Method of producing a contact system on the rear of a component with stacked substrates

摘要

The present invention relates to a process for making a contact point ( 8 ) on the rear surface of a component including at least one first substrate ( 10 ) with at least one active region ( 12 ) and at least one second substrate ( 20 ) for protecting the active region. In accordance with the invention, a second substrate of a non-insulating material is used and at least one through insulation trench ( 21 ) is made in it surrounding a part ( 22 ) of this substrate, said part being in contact with the active region when the first and second substrates are assembled. Application to sensor conditioning.