Process for producing a bipolar device

Details Process for producing a bipolar device Process for producing a bipolar device

1995-03-10

1997-07-01

Nguyen, Tuan H.

Fishing, trapping, and vermin destroying

437162, 437909, 437974, 148DIG10, 148DIG124, 148DIG135, H01L 21265

Patent

active

056438052

ABSTRACT:
A bipolar device having a level difference between the contact area level of a base electrode and a base region in a silicon substrate, and the contact area level of an emitter electrode and an emitter region in the silicon substrate in the range of 0.03 .mu.m to 0.1 .mu.m by removing undesirable impurities from the emitter region and a predetermined horizontal distance between a sidewall and a device isolation film does not generate dislocation and show good electric characteristics.

REFERENCES:
patent: 5137840 (1992-08-01), Desilets

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