PRODUCTION ENGINEERING MEASURES TO INCREASE TRANSISTOR RELIABILITY.
Quarterly progress rept. no. 2, 1 Oct-31 Dec 62.
TEXAS INSTRUMENTS INC DALLAS
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Work continued on the process items and progress was made in the following areas 1 Continued improvement was made in material preparation area, particularly in the area of slice cleaning 2 The new package was tooled and modified slightly. A machine for accurately assembling the slug and header was built and evaluated satisfactorily 3 Work continued on improved contacts. A gold alloy collector braze and a cold-bonded aluminum emitter and base contact was adopted for the planar device 4 Several pieces of equipment were built to facilitate process control and 5 Planar diffusion processes were optomized in production facilities. The Dry Box Line for assembling the planar device was made operational. The areas of engineering activity were as follows 1 Material preparation, 2 Cleaning techniques and problems, 3 Assembly prior to encapsulation, 4 Package improvement, 5 Quality assurance, and 6 Value achievement. Author