摘要:
Various methods for determining a layout of an integrated circuit are described. For example, a method is described comprising determining a layout of an integrated circuit comprising a plurality of functional cells, wherein a maximum extent of each of the cells in a first direction is identical and wherein an outer boundary of a first cell of the plurality of cells forms a first polygon with at least five corner points; and storing data representing the layout on a computer-readable medium. Integrated circuits in accordance with the layout are also described.
摘要:
An integrated semiconductor circuit has a regular array of logic function blocks (L) and a regular array of wiring zones (X) corresponding thereto. The wiring lines in at least one wiring layer of a wiring zone (X) are realized as line segments that are continuous within the wiring zone and are interrupted at zone boundaries. Furthermore, the semiconductor circuit comprises driver cells that surround a logic cell of the logic function block in an L-shaped manner.
摘要:
An integrated semiconductor circuit has a regular array of logic function blocks (L) and a regular array of wiring zones (X) corresponding thereto. The wiring lines in at least one wiring layer of a wiring zone (X) are realized as line segments that are continuous within the wiring zone and are interrupted at zone boundaries. Furthermore, the semiconductor circuit comprises driver cells that surround a logic cell of the logic function block in an L-shaped manner.
摘要:
A carry-ripple adder has four summing inputs for receiving four input bits having the significance w that are to be summed, three carry inputs for receiving three input carry bits having the significance w, a summation output for outputting an output summation bit having the significance w, and three carry outputs for outputting three output carry bits having the significance 2w.
摘要:
A mask-programmable logic macro includes at least three input terminals an output terminal and a first set of transistors comprised of at least three transistors formed on a semiconductor substrate, each of the transistors comprising a controllable path and a control terminal. The controllable paths can be connected in series with one another between a first supply terminal and the output terminal by metallizing first metallization regions. The the transistors of the first set of transistors are arranged on the semiconductor substrate in such a way that at least one controllable path of the transistors can be bridged by metallizing one of the first metallization regions. A respective of the input terminals can be connected to a respective of the control terminals by metallizing a second metallization region.
摘要:
Various methods for determining a layout of an integrated circuit are described. For example, a method is described comprising determining a layout of an integrated circuit comprising a plurality of functional cells, wherein a maximum extent of each of the cells in a first direction is identical and wherein an outer boundary of a first cell of the plurality of cells forms a first polygon with at least five corner points; and storing data representing the layout on a computer-readable medium. Integrated circuits in accordance with the layout are also described.
摘要:
A carry ripple adder contains five first inputs for accepting five input bits having equal significance w that are to be summed and two second inputs for accepting two carry bits having the significance w. It also contains an output for a sum bit having the significance w and two outputs for two carry bits having the significances 2w and 4w.
摘要:
One embodiment provides a content addressable memory cell having a first memory cell which is electrically connected to a comparator unit. The comparator unit is constructed from at least eight transistors, at least four transistors being arranged in a first circuit part and at least four transistors being arranged in a second circuit part and each of the circuit parts having at least two circuit branches.
摘要:
A carry-select adder composed of blocks, each containing an input adder cell and a number of adder cells of a first and second type. Each block has one input adder cell interconnected to adder cells of the first and second type which are connected in an alternating fashion. The cells are connected to each other via carry lines and block carry lines. The adder cells of the first and second type each have a gate arrangement which utilizes field effect transistors for transfer, pull-up and pull-down transistors. These transistors are not a component part of a combination gate within an adder cell. The gate arrangement significantly increases the processing speed of the carry-select adder.