Semiconductor device and method of producing the same

Details Semiconductor device and method of producing the same Semiconductor device and method of producing the same

2007-12-04

2007-12-04

Parekh, Nitin (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Including dielectric isolation means

C257S506000, C257S374000, C257S758000, C257SE21546

Reexamination Certificate

active

11135316

ABSTRACT:
In a semiconductor device having element isolation made of a trench-type isolating oxide film13, large and small dummy patterns11of two types, being an active region of a dummy, are located in an isolating region10, the large dummy patterns11bare arranged at a position apart from actual patterns9, and the small dummy patterns11aare regularly arranged in a gap at around a periphery of the actual patterns9, whereby uniformity of an abrading rate is improved at a time of abrading an isolating oxide film13ais improved, and surface flatness of the semiconductor device becomes preferable.

REFERENCES:
patent: 4949162 (1990-08-01), Tamaki et al.
patent: 5902752 (1999-05-01), Sun et al.
patent: 5911110 (1999-06-01), Yu
patent: 5976949 (1999-11-01), Chen
patent: 6281049 (2001-08-01), Lee
patent: 10-92921 (1998-04-01), None
patent: 1998-050146 (1998-09-01), None

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