[en] The L3 detector, located at the LEP storage ring at CERN (European Center for Nuclear Research), has recently installed a silicon microvertex detector (SMD). The purpose of the SMD is to enhance the tracking capabilities of L3 and to provide increased vertex measurement precision for tagging b-jets in the search for the Higgs boson, when LEP doubles its center of mass energy for the LEP 200 running. The subject of this article is the fabrication and testing of the front-end electronics for the SMD. The article is organized into several sections. The first section describes the SMD, the second section discusses the front-end electronics, the third section presents the testing procedures and the results of the tests