Title :
Idealized model for charged device electrostatic discharge
Author :
Greason, William D.
Author_Institution :
Fac. of Eng. Sci., Univ. of Western Ontario, London, Ont., Canada
Abstract :
An analysis is presented for a two-conductor problem in which the source conductor, a sphere with either constant charge or constant potential, approaches a ground plane. Capacitance coefficients are calculated; body potentials, energies, and charges are compared for typical geometries using the two models. In real charged device model events, the device potential and probability of discharge are a function of the charge on the device, its size, and position relative to a ground plane. Proposed test methods specify the potential of the device; the resulting charge on the device and the energy dissipated in the discharge can be lower compared to the actual event. Results are also presented which show the effect of the variation in the impedance elements of the discharge path on the peak value and rise time of the discharge current
Keywords :
capacitance; electric charge; electrostatic discharge; body potentials; capacitance coefficients; charged device electrostatic discharge; charged device model events; constant charge; constant potential; device potential; discharge current; discharge path; discharge probability; energy dissipation; ground plane; idealized model; impedance elements; peak value; rise time; source conductor; sphere; two-conductor problem; Biological system modeling; Capacitance; Conductors; Electrostatic discharge; Fault location; Humans; Industry Applications Society; Semiconductor devices; Testing; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on