LED焊线瓷嘴各项参数介绍

Tip Diameter
4.6 mil 6.5 mil 8.2 mil
FIX TIP Loop(h) ~ CA
FIX Loop(h) Tip ~ CA
TIP
~ Pad pitch x 1.3
‘OR’ - ‘FA’ 的關係:
OR
FA
OR
FA
Bigger FA Smaller OR
Smaller FA Bigger OR
Free Air Ball
Mashed Ball
Free Air Ball = Mashed Ball:
VolFAB = VolMB VolFAB
VolMB
FABØ Free Air Ball
MBD Mashed Ball Diameter
Capillary 對銲球的影響(H,CD,CA):
OR FA
MBD CD CA(70)
**With
MBD
CD CA(120)
the same CD, H, FAB & WD
Capillary 對魚尾的影響(T,OR&FA):
WD
OR
SL
T
Example
Pitch 5 mil Loop Height - 10.0 mil
Cone Angle
30° 20° 10°
Fine Pitch: H = 1.2WD (min) ~ Pad pitch x 1.3

MBD(min)=CD+10% CD < MBD/1.1
< (BPO -*10µ m)/1.1
Capillary 對弧度的影響(H,IC type):
Hole Size (H):
IC Type影響Wire Feeding
Capillary影響整理:
Capillary選用規則(H,T,CD):

H = WD + 30%±10%
Recommended: H = 1.3WD
For TIP
ppt焊线瓷嘴参数瓷嘴参数焊接参数led嘴说明led焊线焊线瓷焊线瓷嘴SPT Capill源自ry介紹及應用目錄
1.銲針參數介紹 2.銲針對銲球的影響 3.銲針對魚尾的影響 4.銲針對弧度的影響 5.銲針影響整理 6.選用規則
Capillary Parameters
First Bond (Ball Formation):
< (BPO -*10µm)/1.1
*10µm
MBD
clearance includes machine/operator error, capillary tolerance
CD
Chamfer Angle (CA):
Smaller CA - Smaller MBD Bigger CA - Bigger MBD
T
H CD CA
1st Bond (Ball)
Hole Size (H):
H = WD + 30%±10%
Recommended: H = 1.3WD
H
WD
For Fine Pitch: H = 1.2WD (min)
Chamfer Diameter (CD):
MBD(min)=CD+10%
CD < MBD/1.1