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1. US20030212979 - Depopulated programmable logic array

Office
United States of America
Application Number 10458892
Application Date 10.06.2003
Publication Number 20030212979
Publication Date 13.11.2003
Grant Number 6804812
Grant Date 12.10.2004
Publication Kind B2
IPC
G06F 17/50
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
50Computer-aided design
H01L 21/70
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
70Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof
H01L 21/82
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
70Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof
77Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
78with subsequent division of the substrate into plural individual devices
82to produce devices, e.g. integrated circuits, each consisting of a plurality of components
H03K 19/177
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
19Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
02using specified components
173using elementary logic circuits as components
177arranged in matrix form
CPC
H03K 19/17708
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
19Logic circuits, i.e. having at least two inputs acting on one output
02using specified components
173using elementary logic circuits as components
177arranged in matrix form
17704the logic functions being realised by the interconnection of rows and columns
17708using an AND matrix followed by an OR matrix, i.e. programmable logic arrays
Applicants Lightspeed Semiconductor Corporation
Inventors Osann, Jr., Robert
Hallinan, Patrick
Lee, Jung
Mukund, Shridhar
Agents Schwartz, Sarah Barone
Haynes Beffel & Wolfeld LLP
Priority Data 09827015 05.04.2001 US
10458892 10.06.2003 US
60231059 08.09.2000 US
Title
(EN) Depopulated programmable logic array
Abstract
(EN)

A programmable logic array (PLA) in accordance with the invention achieves a maximum amount of depopulation of programmable connections while still implementing a logic function and maintaining flexibility for future reprogramming. In addition, a PLA in accordance with the invention can be built so that no matter what functionality is programmed, performance characteristics for the device are maintained. Further, a PLA in accordance with the invention does not require a regular array structure.