CONNECTION STRUCTURE BETWEEN CIRCUIT SUBSTRATES

摘要

PURPOSE:To make it possible to connect with high reliability two circuit substrates with an anisotropic conductive sheet by attaching projected members to the outside of an external connection electrode at the outer end of one substrate. CONSTITUTION:Face-to-face projected members 4a and 4b are attached to the outside of an external connection electrode 2a at the outer end of a circuit substrate 1a. The members 4a and 4b are preferably made of the same material as the electrodes 2a and 2b or substrates 1a and 1b. That is, a material which can be fixed on the substrates 1a and 1b and withstands a temperature for thermocompression bonding of an anisotropic conductive sheet 3 is acceptable. The members 4a and 4b generate the maximum shearing stress therein and suppress shearing stress in the electrodes 2a and 2b. Therefore, the substrates 1a and 1b are connected with high reliability with the sheet 3.