公开(公告)号：US20130342264A1

公开(公告)日：2013-12-26

申请号：US13924159

申请日：2013-06-21

Applicant: STMicroelectronics S.r.l.

Inventor： Antonello Santangelo ,  Stefania Maria Serena Privitera

IPC: H01C10/50

CPC classification number: H01C10/50 ,  H01C17/232 ,  H01C17/265 ,  H01L22/14 ,  H01L22/20 ,  H01L23/5228 ,  H01L28/20 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An integrated circuit has a circuit part and a trimmable resistor, the resistance whereof may be modified by Joule effect. The trimmable resistor has first and second connection terminals coupled to the circuit part, and an intermediate terminal that divides the trimmable resistor into two portions. The first and the second connection terminals and the intermediate terminal are coupled to respective pads configured to receive electrical quantities designed to cause, in use, a respective trimming current flow in each portion. In this way, a substantially zero voltage drop is maintained between the first and second connection terminals while current is flowing in the resistor to change an electrical characteristic of the resistor, such as resistance or thermal coefficient.

Abstract translation: 集成电路具有电路部分和可调整电阻，其电阻可以通过焦耳效应进行修改。 可调整电阻器具有耦合到电路部分的第一和第二连接端子以及将可调整电阻器分为两部分的中间端子。 第一和第二连接端子和中间端子耦合到相应的焊盘，其被配置成接收设计成在使用中导致每个部分中的相应修整电流的电量。 以这种方式，在第一和第二连接端子之间保持基本为零的电压降，同时电流在电阻器中流动以改变电阻器的电特性，例如电阻或热系数。

公开(公告)号：US09429967B2

公开(公告)日：2016-08-30

申请号：US14617984

申请日：2015-02-10

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Stefania Maria Serena Privitera ,  Antonello Santangelo

IPC: G05F1/46 ,  H01C7/00 ,  H01C7/06 ,  H01C17/26 ,  H01L21/66 ,  H01L49/02 ,  H01L45/00

CPC classification number: G05F1/463 ,  H01C7/006 ,  H01C7/06 ,  H01C17/267 ,  H01L22/14 ,  H01L22/20 ,  H01L22/26 ,  H01L28/24 ,  H01L45/06 ,  H01L45/1226 ,  H01L45/144 ,  H01L45/16 ,  Y10T29/49082

Abstract: An embodiment of an electrically trimmable electronic device, wherein a resistor of electrically modifiable material is formed by a first generally strip-shaped portion and by a second generally strip-shaped portion, which extend transversely with respect to one another and are in direct electrical contact in a crossing area. The first and second portions have respective ends connected to own contact regions, coupled to a current pulse source and are made of the same material or of the same composition of materials starting from a same resistive layer of the material having electrically modifiable resistivity, for example, a phase-change material, such as a Ge—Sb—Te alloy, or polycrystalline silicon, or a metal material used for thin-film resistors. The trimming is performed by supplying a trimming current to the second portion so as to heat the crossing area and modify the resistivity thereof, without flowing longitudinally in the first portion.

Abstract translation: 电可调电子设备的实施例，其中电可修改材料的电阻器由第一大致条形部分和第二大致条形部分形成，第二大致条形部分相对于彼此横向延伸并且直接电接触 在交叉口。 第一和第二部分具有连接到自身接触区域的相应末端，该接触区域与电流脉冲源相连，并且由相同的材料制成，或者由具有电可修改电阻率的材料的相同电阻层开始的材料组成相同。 ，诸如Ge-Sb-Te合金或多晶硅的相变材料或用于薄膜电阻器的金属材料。 通过向第二部分提供修整电流以加热交叉区域并修改其电阻率而不在第一部分中纵向流动来进行修整。

公开(公告)号：US09230720B2

公开(公告)日：2016-01-05

申请号：US13924159

申请日：2013-06-21

Applicant: STMicroelectronics S.r.l.

Inventor： Antonello Santangelo ,  Stefania Maria Serena Privitera

IPC: H03L5/00 ,  H01C10/50 ,  H01C17/232 ,  H01C17/26 ,  H01L49/02 ,  H01L23/522 ,  H01L21/66

CPC classification number: H01C10/50 ,  H01C17/232 ,  H01C17/265 ,  H01L22/14 ,  H01L22/20 ,  H01L23/5228 ,  H01L28/20 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An integrated circuit has a circuit part and a trimmable resistor, the resistance whereof may be modified by Joule effect. The trimmable resistor has first and second connection terminals coupled to the circuit part, and an intermediate terminal that divides the trimmable resistor into two portions. The first and the second connection terminals and the intermediate terminal are coupled to respective pads configured to receive electrical quantities designed to cause, in use, a respective trimming current flow in each portion. In this way, a substantially zero voltage drop is maintained between the first and second connection terminals while current is flowing in the resistor to change an electrical characteristic of the resistor, such as resistance or thermal coefficient.

Abstract translation: 集成电路具有电路部分和可调整电阻，其电阻可以通过焦耳效应进行修改。 可调整电阻器具有耦合到电路部分的第一和第二连接端子以及将可调整电阻器分为两部分的中间端子。 第一和第二连接端子和中间端子耦合到相应的焊盘，其被配置成接收设计成在使用中导致每个部分中的相应修整电流的电量。 以这种方式，在第一和第二连接端子之间保持基本为零的电压降，同时电流在电阻器中流动以改变电阻器的电特性，例如电阻或热系数。