Electrostatic Discharge (ESD) Mechanism for Battery Charge Contact Failure in Cordless Phones
28 September 1999
A comparison of the SEM EDX spectra for the metal charge contacts from the field-returned cordless phones and for the laboratory samples of fixed gap discharge (FGD) tests reveals similar chemical elements, suggesting that Electrostatic Discharge (ESD) is the possible source for cordless phone field failure.