An experimental method allowing quantifying and localizing failed cells of an EEPROM CAST after a retention test.

A Modelisation of the temperature dependence of the Fowler–Nordheim current in EEPROM memories

“…Specially the injection current and the associated modeling are of a crucial interest to evaluate its performance and predict the cell behavior [2]. Classically high temperature studies are applied to reliability analysis [7]. As a matter of fact, new applications, such as automotive, imply new product requirements.…”

An evaluation of the extrinsic cells number in a memory array using cross-correlation products and deconvolution: an instance of a microelectronics experimental inverse problem

“…In this case of moderate stress, measurements on isolated cells show that the transcharacteristic shape (particularly the under threshold slope) is not significantly affected [13]. So, in the model described in the previous section, the same i 0 (v) shape can be used for both virgin and stressed (cycled) CAST.…”

“…The latter could be found by different inverse resolutions of Gaussian deconvolution, for instance by extraction of statistical parameters [7,9] or by a Gaussian deconvolution procedure as classically done in a medical device [10,11]. In order to avoid the extraction of the intrinsic part of the curve, we have recently proposed two non-computing methods to estimate the number of extrinsic cells in an EEPROM CAST [12,13]. The first method which is experimental and visual is based on the EMMI technique [14].…”

“…Deconvoluting relation (12), (13) or (14) gives the quantities n c , n v and the difference D n ðvÞ ¼ n c ðvÞ À n v ðvÞ:…”

A new non-volatile memory architecture embedding microbatteries to improve data retention criterion

“…As previously detailed in Eq. (1), charge loss phenomenon is directly linked to electrons leaking from the floating gate, decreasing the total number of stored electrons and so inducing a progressive data loss [6][7][8]. In order to improve this reliability criterion, two major ways can be followed.…”