Accession Number : AD0427668


Title :   PRODUCTION ENGINEERING MEASURE TO IMPROVE PRODUCTION TECHNIQUES AND INCREASE THE RELIABILITY OF THE 2N328A TRANSISTOR.


Descriptive Note : Quarterly progress rept. no. 1, 30 June-30 Sep 63,


Corporate Author : NATIONAL SEMICONDUCTOR CORP DANBURY CONN


Personal Author(s) : Rau,R R ; Clarke,E N


Report Date : 30 Sep 1963


Pagination or Media Count : 29


Abstract : Efforts are reported on the work performed on improving the reliability of a PNP Silicon Alloy Transistor Type 2N328A. The PERT scheduling of the contract is reviewed and indicates that the work is on, or ahead, of schedule with only one exception, and this latter should cause no delay in contract performance. The etch wheel is already in fabrication; it will be installed in conjunction with larger furnace capacity and more dry boxes and testing stations. The recirculator has already been installed and its evaluation will be completed in the early part of the second quarter. An oxygen analyzer will be incorporated as part of the line at about the same time. Preliminary evaluations of a can welding shield give indications of improvements to be expected for this type of activity. Various methods of alumunum evaporation are being pursued as alternative processes for fabricating the devices. Step-stress testing with power dissipation as the stress has been almost completely evaluated as a convenient monitor to verify reliability improvements to be expected from the Equipment and Process Improvements. (Author)


Descriptors :   *MANUFACTURING , SILICON , TRANSISTORS , PRODUCTION , SCHEDULING , MANAGEMENT ENGINEERING , RELIABILITY(ELECTRONICS) , QUALITY CONTROL , VAPOR PLATING , ALUMINUM , GAS ANALYSIS , OXYGEN , WELDING , VACUUM FURNACES , LIFE EXPECTANCY(SERVICE LIFE)


Distribution Statement : APPROVED FOR PUBLIC RELEASE