Semiconductor integrated circuit device capable of switching...

Details Semiconductor integrated circuit device capable of switching... Semiconductor integrated circuit device capable of switching...

2005-03-08

2005-03-08

Tran, Andrew Q. (Department: 2824)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S726000, C714S731000, C365S201000, C365S233100, C365S196000, C365S202000, C365S189050, C365S220000

Reexamination Certificate

active

06865705

ABSTRACT:
A semiconductor integrated circuit device comprises a control unit for switching a mode about the trimming or estimation in an internal circuit, the control unit including a controller capable of realizing the mode switching control about the trimming or estimation by the JTAG method. The controller includes an instruction decoder for decoding an input instruction, a shift scan register circuit for enabling a boundary scan based on the decoded result of the instruction decoder, and an operation controller for controlling the operations of the instruction decoder and the shift scan register circuit. Therefore, the trimming becomes possible after sealing a semiconductor chip into a package.

REFERENCES:
patent: 5970005 (1999-10-01), Yin et al.
patent: 6163499 (2000-12-01), Suzuki
patent: 6473352 (2002-10-01), Nishino et al.
patent: 11-31398 (1999-02-01), None
patent: 11-289322 (1999-10-01), None

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