实例探究 > Praxair Employes NWA for Ultra-Pure Process Gas Customer Satisfication

Praxair Employes NWA for Ultra-Pure Process Gas Customer Satisfication

公司规模
1,000+
地区
  • America
  • Asia
  • Europe
国家
  • Belgium
  • Korea
  • Taiwan
  • United States
产品
  • NWA Quality Analyst
  • Oracle Database
技术栈
  • SPC (Statistical Process Control)
  • Oracle Database
  • Electronic Data Interchange (EDI)
实施规模
  • Enterprise-wide Deployment
影响指标
  • Cost Savings
  • Customer Satisfaction
  • Productivity Improvements
  • Waste Reduction
技术
  • 分析与建模 - 预测分析
  • 应用基础设施与中间件 - 数据库管理和存储
  • 功能应用 - 企业资源规划系统 (ERP)
适用行业
  • 电子产品
  • 半导体
适用功能
  • 流程制造
  • 质量保证
用例
  • 机器状态监测
  • 预测性维护
  • 过程控制与优化
  • 远程资产管理
服务
  • 数据科学服务
  • 系统集成
  • 培训
关于客户
Praxair Electronics produces process and precursor gases used by the majority of semiconductor chip and solar cell manufacturers. The Praxair product line includes ammonia, silane, dichlorosilane, arsine, phospine dopant mixtures, inert gases, halocarbon etchant gases, and support products and services. As one of the top players in semiconductor industry gases and related services, Praxair ships high purity gas cylinders around the world to its customers. The data-management system at the Kingman, AZ plant was used as the benchmark model to apply the same methods to ramping up the Quality Analyst systems at other Praxair gas plants in Oevel, Belgium; Giheung and Tangjung, Korea; and Toufen, Taiwan. This global effort has resulted in highly successful customer retention and expanded global business. Praxair is dealing with over 7,000 products and tracking from one to twelve quality parameters per product.
挑战
Gas contamination and variation affect chip yield rates and the required reduction in impurity levels for successful chip production. Continuous Process Improvement (CPI) drives performance to meet the requirements. To meet their CPI goals, Praxair uses NWA Quality Analyst to drive control limits tighter and decrease variation. Business requirements are driving the move to less variation and higher process capability. Many customers are demanding tighter process control and “ship-to-control” capability. Vendors such as Praxair who actively use SPC and CPI can successfully negotiate specifications with regard to their actual process capability and guarantee they will be a capable supplier. Their production is at least three sigma level, and with the ongoing CPI program they have projects in place to improve process capability to meet the evolving business demands.
解决方案
Praxair has implemented NWA Quality Analyst to drive control limits tighter and decrease variation. The data-management system at the Kingman, AZ plant was used as the benchmark model to apply the same methods to ramping up the Quality Analyst systems at other Praxair gas plants in Oevel, Belgium; Giheung and Tangjung, Korea; and Toufen, Taiwan. This global effort has resulted in highly successful customer retention and expanded global business. In the lab, they have interfaced 45 instruments to automatically generate results that are passed into an Oracle database where they are used to generate Certificates of Analysis (COAs) and Electronic Data Interchange (EDI). Most customer electronic systems are set up to automatically decline or accept the lots based on this information. The Quality Analyst automated execution and database linkage produces near-real-time results. All laboratory data enters the Oracle database, and the continuing project is integrating production equipment data into the database. Machine measurement integration is rapidly leading to real-time, on-line process control. Since most failures develop gradually, using SPC detects trends long before they become problems. The engineers can predict vacuum pump and purification trap failures months before an out-of-specification excursion occurs.
运营影响
  • The process has eliminated many hours of work and substantially reduced variation and errors in the reports.
  • Praxair has saved one full-time-equivalent salary and overhead, freeing up the Quality Manager to actively lead CPI efforts.
  • The integration of 45 instruments in the lab to automatically generate results has streamlined the data collection process.
  • The automated execution and database linkage produce near-real-time results, enhancing the efficiency of quality control.
  • The system has worked flawlessly with no downtime for many years, ensuring consistent process gas quality.
数量效益
  • Praxair has recaptured the equivalent of one Quality Manager salary and overhead.
  • The production is at least three sigma level.
  • Praxair is dealing with over 7,000 products and tracking from one to twelve quality parameters per product.

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