摘要:
Methods and systems for altering the electrical resistance of a wiring path. The electrical resistance of the wiring path is compared with a target electrical resistance value. If the electrical resistance of the wiring path exceeds the target electrical resistance value, an electrical current is selectively applied to the wiring path to physically alter a portion of the wiring path. The current may be selected to alter the wiring path such that the electrical resistance drops to a value less than or equal to the target electrical resistance value.
摘要:
Structures and methods for electrostatic discharge (ESD) device control in an integrated circuit are provided. An ESD protection structure includes an input/output (I/O) pad, and an ESD field effect transistor (FET) including a drain connected to the I/O pad, a source connected to ground, and a gate. A first control FET includes a drain connected to the I/O pad, a source connected to the gate of the ESD FET, and a gate connected to ground. A second control FET includes a drain connected to the gate of the ESD FET and the source of the first control FET, a source connected to ground, and a gate connected to the I/O pad.
摘要:
Bi-directional back-to-back stacked SCRs for high-voltage pin ESD protection, methods of manufacture and design structures are provided. The device includes a symmetrical bi-directional back-to-back stacked silicon controlled rectifier (SCR). An anode of a first of the back-to-back stacked SCR is connected to an input. An anode of a second of the back-to-back stacked SCR is connected to ground. Cathodes of the first and second of the back-to-back stacked SCR are connected together. Each of the symmetrical bi-directional back-to-back SCRs include a pair of diodes directing current towards the cathodes which, upon application of a voltage, become reverse biased effectively and deactivating elements from one of the symmetrical bi-directional back-to-back SCRs while the diodes of another of the symmetrical bi-directional back-to-back SCRs direct current in the same direction as the reverse biased diodes.
摘要:
Semiconductor-on-insulator device structures with enhanced electrostatic discharge protection, and design structures for an integrated circuit with device structures exhibiting enhanced electrostatic discharge protection. A device is formed in a body region of a device layer of a semiconductor-on-insulator substrate, which is bounded by an inner peripheral sidewall of an annular dielectric-filled isolation structure that extends from a top surface of the device layer to the insulating layer of the semiconductor-on-insulator substrate. An annular conductive interconnect extends through the body region and the insulating layer to connect the body region with the bulk wafer of the semiconductor-on-insulator substrate. The annular conductive interconnect is disposed inside the inner peripheral sidewall of the isolation structure, which annularly encircles the body region.
摘要:
The present invention relates to e-fuse devices, and more particularly to a device and method of forming an e-fuse device, the method comprising providing a first conductive layer connected to a second conductive layer, the first and second conductive layers separated by a barrier layer having a first diffusivity different than a second diffusivity of the first conductive layer. A void is created in the first conductive layer by driving an electrical current through the e-fuse device.
摘要:
In one embodiment of an e-fuse programming/re-programming circuit, the e-fuse has two short high atomic diffusion resistance conductor layers positioned on opposite sides and at a same end of a long low atomic diffusion resistance conductor layer. A voltage source is used to vary the polarity and, optionally, the magnitude of voltage applied to the terminals in order to control bi-directional flow of electrons within the long conductor layer and, thereby formation of opens and/or shorts at the long conductor layer-short conductor layer interfaces. The formation of such opens and/or shorts can be used to achieve different programming states. Other circuit structure embodiments incorporate e-fuses with additional conductor layers and additional terminals so as to allow for even more programming states. Also disclosed are embodiments of associated e-fuse programming and re-programming methods.
摘要:
Electrostatic discharge (ESD) protection device and process for protecting a conventional FET. The device includes at least one FET body forming a resistance, and a triggering circuit coupled to a protection FET and the resistance. The resistance raises a voltage of the at least one body, such that the protection FET is triggered at a voltage lower than the conventional FET.
摘要:
An integrated circuit having a CML driver including a driver biasing network. A first output pad and a second output pad are connected to a voltage pad. A first driver is connected to the first output pad and the voltage pad. A second driver is connected to the second output pad and the voltage pad. A first ESD circuit is connected to the voltage pad, the first output pad, and the first driver. A second ESD circuit is connected to the voltage pad, the second output pad, and the second driver. The first ESD circuit biases the first driver toward a voltage of the voltage pad when an ESD event occurs at the first output pad, and the second ESD circuit biases the second driver toward the voltage of the voltage pad when an ESD event occurs at the second output pad.
摘要:
A Silicon on Insulator (SOI) Integrated Circuit (IC) chip with devices such as a vertical Silicon Controlled Rectifier (SCR), vertical bipolar transistors, a vertical capacitor, a resistor and/or a vertical pinch resistor and method of making the device(s). The devices are formed in a seed hole through the SOI surface layer and insulator layer to the substrate. A buried diffusion, e.g., N-type, is formed through the seed hole in the substrate. A doped epitaxial layer is formed on the buried diffusion and may include multiple doped layers, e.g., a P-type layer and an N-type layer. Polysilicon, e.g., P-type, may be formed on the doped epitaxial layer. Contacts to the buried diffusion are formed in a contact liner.
摘要:
A method of forming a semiconductor structure, including forming a channel in a first portion of a semiconductor layer and forming a doped extension region in a second portion of the semiconductor layer abutting the channel on a first side and abutting an insulator material on a bottom side. The first portion of the semiconductor layer is thicker than the second portion of the semiconductor layer.