SEMI A4.1 - Specification for HTTP JSON Protocol Implementation for Tester Event Messaging for Semiconductors (TEMS)
NOTICE: By purchasing this download, you will receive the Primary Standard, SEMI A4 and the Subordinate Standard, SEMI A4.1. If you purchase this download, you do not need to purchase the SEMI A4 download.
Semiconductor test operations involving automated test equipment (ATE) today are experiencing increasing use of data for real-time data analysis and real-time ATE input and control, to improve test yield, throughput, efficiency, and product quality. At the same time, test equipment and test operations around the world use a diverse range of data formats, specifications, and interface requirements that create significant customer service and application engineering costs for ATE vendors, OSAT companies, IDM test operations, software providers, and handler equipment. The goal of this Specification is to create a vendor neutral way to collect test cell data.
This Specification describes the data communication between the test cell and an external server.
This Specification covers test cell data and operating conditions collection.
This Specification indicates the minimum interface requirements along with methods for adding custom capabilities.
Primary Standard (included)
SEMI A4 — Specification for the Automated Test Equipment Tester Event Messaging for Semiconductors (TEMS)
Referenced SEMI Standards (purchase separately)
SEMI A4-0821 (designation update)
SEMI A4-0421 (first published)
SEMI A4.1-0821 (first published)
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