公开(公告)号：EP2207215A2

公开(公告)日：2010-07-14

申请号：EP09176953.9

申请日：2009-11-24

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Gris, Christian ,  Berlemont, Jean-Francois ,  Vendulet, Joachim ,  Panteny, Simon

IPC: H01L41/24

CPC classification number: H01L41/257 ,  H01L41/083 ,  H01L41/1876

Abstract: A method of poling a ferroelectric sample (2a) suitable for use in a fuel injector (5) of an internal combustion engine, the method comprising providing a ferroelectric sample (2a) having a stack of ferroelectric layers (4), wherein adjacent layers (4) are separated by internal electrodes (6a, 6b), forming a first group (6a) and a second group (6b) of electrodes; applying a multiaxial pressure to the ferroelectric sample; reducing the bonding strength between each pair of adjacent ferroelectric layers and internal electrodes; and generating a first electric field between the first (6a) and second (6b) group of electrodes to pole each ferroelectric layer (4) in a first poling direction.

Abstract translation: 一种极化适用于内燃机的燃料喷射器（5）的铁电样品（2a）的方法，所述方法包括提供具有铁电层（4）堆叠的铁电样品（2a），其中相邻层 4）由内部电极（6a，6b）隔开，形成第一组（6a）和第二组（6b）电极; 对铁电样品施加多轴压力; 降低每对相邻铁电层和内部电极之间的结合强度; 以及在第一电极组（6a）和第二电极组（6b）之间产生第一电场以在第一极化方向上为每个铁电层（4）提供极性。

公开(公告)号：EP2207215A3

公开(公告)日：2010-12-08

申请号：EP09176953.9

申请日：2009-11-24

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Gris, Christian ,  Berlemont, Jean-Francois ,  Vendulet, Joachim ,  Panteny, Simon

IPC: H01L41/24

CPC classification number: H01L41/257 ,  H01L41/083 ,  H01L41/1876

Abstract: A method of poling a ferroelectric sample (2a) suitable for use in a fuel injector (5) of an internal combustion engine, the method comprising providing a ferroelectric sample (2a) having a stack of ferroelectric layers (4), wherein adjacent layers (4) are separated by internal electrodes (6a, 6b), forming a first group (6a) and a second group (6b) of electrodes; applying a multiaxial pressure to the ferroelectric sample; reducing the bonding strength between each pair of adjacent ferroelectric layers and internal electrodes; and generating a first electric field between the first (6a) and second (6b) group of electrodes to pole each ferroelectric layer (4) in a first poling direction.