Abstract:
A method and semiconductor structure to avoid latch-up is disclosed. The method includes identifying at least one high voltage device on a semiconductor chip, identifying a circuit on the semiconductor chip separated from the identified at least one high voltage device by a guard ring, evaluating the circuit for a latch-up condition, and when the latch-up condition occurs, adjusting the contact-circuit spacing in the circuit.
Abstract:
A structure for preventing latchup. The structure includes a latchup sensitive structure and a through wafer via structure bounding the latch-up sensitive structure to prevent parasitic carriers from being injected into the latch-up sensitive structure.
Abstract:
A wrapped gate junction field effect transistor (JFET) with at least one semiconductor channel having a first conductivity type doping is provided. Both sidewalls of each of the at least one semiconductor channel laterally abuts a side gate region having a second conductivity type doping, which is the opposite of the first conductivity doping. Further, the at least one semiconductor channel vertically abuts a top gate region and at least one bottom gate region, both having the second conductivity type doping. The gate electrode, which comprises side gate region, the top gate region, and at least one bottom gate regions, wraps around each of the at least one semiconductor channel to provide tight control of the current, i.e., a low off-current, through the at least one semiconductor channel. By employing multiple channels, the JFET may provide a high on-current.
Abstract:
A resistor device structure and method of manufacture therefore, wherein the resistor device structure invention includes a plurality of alternating conductive film and insulative film layers, at least two of the conductive film layers being electrically connected in parallel to provide for high current flow through the resistor device at high frequencies with increased temperature and mechanical stability. The alternating conductive film and insulative film layers may be of a planar or non-planar geometric spatial orientation. The alternating conductive film and insulative film layers may include lateral and vertical portions designed to enable a uniform current density flow within the structure itself through a self-ballasting effect within the physical resistor. A computer aided design tool with graphical and schematic features is provided to enable generation of hierarchical parameterized cells for a resistor element with the ability to provide customization, personalization and tunability of TCR, TCR matching, and high current and ESD robustness.
Abstract:
Electrostatic discharge (ESD) structures having a connection to a through wafer via structure and methods of manufacture are provided. The structure includes an electrostatic discharge (ESD) network electrically connected in series to a through wafer via. More specifically, the ESD circuit includes a bond pad and an ESD network located under the bond pad. The ESD circuit further includes a through wafer via structure electrically connected in series directly to the ESD network, and which is also electrically connected to VSS.
Abstract:
A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a high resistivity substrate and a buried inductor formed directly in the high resistivity substrate and devoid of an insulating layer therebetween.
Abstract:
A circuit is provided which prevents dendrite formation on interconnects during semiconductor device processing due to a dendrite-forming current. The circuit includes a switch located in at least one of the dendrite-forming current paths. The switch is configured to be open or in the “off” state during processing, and is configured to be closed or in the “on” state after processing to allow proper functioning of the semiconductor device. The switch may include an nFET or pFET, depending on the environment in which it is used to control or prevent dendrite formation. The switch may be configured to change to the “closed” state when an input signal is provided during operation of the fabricated semiconductor device.
Abstract:
A device comprises a first sub-collector formed in an upper portion of a substrate and a lower portion of a first epitaxial layer and a second sub-collector formed in an upper portion of the first epitaxial layer and a lower portion of a second epitaxial layer. The device further comprises a reach-through structure connecting the first and second sub-collectors and an N-well formed in a portion of the second epitaxial layer and in contact with the second sub-collector and the reach-through structure. The device further comprises N+ diffusion regions in contact with the N-well, a P+ diffusion region in contact with the N-well, and shallow trench isolation structures between the N+ and P+ diffusion regions.
Abstract:
Design structures, structures and methods of manufacturing structures for providing latch-up immunity for mixed voltage integrated circuits. The structure includes a diffused N-Tub structure embedded in a P-wafer and provided below a retrograde N-well to a non-isolated CMOS logic.
Abstract:
A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a high resistivity substrate and a buried inductor formed directly in the high resistivity substrate and devoid of an insulating layer therebetween.