Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Patent
1992-10-23
1995-06-27
Larkins, William D.
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
257659, H01L 2701, H01L 2704, H01L 2360
Patent
active
054282420
ABSTRACT:
A semiconductor device provides for shielding of resistance elements as well as other elongated passive or active components formed in the structure by diffusion of impurities into a polycrystalline silicon layer or a semiconductor substrate and a conductor is formed on an upper surface of the resistance element having a resistance value lower than that of the formed resistance element. Also, the conductor is formed so as to hold a fixed potential value. This structure prevents an invasion or infiltration of impurities which causes a variation in the resistance value of the resistance element. Further, the conductor functions as shielding from noise from a signal line in close proximity to the resistance element or from external noise by means of fixing the conductor at a fixed potential value thereby maintaining the stability of the resistance value of the resistance element.
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Furuya Yasunari
Moriya Kazuko
Carothers, Jr. W. Douglas
Larkins William D.
Seiko Epson Corporation
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