Preparation technology of biochemical test piece
A technology for preparation process and test piece, which is applied in the field of biochemical test piece preparation process, can solve the problems of poor batch consistency of silk screen printing method, reduced adhesion of gold coating, unrecyclable gold coating, etc., to improve product yield and Measuring accuracy, preventing measurement errors, and improving long-term stability
Inactive Publication Date: 2016-11-16
英太格电子科技(苏州)有限公司
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Problems solved by technology
[0002] At present, the accuracy of biochemical test strips generally used by screen printing method can only reach 20%, which is difficult to meet the 15% accuracy requirement of ISO15197:2013 specification, and the batch consistency of screen printing method is not good, and the stability of the product for a long time not good too
In addition, there are also manufacturers who use gold plating as the conductive layer and reaction layer electrodes for high-end biochemical test strips. The test strips can meet the accuracy requirements and have high stability and consistency. However, the target material of gold electrodes is extremely expensive and not It is easy to etch, and laser engraving is generally used to engrave lines. The production efficiency is low, and the gold coating cannot be recycled. Others also use the Lift-off process. Although some gold can be recycled, the substrate after filming, UV light, and stripping, the surface After gold sputtering, the adhesion of the gold coating will be greatly reduced
Method used
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Embodiment 1
[0033] A preparation process of a biochemical test piece, comprising the steps of:
[0034] like figure 2 Shown:
[0035] S1. The preparation process of the metal electrode layer pattern:
[0036] S11: The surface of the raw material of the biochemical test sheet is pasted with a dry film;
[0037] S12: exposing and developing the dry film, and peeling off the unexposed dry film;
[0038] S13: using an etchant to etch a wire pattern on the metal electrode layer;
[0039] S14: peeling off the remaining dry film and cleaning;
[0040] like image 3 Shown:
[0041] S2, the preparation process of the metal oxide reaction layer pattern
[0042] S21: pasting a dry film on the surface of the metal electrode layer;
[0043] S22: exposing and developing the dry film, and peeling off the unexposed dry film;
[0044] S23: using an etchant to etch a reaction region pattern on the metal oxide reaction layer;
[0045] S24: peeling off the remaining dry film and cleaning;
[0046...
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Abstract
The invention discloses a preparation technology of a biochemical test piece. A metal electrode wire layer, a metal oxide reaction layer and a middle separating layer of the biochemical test piece are prepared through a yellow light etching manufacturing procedure in the whole process. According to the preparation technology of the biochemical test piece, the high-precision requirement can be met on the low cost condition; in addition, the middle separating layer capable of preventing test liquid from being dispersed is arranged, and therefore the reaction liquid amount can be more precisely controlled; a wire is made of a low-cost metal electrode, and therefore the cost of a gold electrode is reduced; a reaction area material adopts a stable metal oxide electrode, therefore, the long-term stability of the electrode can be improved, and the phenomenon that measurement is inaccurate due to the fact that variation is generated along with time can occur.
Description
technical field [0001] The technical field of biochemical testing of the present invention, in particular relates to a preparation process of a biochemical test piece. Background technique [0002] At present, the accuracy of biochemical test strips generally used by screen printing method can only reach 20%, which is difficult to meet the 15% accuracy requirement of ISO15197:2013 specification, and the batch consistency of screen printing method is not good, and the stability of the product for a long time not good too. In addition, there are also manufacturers who use gold plating as the conductive layer and reaction layer electrodes for high-end biochemical test strips. The test strips can meet the accuracy requirements and have high stability and consistency. However, the target material of gold electrodes is extremely expensive and not It is easy to etch, and laser engraving is generally used to engrave lines. The production efficiency is low, and the gold coating cann...
Claims
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IPC IPC(8): G01N27/416G03F7/00
CPCG01N27/416G03F7/0035
Inventor 陈泓均
Owner 英太格电子科技(苏州)有限公司