Anchor with the letters “C” and “W” inscribed in Top Right corner of the die.
Copyright:
(M) 1991 ST 11-92 8-91 FB A/A SGS-THOMSON MICRO- ELECTRONICS
Left:
HCMOS4T
Top Left:
ISB24118X1 WL000 ST
Top metal @ mit20x (shot 2)
shot 1 was low quality of the same die. Removed since obsolete