Multiple Precast Component Orders Acceptance and Scheduling

Optimized flowshop scheduling of multiple production lines for precast production

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The single machine multiple orders per job scheduling problem

The standard unit of transfer in new semiconductor wafer fabrication facilities is the front opening unified pod (FOUP). Due to automated material handling system and cost concerns, the number of FOUPs in a wafer fab is kept limited. Large 300-mm wafers allow for customer orders to be filled with less than a full FOUP of wafers in these new fabs, thereby making grouping orders from multiple cus...

Multiple orders per job batch scheduling with incompatible jobs

The growth in demand for semiconductors has been accompanied by intense competition between semiconductor manufacturers to satisfy customer on-time delivery needs. This paper is motivated by scheduling the wafer fabrication phase of 300-mm semiconductor manufacturing, as it contains both batch processing operations and multiple customer orders being grouped into production jobs. The resulting m...

Scheduling interval orders in parallel

Interval orders are partial orders defined by having interval representations. It is well known that a transitively oriented digraph G is an interval order iff its (undirected) complement G is chordal. We investigate parallel algorithms for the following scheduling problem: Given a system consisting of a set T of n tasks (each requiring unit execution time) and an interval order 4 over I, and g...

Scheduling Interval Orders in Parallel Ernst