Ion wind apparatus with no drifted balanced voltage

A technology of balancing voltage and ion blower, applied in static electricity, electrical components and other directions, can solve the problems of insufficient adjustment amount and environmental deterioration, and achieve the effect of wide adjustment range and stable and accurate ability to control and adjust voltage.
CN101094556AInactive Publication Date: 2007-12-26SHENZHEN KAIFA TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN KAIFA TECH
Publication Date
2007-12-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention comprises: a fan, a needle rack, a positive high voltage generator, a negative high voltage generator and a balance voltage sensor. It also comprises a MPU control board used for making continuous sampling and analysis for the balanced voltage signals of ion blower fan returned from said balanced voltage sensor, and according to the variation of the balanced voltage signal, adjusting the zeroing voltage on the MPU control board so as to adjust the output of the negative high voltage generator.
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Description

technical field

[0001] The invention relates to a DC electrostatic ion blower, more specifically, relates to an ion blower for eliminating static charges existing in the production of electrostatic sensitive electronic components (such as computer hard disk magnetic heads, semiconductor devices, etc.) without offset in the balance voltage. Background technique

[0002] With the continuous development of semiconductor, especially hard disk magnetic head manufacturing technology, the requirements for electrostatic discharge (ESD) control in the production environment of magnetic heads and other products are getting higher and higher. For example, the Human Body Model (HBM) control specification has been raised from 15,000V more than 10 years ago to 15V now. As an important equipment for ESD control in the production environment, the electrostatic ion fan is required to continuously improve its performance to meet the ESD control requirements of the product. The working princi...

Claims

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