公开(公告)号：DE10342305A1

公开(公告)日：2005-04-14

申请号：DE10342305

申请日：2003-09-12

Applicant: INFINEON TECHNOLOGIES AG

Inventor： FISCHER HELMUT ,  LINDOLF JUERGEN ,  SOMMER MICHAEL B

IPC: H01L23/60 ,  H01L27/02 ,  H02H9/00 ,  H02H9/02

Abstract: ESD protection (100) limits voltage heterodyned to useful voltage to permissible level and comprises numerous series-connected diodes (106), which are poled in flow direction, related to useful voltage, with sum of activating voltages of diodes corresponding to permissible voltage. Preferably permissible voltage is of same polarity as useful voltage. Typically number of series-connected diodes is so chosen that permissible voltage is less than blocking voltage of individual diode.