Computer-Aided Engineering. June 1993, Vol. 12 Issue 6, pSR1, 1 p.
CAD/CAM, New Technique, Design, Optimization, Time to Market, Prototype, and CAD-CAM systems -- Innovations
Product manufacturers can save significant time and expenditure by creating realistic prototypes of products on a computer design system. These 'soft prototypes,' if properly implemented, may be used to effectively evaluate a proposed product's function, fit, producibility and reliability. The creation of soft prototypes is a viable alternative to the traditional method of constructing 'hard' working models of products, which is usually done in a serial manner as improvements are devised. Many firms spend the majority of time on a project between conceptualization and manufacture on prototyping, so anything that speeds up the process is beneficial. Proper use of soft prototypes can lead to higher product quality, lower costs, a shorter time to market and better hard prototypes. A variety of software is required for optimal prototyping, including solid modeling, visualization, analysis, design optimization, process simulation and rapid prototyping tools.
Proceedings of the IEEE. Feb 1990, Vol. 78 Issue 2, p356, 37 p. chart Structure of the IC manufacturing process.
Computer-Aided Design, Manufacturing, Product Life Cycle, Very-Large-Scale Integration, Optimization, Performance Improvement, and Circuit Design
The goals of computer-aided design (CAD) for manufacturability as applied to very-large-scale integration (VLSI) circuit design are to optimize the design along with its manufacturing process in a recursive manner to maximize product yield. Manufacturability of a chip, particularly in terms of product yield, can have a large impact on manufacturing profit. The chip development cycle typically consists of four major stages: planning, design, prototyping and manufacturing. Each of these stages is discussed. Two classes of uncertainty that affect manufacturability are modeling inefficiencies and process disturbances. Specific problems include global disturbances, process design mis-centering, design over sensitivity and process-design mismatches. CAD tools to optimize IC manufacturability should provide process simulation, circuit simulation and yield and performance predictors.
Computer-Aided Engineering. Oct 1993, Vol. 12 Issue 10, p78, 3 p. table
Computer-aided design, Optimization, Parametric Tests, and Computer-aided design -- Usage
Designers who implement analysis tools using feature-based parametric optimization can reduce the cost and time involved in the design process and the time needed to respond to design alterations. Feature-based parametric optimization enables parametric computer-aided design (CAD) systems and finite-element analysis (FEA) programs to be connected with traditional optimization theory to generate true design optimization functionality. Optimization will only be a practical design tool if feature-based modeling is used. The cost benefits of feature-based optimization come from reduced material costs, reduced engineer design/analysis time and lowered prototyping needs.
Computer-Aided Engineering. August 1993, Vol. 12 Issue 8, p41, 3 p. photograph
Concurrent engineering, Team Approach, Computer-Aided Design, Product Development, Optimization, and Concurrent engineering -- Usage
Concurrent engineering (CE) utilizes a team approach, focuses on processes and employs a variety of computer-aided technology to speed up productivity, improve product quality and cut costs. CE teams include people from all areas of product development, including engineers, marketing personnel, analysts and customers. Analyzing and revising product development processes helps companies reach their goals. Utilizing computer-aided engineering tools such as computer-aided design and manufacturing programs (CAD/CAM) make CE practical. Technology commonly used in CE includes visualization via CAD/CAM, product data management systems, video, soft prototyping and design for manufacture and assembly. Although most experts believe it takes years to implement CE, some have found it invaluable as a means of improving products, eliminating errors and reducing design-to-production time.