Browse Prior Art Database

Glass cut method that used the chemical reaction for LCD manufacturing process.

IP.com Disclosure Number: IPCOM000015682D
Original Publication Date: 2002-Feb-01
Included in the Prior Art Database: 2003-Jun-21
Document File: 3 page(s) / 291K

Publishing Venue

IBM

Abstract

Glass C ut P rocess D iam ond Edge Break Bar P r e s s u r e

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  Glass cut method that used the chemical reaction for LCD manufacturing process.

Glass C ut P rocess

D iam ond Edge

Break Bar

P r e s s u r e

Micro Crack

G lass

Scratch

Current

Method

Break Separation

Glass : Si ー O ー Si W ater: H2 ー O

 Si-O -Si + H2O  → SiーO H  + HO ーSi 

O

Si

O

Si

Si

O

Si

A dvance m icro crack

Glass

Water

New M ethod

H

H

Si

Si

H

H

O

H

H

O

O

Glass cut section

Cut defective sample(Current Method):

1

[This page contains 3 pictures or other non-text objects]

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New method good sample:

Purpose of this disclosure:

This disclosure expressed about the method of the glass cutting with the production process of LCD, PDP.

It is difficult to advance the micro crack that was made with the glass cutting process in the present method in vertical direction.

It is connected with the decline of the yield.

However, glass can be cut to exact measure, by using the method in this time.

Method:

At present as for the glass cut process are
····The glass is scratched by a diamond edge.
····The glass is put external pressure to the scratched line and be divided.

The new method does glass to the hot water dip after the scratch process.

The micro crack of glass can be advanced in vertical direction by that.

After that the glass is severed complete with · process.

New method process are
····The glass is scratched by a diamond edge.

··The glass is dipped in hot water.
····The gla...