Mask read-only memory

The mask ROM includes one substrate layer, one first doped layer, one second doped layer and one encoding layer. The first doped layer formed on the substrate is used as the reserved ground line of the mask ROM, the second doped layer formed on the first doped layer is used to form one switch togeth...

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Bibliographic Details
Main Author YIMIN ZHENG
Format Patent
LanguageEnglish
Published 15.10.2003
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
PHYSICS
SEMICONDUCTOR DEVICES
STATIC STORES
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Summary:The mask ROM includes one substrate layer, one first doped layer, one second doped layer and one encoding layer. The first doped layer formed on the substrate is used as the reserved ground line of the mask ROM, the second doped layer formed on the first doped layer is used to form one switch together with the first doped layer, and the encoding layer formed on the first doped layer and the second doped layer has its data read depending on the switch during operation.
Bibliography:Application Number: CN2002105446