Multi-channel electrode array and its manufacturing method

The invention discloses a multi-channel microelectrode array and a manufacturing method thereof. The multi-channel microelectrode array and the manufacturing method thereof aim to solve the problems of an existing multi-channel microelectrode array. According to the multi-channel microelectrode array and the manufacturing method thereof, the situation of mutual interference of signals in the channels is avoided through the accurate arrangement of wire electrodes which is achieved through a plurality of micron-sized through holes which are formed inside a mold; the spacing between every two adjacent multi-channel microelectrode arrays and the number of the channels can be changed correspondingly through the through holes which are formed in the mold according to different requirements for the spacing between every two adjacent multi-channel microelectrode arrays and the number of the channels, the through holes with the minimum diameters can allow 100-micron wire electrodes to penetrate through, the minimum spacing between every two adjacent through holes can reach 250 microns, circuits of a circuit board can be adjusted correspondingly according to the change of the diameters of the wire electrodes, and then well connection of the wire electrodes is achieved. The manufacturing method of the multi-channel microelectrode array has the advantages that the complexity of the technique for manufacturing the multi-channel microelectrode array is reduced, then cost of the manufacturing technique is reduced, and arrangement accuracy of arrays is improved.