Patent ID: 8202684
Filing Date: 2012-06-19
Classification: G01R

Abstract:
1. A method for manufacturing a probe sheet comprising a probe sheet main body having a flexible insulating synthetic resin film and conductive paths supported by said synthetic resin film and a plurality of contactors formed to be protruded from one surface of said probe sheet main body and connected to said conductive paths, comprising: a first step of forming photoresist taking the form of each probe tip and each arm portion continuing into said probe tip on a base table having formed therein a recess for said probe tip of each contactor with use of a photolithographic technique and forming said probe tip and said arm portion of said contactor by depositing a metal material in said recess formed in said photoresist; a second step of, after removal of said photoresist, forming a sacrificial layer on the end portion of said arm portion and forming a first flexible synthetic resin layer for said probe sheet main body on said sacrificial layer; a third step of forming an opening reaching said arm portion via said flexible synthetic resin layer and said sacrificial layer; a fourth step of forming a base portion continuing into said arm portion of said contactor by depositing a metal material in said opening; and a fifth step of forming on said flexible synthetic resin layer photoresist taking the form of a conductive path passing on said base portion formed in said opening with use of a photolithographic technique and forming on said synthetic resin layer said conductive path coupled with said base portion by depositing a metal material in a recess formed in said photoresist, wherein said contactors are separated from said base table integrally with said probe sheet main body.