摘要:
A chip layout is generated based on a quantified fabrication process capability. A minimum required value is selected for a fabrication process capability factor associated with a fabrication process to be performed on a layer sub-region within the chip. Design rules are determined for the layer sub-region within the chip that will enable the selected minimum required value for the fabrication process capability factor associated with the layer sub-region to be satisfied. A layout is then generated for the layer sub-region within the chip using the determined design rules associated with the layer sub-region. Fabrication process capability can be improved by restricting the design rules and generated layouts to a linear design style that requires features defined within the chip to be linear in shape and without bends. The linear design style enables optimization of photolithographic rendering without the need to consider two-dimensional optical effects.
摘要:
A transistor is defined to include a substrate portion and a diffusion region defined in the substrate portion so as to provide an operable transistor threshold voltage. An implant region is defined within a portion of the diffusion region so as to transform the operable transistor threshold voltage of the diffusion region portion into an inoperably high transistor threshold voltage. A gate electrode is defined to extend over both the diffusion region and the implant region. A first portion of the gate electrode defined over the diffusion region forms a first transistor segment having the operable transistor threshold voltage. A second portion of the gate electrode defined over the implant region forms a second transistor segment having the inoperably high transistor threshold voltage. Therefore, a boundary of the implant region defines a boundary of the operable first transistor segment.
摘要:
Selected cells in a semiconductor chip layout are replaced with corresponding PCT pre-processed cells. Each PCT pre-processed cell represents a particular selected cell having been previously subjected to a cell-level-PCT-processing operation so as to include PCT-based cell layout adjustments. Following replacement of the selected cells in the semiconductor chip layout with corresponding PCT pre-processed cells, a chip-wide PCT processing operation is performed on the semiconductor chip layout for a given chip level. The presence of the PCT pre-processed cells in the semiconductor chip layout serves to accelerate the chip-wide PCT processing of the semiconductor chip layout. The chip-wide PCT processed semiconductor layout for the given chip level is recorded on a persistent storage medium.
摘要:
In some aspects, a method is provided for detecting a void in a test structure that comprises (a) measuring a resistance of the test structure; (b) applying a stress to the test structure at increasing levels until at least one of: (i) the measured resistance of the test structure exceeds a predetermined resistance threshold; and (ii) the stress level reaches a predetermined stress maximum; (c) detecting a void if the measured resistance of the test structure exceeds the predetermined resistance threshold; and (d) determining that the test structure is void free if the stress level reaches the predetermined stress maximum without the measured resistance of the test structure exceeding the predetermined resistance threshold. Numerous other aspects are provided.
摘要:
A semiconductor chip is provided to include one or more distinct but functionally interfaced dynamic array sections. Each dynamic array section follows a dynamic array architecture that requires conductive features to be linearly defined along a virtual grate in each of a plurality of levels of the semiconductor chip. Each virtual grate is perpendicular to another virtual grate that is either a level above or a level below. Each virtual grate is defined by a framework of parallel lines spaced at a constant pitch. Some of the lines in the virtual grate are occupied by multiple conductive features. A substantially uniform gap can be maintained between proximate ends of adjacent conductive features that occupy a common line in the virtual grate. The substantially uniform gap between the proximate ends of adjacent conductive features can be maintained within each line in the virtual grate that is occupied by multiple conductive features.
摘要:
An integrated circuit includes conductive elements and a radiation sensitive material interposed between the conductive elements and dosed to different conductivities in different portions thereof. Another aspect is a process of integrated circuit fabrication including steps of depositing a radiation sensitive material as a layer and variably dosing it with radiation to establish areas of higher and lower resistivity in the layer. A printed wiring board includes radiation sensitive material and the board further has a conductor layer affixed to the base. A transistor has a radiation sensitive material dosed to have two conductive regions separated by a gap of a lower conductivity in the radiation sensitive material, and a conductive substance deposited over the gap. These elements are useful in smart power devices, digital computers, controllers and electronic applications generally. Other devices, systems and processes are disclosed.
摘要:
An integrated circuit voltage multiplier 30 in a semiconductor substrate of a first conductivity type. The multiplier includes a diode 22, having a first voltage VDD applied to a first port thereof, the diode being made of: 1) a first well 12 of a second conductivity type formed in the substrate, being connected to a second voltage VB; 2) a second well 14 of the first conductivity type formed in the first well, having an electrical contact point comprising the first port of the diode; and 3) a third well 16 of the second conductivity type formed in the second well, having an electrical contact point comprising a second port of the diode. The multiplier also includes a capacitor C3, having a first contact thereof connected to the second port of the diode and having a third, pulsed voltage PH1 connected to a second contact of the capacitor. The second voltage has a value of the first voltage or higher, such that the emitter-base junction of a parasitic transistor 20 formed by the substrate, the first well and the second well is not forward biased, and wherein the third, pulsed voltage drives the second port of the diode to a voltage of a level of the first voltage, less the forward bias voltage drop of the diode, plus the level of the third voltage.
摘要:
The device has a semiconductor chip having active circuitry in the face thereof. The circuitry has busing over it containing two conductive layers having a plurality of contacts and vias with spacings between them that alternate with respect to one another to provide current ballasting and improved switching uniformity. The spacings between the alternating contacts and vias provide regions of maximum conductor thickness and therefore reduces the busing resistance. Staggering the rows of alternating contacts and vias provides further current ballasting. A first conducting layer is used to contact and provide electrically isolated low resistive conducting paths to the various semiconductor regions while the second conducting region is used to provide selective contact to the first conductive layer, thus providing a means of busing large currents over active semiconductor area without sacrificing performance parameters.
摘要:
A transistor device 10 is disclosed herein. A doped layer 14 of a radiation sensitive material is formed over a substrate 12. The radiation sensitive material 14 may be polyimide, polybenzimidazole, a polymer, an organic dielectrics, a conductor or a semiconductor and the substrate 12 may be silicon, quartz, gallium arsenide, glass, ceramic, metal or polyimide. A neutral (undoped) layer 16 of radiation sensitive material is formed over the doped layer 14. First and second source/drain regions 18 and 20 are formed in the neutral layer 16 and extend to a top portion of the doped layer 14. A gate region 22 is formed in a top portion of the neutral layer 16 between the first source/drain region 18 and second source/drain region 20 such that a channel region 24 is formed in the doped layer 14 beneath the gate region 22.
摘要:
A low voltage flash EEPROM X-Cell includes an array of memory cell transistors (24) that constitute asymmetric floating gate memory cells wherein programming is achieved on only one side of the memory cells (24). The programming side of each of the memory cells (24) is connected to one of a plurality of Column Lines (28) at nodes (30). Each node (30) shares the programming side of two of the memory cells (24) and the non-programming side of two of the memory cells (24). The control gates of each of the memory cells (24) are connected to Word Lines (26) associated with rows of the array. To Flash Write all of the memory cells (24), the Column Lines (38) are connected to a negative medium voltage and the row lines (26) are connected to a positive medium voltage. To selectively erase one of the memory cells (24), the Column Line (28) associated with the programming side of the select memory cell transistor is connected to a positive medium voltage and the associated line (26) is connected to a positive Read voltage. The remaining Word Lines are connected to a negative Read voltage and the remaining Column Lines (28) are connected to a zero volt level.