Design On Single-Chip Semiconductor Bridge Integrated With Non-Ignition Circuit

Semiconductor bridge (SCB) based on microelectronic technique is considered as the most promising candidate instead of conventional hot bridge wire and it is has wide application prospects in military and civil fields, such as ammunition ignition and airbag for automobile, due to its high operation reliability, short initiating time, low initiating energy, simple process, small packaging volume and comparability with conventional digital logic circuit. After both the fundamental structure and igniting mechanism are introduced, the discussions on the effects of bridge structure, substrate material and bridge dimension on the SCB's initiating performance are followed. Then based on these choice The SCB device is simulated by TCAD. And the firing circuit and protection circuits on ESD or EMI are designed and simulated. Besides protection device are also simulated by TCAD. Furthermore some novel SCB structures and processes are discovered and some view on integration of SCB system is proposed to further improve CMOS-SCB's igniting reliability and efficiency.The main conclusions are following:1) It could decrease the cost efficiently; improve the integration of devices and functions to utilize silicon and CMOS technology.2) SCB can be protected from ESD efficiently by Schottky Barrier Diode, from high frequency by MOS capacitor.3) Verifying the capability of the integration of SCB system.A important aim of this paper is also to propose some available solutions for SCB system based on silicon CMOS through simulation.