Antenna effect discharge circuit and manufacturing method

Patent metadata

Field	Value
Publication number	US-9490249-B2
Application number	US-201414265635-A
Country	US
Kind code	B2
Filing date	Apr 30, 2014
Priority date	Apr 30, 2014
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

An antenna effect discharge circuit is described for a device having patterned conductor layers, which may be exposed to charge inducing environments during a manufacturing process. The antenna effect discharge circuit has a terminal that is connected to a node on the device to be protected from charge accumulation and a gate, such as the gate of a field effect transistor in the circuit, and a terminal through which accumulated charge can be discharged to the substrate. A capacitor couples the gate in the antenna effect discharge circuit to the substrate. A voltage supply circuit is configured to provide voltage sufficient to bias the antenna effect discharge circuit in an off condition during operation of the device. A patterned conductor in the upper layer, and preferably the uppermost layer, of the device links the gate in the antenna effect discharge circuit to the voltage supply circuit.

First claim

What is claimed is:

1. An integrated circuit device, comprising:
a substrate;
a plurality of layers of patterned conductors and interlayer connectors on the substrate, the plurality of layers including an upper layer and one or more lower layers;
an antenna effect discharge circuit on the substrate including a transistor having a gate, a channel well, and source and drain terminals in the channel well;
a capacitor having a first terminal in, or connected to, the substrate, a…

Assignees

• Macronix Int Co Ltd

Inventors

• Lue Hang-Ting
• Yeh Teng-Hao

Classifications

• H10D84/813

  Electricity · mapped topic

• H10D89/921 Primary

  Electricity · mapped topic

• H10W42/20

  Electricity · mapped topic

• H10D89/811

  Electricity · mapped topic

• H10D84/0186

  Electricity · mapped topic