TFT LCD黄光制程介绍
Coater introduction 粘滞性
IVO Info Vision
• 粘滞性与时间有关,会随着PR溶剂的挥 发增加。粘滞性增加,PR流动趋势变小, 厚度会增加。
2013-8-27
Coater introduction 粘附性
• PR与下层材料黏附之强度。如黏附性不 好,会导致表面图形的变形。
IVO Info Vision
2013-8-27
Cleafe
IVO Info Vision
2013-8-27
IVO Info Vision
Coater introduction
2013-8-27
Coater introduction
Dehydration bake
IVO Info Vision
2013-8-27
Coater introduction
Photo Process-Adhesion
IVO Info Vision
2013-8-27
Coater introduction
Photo Process-Coating
IVO Info Vision
• Resist :
IVO Info Vision
2013-8-27
Coater introduction
Dehydration bake
IVO Info Vision
2013-8-27
Coater introduction
Photo Process-Adhesion
• Purpose : To Increase the Adhesion of Photoresist • Adhesion:HMDS(Hexamethyldisilazane); [(CH3)3Si]2NH • Key parameter : – Adhesion Method – Adhesion Time – Temperature – Exhaust • Function: – Si-O-H----OH2+[(CH3)3Si2NH Si-O-Si-(CH3)3
IVO Info Vision
2013-8-27
Coater introduction 分辨率
• 能够在玻璃基板上形成符合要求的最小 的特征图形。形成的CD越小,PR的分辨 能力和光刻系统就越好
IVO Info Vision
2013-8-27
Coater introduction 对比度
• PR从曝光区域到非曝光区域的过度的陡 度
2013-8-27
Cleaner introduction
The basic principle of inclined rinse
IVO Info Vision
2013-8-27
Cleaner introduction
Brush structure
IVO Info Vision
2013-8-27
材料
• 石英:高光学透射和低温度膨胀。 • 铬:沉积在掩膜版上的不透明材料。有时 会在铬表面形成一层氧化铬抗反射层。
2013-8-27
Exposure Introduction
Operation Mode of the Console • Inline mode
Communication between MPA and I/F Plate is loaded by I/F arm
IVO Info Vision
Mask
Chrome
Resist Substrate Positive Type Developing Negative Type
Thin Film
正光阻:曝光后,光照到部分显影后去除 负光阻:曝光后,光照到部分显影后保留
2013-8-27
Coater introduction
IVO Info Vision
Photo Introduction
INT Array
2013-8-27
IVO CONFIDENTIAL
Array Process
Light Photo Mask Photo Resist Thin Film
IVO Info Vision
Photo Resist Thin Film Glass
– 树脂(20%) – 感光剂 ( PAC)(5%) – 溶剂(75%) – 添加剂
2013-8-27
Coater introduction
IVO Info Vision
目的
1.将MASK上的图案转移到胶中 2.在后续工艺中保护下面的材料
2013-8-27
Coater introduction
Exposure Light
Exp. PreBake Out Titler or E.E.
RB In EUV & AK Out Dry AAjet
DHB
In (Vacuum dry)
Linear-coating
2013-8-27
IVO Info Vision
Cleaner introduction
2013-8-27
Cleaner introduction
Exposure Introduction
Illumination System
光源: 8千瓦超高压水银灯,2只 Lamp:Standard type--750小时,Long type--1000小时 波长: exposure----340nm~460nm [g/h/i line,436nm/405nm/365nm] alignment---536nm~600nm [d/e line,578nm/546nm] 强度: 紫外輻射 紅外輻射
IVO Info Vision
• Standalone mode
No communication between MPA and I/F Plate is loaded by Hand
• Console Mode (no use)
No communication between MPA and Console
2013-8-27
Exposure Introduction
UM06 System
IVO Info Vision
光罩只在Y 方向移动 凹面镜
凸面镜 玻璃基板可在 XY方向移动
梯形镜
2013-8-27
Exposure Introduction
Resolution of Exposure Machine Resolution vs. Wavelength
Cleaner introduction
Air knife
IVO Info Vision
• Water stripper • Vertical tilt 60° • Horizontal tilt 60°
2013-8-27
Cleaner introduction
The dry procedure of AK
树脂
IVO Info Vision
惰性的聚合物(包括碳、氢、氧的有机高分子)基质, 用于把PR中的不同材料聚在一起的黏合剂。给予PR的 机械和化学性质(黏附性、柔顺性、热稳定性)
感光剂
PR内的光敏成分,对光形式的辐射能,特别是紫外区, 会发生光化学反映。
2013-8-27
Coater introduction
2013-8-27
Cleaner introduction
The simple drawing of roller brush & AAjet rinse section
IVO Info Vision
2013-8-27
Cleaner introduction
AAJET
IVO Info Vision
IVO Info Vision
slit Coater
2013-8-27
Coater introduction
IVO Info Vision
Slit Coating
2013-8-27
IVO Info Vision
Exposure Introduction
2013-8-27
Exposure Introduction
Glass
Exposure
PR coating
Develop Etch 2013-8-27
Strip
IVO Info Vision
Photo Process
Photo process: Coating--->Exposure--->Development
Coating:将光阻均匀地涂布于基板表面 Exposure:由紫外线透射光罩将图形转写至光阻表面 Development:利用碱性显影液將紫外线照射的光阻去除以形成图形
2013-8-27
The structure of DNS SK-1100G
IVO Info Vision
30, 730
Out AOIL or Conveyor Rinse AK Out (Sub. Dev. Dry Direct) 1, 2
5,510
In
90° BF turn
5, 910
Postbake
Exposure Introduction
Layout
IVO Info Vision
2013-8-27
Exposure Introduction
MASK(掩膜版)分类
IVO Info Vision
• 亮场掩膜版 • 暗场掩膜版
2013-8-27
Exposure Introduction
IVO Info Vision
2013-8-27
Cleaner introduction