{{tag>collection_infosecdj vendor_st type_unknown year_1991 foundry_unknown tech_1500nm}}

A small EEPROM memory card with "Secure Logic Access Control". Has 192 bits on the die. Fabbed at the ST fab in Rousset, FR using the 1500nm CMOS tech node.

Datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/22202/STMICROELECTRONICS/ST1305B.html

====== Die ======

Die size: 1.40x1.18 mm approx.

Bonding pad opening: 128.2 um, square.

Metal pitch: 4 um.

Poly pitch: 3.75 um min / 4.5 um typ.

Poly width: 1.5 um min.

Text features on the die:

<code>
ST1305B
</code>

<code>
(Logo)
1991
(C) (M)
</code>

<code>
LS SF ML RF
OA JJM GC
</code>

{{https://siliconpr0n.org/map/st/st1305b/single/st_st1305b_infosecdj_mz_nikpa40x.thumb.jpg}}

[[https://siliconpr0n.org/map/st/st1305b/infosecdj_mz_nikpa40x/|Top metal imaged under Nikon PlanApo 40x/1.0 oil]]

  * [[https://siliconpr0n.org/map/st/st1305b/single/st_st1305b_infosecdj_mz_nikpa40x.jpg|Single]] (18105x15167, 62.7491MiB)

{{https://siliconpr0n.org/map/st/st1305b/single/st_st1305b_infosecdj_mz_nikpa40x_poly.thumb.jpg}}

[[https://siliconpr0n.org/map/st/st1305b/infosecdj_mz_nikpa40x_poly/|Poly+diffusuon imaged under Nikon PlanApo 40x/1.0 oil]]

  * [[https://siliconpr0n.org/map/st/st1305b/single/st_st1305b_infosecdj_mz_nikpa40x_poly.jpg|Single]] (18131x15199, 51.6819MiB)