Functional Neuromuscular Stimulation
 
 
The microstimulator is fabricated in three main steps. The first step involves preparing the electrodes. A glass bead is melted to the Ta stem; a glass washer is melted to the Ir stem and then to the glass capillary tube. This is necessary to protect the IC chip from heat during the glass-to-metal sealing process, whereas, the lesser heat (approximately 80° C at 2 mm from where the heat is being applied) conducted during the glass-to-glass sealing is safe for the chip. The second step involves assembling the various internal components and attaching them to the Ta-glass bead end. The final step involves inserting the electronic subassembly into the Ir-glass capillary section and making a final hermetic seal at the Ta-glass bead to glass capillary junction [1].
 
Fabrication
 
 
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Created by Alison Vass    |    BME 240    |    June 9, 2006mailto:avass@uci.edu?subject=I%20looked%20at%20your%20siteshapeimage_13_link_0