side of the four sides respectively.