摘要:
An integrated circuit includes a plurality of I/O cells, each including a portion of the first power bus, a portion of the second power bus, and an I/O pad coupled between the portions of the first and second power buses. A first set of the plurality of I/O cells is arranged along a die edge of the integrated circuit. A second set of the plurality of I/O cells is arranged along the die edge between the first set and the die edge. For each I/O cell in the first set, the portion of the first power bus is physically connected to the portion of the first power bus of an abutting I/O cell of the second set at a boundary between the I/O cell of the first set and the abutting I/O cell of the second set. The integrated circuit includes an ESD clamp and a trigger circuit.
摘要:
A first dielectric layer is formed on a substrate in a transistor region and an NVM region, a first conductive layer is formed on the first dielectric layer, a second dielectric layer is formed on the first conductive layer, and a second conductive layer is formed over the second dielectric layer. A patterned etch is performed to remove at least a portion of the second conductive layer in the transistor region and to expose an extension portion of the first conductive layer. A first mask is formed over the transistor region having a first pattern, wherein the first pattern is of a gate stack of the MOSFET and an extension in the extension portion extending from the gate stack, and a second mask over the NVM region having a second pattern, wherein the second pattern is of a gate stack of the NVM cell. A patterned etch is then performed.
摘要:
A first dielectric layer is formed on a substrate in a transistor region and an NVM region, a first conductive layer is formed on the first dielectric layer, a second dielectric layer is formed on the first conductive layer, and a second conductive layer is formed over the second dielectric layer. A patterned etch is performed to remove at least a portion of the second conductive layer in the transistor region and to expose an extension portion of the first conductive layer. A first mask is formed over the transistor region having a first pattern, wherein the first pattern is of a gate stack of the MOSFET and an extension in the extension portion extending from the gate stack, and a second mask over the NVM region having a second pattern, wherein the second pattern is of a gate stack of the NVM cell. A patterned etch is then performed.
摘要:
An integrated circuit includes a first I/O cell disposed at a substrate, the first I/O cell including a first electrostatic discharge (ESD) clamp transistor device. The first ESD clamp transistor device includes a control electrode, a first current electrode coupled to a first voltage reference bus, and second current electrode coupled to a second voltage reference bus. The first ESD clamp transistor device has a first channel width. The integrated circuit further includes a second I/O cell including a second ESD clamp transistor device. The second ESD clamp transistor device includes a control electrode, a first current electrode coupled to the first voltage reference bus, and second current electrode coupled to the second voltage reference bus. The second ESD clamp transistor device has a second channel width different than the first channel width.
摘要:
A pair of airfoil blades having a longitudinal axis coincident with one another. Each blade is bent at the center on the plane of the chord. Each blade has an airfoil tip blade placed at the outer most trailing edge. The blades are affixed by their root ends to opposite ends of a torsion shaft. The blade chords are offset from one another, which defines a blade pitch angle. The torsion shaft is journaled perpendicular through a driveshaft, whereas the rotation of the blades can transfer through the torsion shaft to the driveshaft and cause the driveshaft to turn, eliminating the need for a hub. The blades are adapted to pivot along with the torsion shaft. The blades lie in substantially the same plane, and are adapted for rotation in a plane orthogonal to the longitudinal axis of the driveshaft. Each blade has an airfoil shaped fluid gate valve disposed on the leading edge.
摘要:
A method is provided for forming peripheral contacts between a die and a substrate. In accordance with the method, a die (305) is provided which has first and second opposing major surfaces, wherein the first major surface is attached to a substrate (303) having a first group (323) of contact pads disposed thereon, and wherein the second major surface has a second group (311) of contact pads disposed thereon. An electrically conductive pathway (326) is formed between the first and second groups of contacts with an electrically conductive polymeric composition.
摘要:
A strap includes an adjusting buckle near each end and a handle on each end. The length of the strap is adjusted using the buckles so a heavy load can be handled by a worker in a manner that permits the worker to safely carry the load in a variety of situations.
摘要:
A pad (20) is electrically connected to a first I/O cell (14) while also physically overlying active circuitry of a second I/O cell (16). Note that although the pad (20) overlies the second I/O cell (16), the pad (20) is not electrically connected to the I/O cell (16). Such a pattern may be replicated in any desired manner so that the I/O cells (e.g. 300-310) may have a finer pitch than the corresponding pads (320-324 and 330-335). In addition, the size of the pads may be increased (e.g. pad 131 may be bigger than pad 130) while the width “c” of the I/O cells (132-135) does not have to be increased. Such a pattern (e.g. 500) may be arranged so that the area required in one or more dimensions may be minimized.
摘要:
An Electrostatic Discharge (ESD) protection circuit (9) includes a plurality of I/O and power supply pad cells (22, 40) that comprise external pads (31, 41) and circuitry requiring ESD protection. The protection circuit includes an array of shunting devices (36, 46) coupled in parallel between an ESD bus (14) and a VSS bus (18) and distributed among the plurality of pad cells. One or more trigger circuits (50) control the shunting devices. ESD events are coupled from any stressed pad onto two separate buses: the ESD bus which routes the high ESD currents to the positive current electrodes of the multiple shunting devices, and a Boost bus (12) which controls the trigger circuits. During an ESD event, the trigger circuits drive the control electrodes of the shunting devices to a voltage level greater than possible with prior art circuits, thereby reducing the on-resistance of the shunting devices.
摘要:
A number of small wells under the isolation layer are formed using the same mask made of photoresist and implant step that is used for the regular wells. The small wells are formed close enough together so that they merge during normal subsequent semiconductor processing to form a merged well. The normal wells and the small wells have a concentration that is greater than that of the merged well. The desired merging of the small wells is ensured by making sure that the small wells are sufficiently close together that the normal diffusion of well implants, which occurs from the particular semiconductor process that is being used, results in the merging. One desirable use of the merged well, with its lower doping concentration, is as a resistor that has more resistance than that of the regular well without requiring an additional implant.