公开(公告)号：US20120286848A1

公开(公告)日：2012-11-15

申请号：US13468355

申请日：2012-05-10

Applicant: Giuseppe SCILLA ,  Francesco Distefano

Inventor： Giuseppe SCILLA ,  Francesco Distefano

IPC: H01H37/76

CPC classification number: H01L27/0629 ,  H01C17/22

Abstract: The trimming circuit includes a plurality of trimmable resistances that may be coupled among them, each resistance being connected in parallel to a respective fuse. The trimming circuit allows burning any number of fuses according to a fixed trimming sequence using only one or two dedicated pins because it includes an input diode-connected transistor and a plurality of trimming transistors of different sectional area, each connected to force current throughout a respective one of the shunt fuses and coupled to the input diode-connected transistor such to mirror the current flowing therethrough. The fuses of the trimming circuit may be burnt by applying a trimming voltage to the diode-connected input transistor with a voltage generator connected between a dedicated pin of the circuit and a terminal at a reference potential, such to force a current therethrough as long as the mirrored currents flowing throughout the fuses burn them.

Abstract translation: 修整电路包括可以在它们之间耦合的多个可调节电阻，每个电阻并联连接到相应的保险丝。 修整电路允许使用仅一个或两个专用引脚根据固定的修整顺序烧制任何数量的保险丝，因为它包括输入二极管连接的晶体管和多个不同截面面积的修整晶体管，每个都与各自的 分流熔丝之一并且耦合到输入二极管连接的晶体管，以反射流过其中的电流。 修整电路的熔丝可以通过在连接在电路的专用引脚和参考电位的端子之间的电压发生器对二极管连接的输入晶体管施加修整电压而被烧，从而只要 在整个保险丝中流动的镜像电流会烧毁它们。

公开(公告)号：US08525579B2

公开(公告)日：2013-09-03

申请号：US13470760

申请日：2012-05-14

Applicant: Giuseppe Scilla ,  Francesco Distefano

Inventor： Giuseppe Scilla ,  Francesco Distefano

IPC: H01H37/76

CPC classification number: H03H11/24 ,  G11C17/18 ,  H01L22/22 ,  H01L22/32 ,  H01L23/345 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An electronic trimming circuit carries out a trimming operation on portions of an integrated device. The circuit includes N trimmable interconnected resistances, each connected in parallel to a respective shunt fuse. N trimming transistors are each connected to a respective one of the shunt fuses to force therethrough substantially the whole current flowing in the respective trimming transistor. N bias networks are each functionally connected to a control terminal of a respective one of the trimming transistors to directly bias an active junction thereof. An externally driven heating device is thermally coupled with the active junctions of the trimming transistors adapted to raise the temperature thereof.

Abstract translation: 电子修整电路对集成器件的部分进行修整操作。 该电路包括N个可修剪的互连电阻，每个电阻并联连接到相应的分流保险丝。 N个微调晶体管各自连接到分流熔丝中的相应一个，以迫使基本上流过各个微调晶体管的整个电流。 N个偏置网络各自功能地连接到相应一个修整晶体管的控制端子，以直接偏置其有源接点。 外部驱动的加热装置与适于升高其温度的修整晶体管的有源结热耦合。

公开(公告)号：US20120293241A1

公开(公告)日：2012-11-22

申请号：US13470760

申请日：2012-05-14

Applicant: Giuseppe SCILLA ,  Francesco Distefano

Inventor： Giuseppe SCILLA ,  Francesco Distefano

IPC: H01H37/76

CPC classification number: H03H11/24 ,  G11C17/18 ,  H01L22/22 ,  H01L22/32 ,  H01L23/345 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An electronic trimming circuit carries out a trimming operation on portions of an integrated device. The circuit includes N trimmable interconnected resistances, each connected in parallel to a respective shunt fuse. N trimming transistors are each connected to a respective one of the shunt fuses to force therethrough substantially the whole current flowing in the respective trimming transistor. N bias networks are each functionally connected to a control terminal of a respective one of the trimming transistors to directly bias an active junction thereof. An externally driven heating device is thermally coupled with the active junctions of the trimming transistors adapted to raise the temperature thereof.

Abstract translation: 电子修整电路对集成器件的部分进行修整操作。 该电路包括N个可修剪的互连电阻，每个电阻并联连接到相应的分流保险丝。 N个微调晶体管各自连接到分流熔丝中的相应一个，以迫使基本上流过各个微调晶体管的整个电流。 N个偏置网络各自功能地连接到相应一个修整晶体管的控制端子，以直接偏置其有源接点。 外部驱动的加热装置与适于升高其温度的修整晶体管的有源结热耦合。