BIOSENSOR PRODUCTION METHOD AND BIOSENSOR

• Main Authors: SANO YASUSHI, SEKIOKA NAOYUKI, TAZAKI TOMOYUKI, MURAKAMI HONOKA, TOJO AKIKO
• Format: Patent
• Language: English; Japanese
• Published: 04.02.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a method for producing a biosensor having a micro electrode in which an exposed area of an electrode is extremely small, using a screen printing method, and a biosensor comprising the micro electrode having a resist film in which bleeding hardly occurs on an opening produced by the same method.SOLUTION: A method for producing a biosensor comprises the steps for: forming an electrode part on an insulation substrate; and covering the insulation substrate with a resist film while leaving a prescribed exposed region so that the electrode part is exposed by a constant area. The step for covering an insulation substrate 1 with a resist film 7 includes the steps for: screen printing an insulation paste so as to surround a periphery of an exposed region R for exposing an electrode part 3 with a border insulation film 11 with a prescribed line width; and screen printing the insulation paste to an external part of the border insulation film so that the insulation paste overlaps the border insulation film partially for forming a resist film.SELECTED DRAWING: Figure 1 【課題】電極の露出面積が非常に小さい微小電極を有するバイオセンサを、スクリーン印刷法を用いて製造する方法及び当該方法によって製造される開口部における滲みが殆どないレジスト膜を有する微小電極を備えたバイオセンサを提供する。【解決手段】絶縁性基板上に電極部を形成するステップ、及び前記電極部が一定面積露出するように、所定の露出領域を残して前記絶縁性基板をレジスト膜で覆うステップを有するバイオセンサ製造方法において、前記絶縁性基板１をレジスト膜７で覆うステップが、電極部３を露出させるための露出領域Ｒの外周を所定の線幅の縁取絶縁膜１１で囲むように絶縁性ペーストをスクリーン印刷するステップと、少なくとも、前記縁取絶縁膜と一部分が重なるように前記縁取絶縁膜の外側に絶縁性ペーストをスクリーン印刷してレジスト膜を形成するステップとから成る。【選択図】図１