Laser quasi-synchronous scanning method and system

A quasi-synchronized, laser technology, applied in the field of laser quasi-synchronized scanning and systems, to avoid repeated heating

Inactive Publication Date: 2014-01-01
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to solve the technical problem of excessive stress and warpage caused by repeated heating at the overlapped part of the start point and end point in laser quasi-synchronous scanning, and to provide a method that can avoid excessive stress caused by repeated heating. Laser Quasi-Synchronous Scanning Method Leading to Excessive Warpage

Method used

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  • Laser quasi-synchronous scanning method and system
  • Laser quasi-synchronous scanning method and system

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Embodiment Construction

[0032] Such as figure 1 Shown, in one embodiment, a kind of laser quasi-synchronous scanning method comprises the steps:

[0033] Step S110, absorbing and fixing the pre-laminated glass package.

[0034] In this embodiment, the glass package includes an aligned upper glass substrate and a lower glass substrate, and glass frit placed between the upper glass substrate and the lower glass substrate, wherein the glass frit will surround the upper glass substrate and the lower glass substrate. edge placement.

[0035] First vacuumize the sealed chamber to ensure the yield rate of the laser quasi-synchronous process, then place the pre-laminated glass package on the adsorption platform in the sealed chamber, and drive the push rod to the pre-laminated glass package through the cylinder set around the adsorption platform. The bonded glass package is fixed by adsorption.

[0036] In step S130, the laser generator emits laser light along a preset scanning path to heat the glass frit...

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PUM

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Abstract

The invention provides a laser quasi-synchronous scanning method and a system. The method comprises: adsorbing and fixing a pre-attached glass package, emitting laser along a preset scanning path by a laser generator to heat the frit in the glass package, and detecting the current temperature of the frit; and judging whether the frit temperature reaches a melting temperature, if not, then progressively increasing the laser power. The system includes: an adsorption platform, the laser generator and a pyrometer. The adsorption platform is used for adsorbing and fixing the pre-attached glass package. The laser generator emits laser along the preset scanning path to heat the frit in the glass package, and the pyrometer detects the current temperature of the frit. The pyrometer judges whether the frit temperature reaches the melting temperature, and if not, the laser generator is controlled to progressively increase the laser power. By adopting the method and the system provided in the invention, excessive warping caused by too large stress generated by repeated heating can be avoided.

Description

technical field [0001] The invention relates to a laser quasi-synchronous scanning method and system. Background technique [0002] The traditional laser scanning method is to scan the glass frit in the glass package in a circular manner, that is, the laser is irradiated vertically from the upper surface of the glass package to the glass frit for heating, because the glass frit is wound in a circle in the glass package. After heating and melting, the glass package is sealed. Therefore, the laser emitted by the laser generator will scan the glass frit in a certain order with a certain point as the starting point at the set power, so as to realize the laser alignment of the glass frit. Simultaneous scanning. [0003] However, during the laser quasi-synchronous scanning process of this glass frit, since the starting point and the ending point of the scanning are partially coincident, this will cause the overlapping part between the starting point and the ending point after las...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/203
Inventor 葛军锋张建华付奎
Owner SHANGHAI UNIV
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