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Apparatus for temperature and current leakage measurement in chip, has linear outlet, which varies with temperature, where apparatus has current inverter and electronic module that digitizes current inverterCM Patents

Índice de la ficha

Updated at
24/07/2026
Numero publicacion
EP.2175288.A1
Fecha publicacion
14/04/2010
Numero solicitud
EP20080805308
Fecha presentacion
07/07/2008

En detalle

Resumen

The invention relates to an apparatus for measuring chip leakage current and temperature, having an output that varies linearly with temperature. The apparatus includes a leakage inverter and an electronic module which digitises and linearises the nonlinear output of the leakage inverter. The provision of a linear response reduces the requirements in terms of data interconnection and storage, as well as facilitating the digital representation of same. The apparatus can be used to measure temperature variations inside a chip and to measure leakage current variations, which also involves the measurement of static power variations inside a chip.

Reivindicaciones

1. Device for measuring temperature and leakage current in a chip characterized in that it comprises a leakage inverter, which provides a signal, the commutation time of which ,tcon, in a single direction is directly proportional to the leakage current of one of the devices p and n forming it; and one or more electronic modules which digitalize tcon or a time proportional to it, and which apply a mathematical transformation which produces a linear transfer function of the time digitalized with the temperature. 2. Device for measuring temperature and leakage current in a chip, according to claim 1, characterized in that for the digitalization it uses a counter which counts the number of clock cycles of tcon or a time proportional to it; and which for the mathematical transformation which produces a linear transfer function of the time digitalized with the temperature an electronic module is used which carries out the logarithm operation on the counter output. 3. Device for measuring temperature and leakage current in a chip, according to claim 1, characterized in that a single electronic module digitalizes and linearizes, module which consists of a logarithmic counter which carries out a logarithmic count on tcon or a time proportional to it.

Etiquetas

Inventores
Ituero Herrero PabloAyala Rodrigo Jose LuisLopez Vallejo Marisa
Solicitantes
Universidad Politécnica de MadridItuero Herrero PabloAyala Rodrigo Jose LuisLopez Vallejo Marisa
Clasificacion ipc
G01R 31/ 30 A I
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