SMT贴片钢网开口方式
元件类型
|
PITCH
|
焊盘宽度
|
焊盘长度
|
开口宽度
|
开口长度
|
模板厚度
|
宽厚比
|
面积比
|
QFP
|
0.635mm
|
0.35mm
|
1.50mm
|
0.30-0.31mm
|
1.45mm
|
0.15-0.18mm
|
1.7-2.1
|
0.69-0.85
|
QFP
|
0.50mm
|
0.254mm
|
1.25mm
|
0.22-0.24mm
|
1.20mm
|
0.12-0.15mm
|
1.5-2.0
|
0.62-0.83
|
元件类型
|
PITCH
|
焊盘宽度
|
焊盘长度
|
开口宽度
|
开口长度
|
模板厚度
|
宽厚比
|
面积比
|
QFP
|
0.43mm
|
0.20mm
|
1.25mm
|
0.19-0.20mm
|
1.20mm
|
0.10-0.12mm
|
1.6-2.0
|
0.68-0.85
|
QFP
|
0.30mm
|
0.18mm
|
1.00mm
|
0.15mm
|
0.95mm
|
0.07-0.10mm
|
1.5-2.1
|
0.65-0.93
|
BGA
|
∮1.27mm
|
∮0. 8mm
|
∮0. 75mm
|
0.15-0.18mm
|
1.0-1.25
|
|||
BGA
|
∮1.0mm
|
∮0.5mm
|
∮0. 48mm
|
0.12-0.15mm
|
0.80-1.0
|
|||
uBGA
|
∮0.8mm
|
∮0.4mm
|
∮0. 40mm
|
0.12-0.15mm
|
0.67-0.83
|
|||
uBGA
|
∮0.8mm
|
∮0.4mm
|
□0. 38mm
|
□0. 38mm
|
0.12-0.15mm
|
0.63-0.79
|
||
uBGA
|
∮0.5mm
|
∮0.25mm
|
□0. 28mm
|
□0. 28mm
|
0.08-0.10mm
|
0.70-0.86
|
||
0402
|
0.5mm
|
0.65mm
|
0.48mm
|
0.635mm
|
0.10-0.12mm
|
1.4-1.37
|
||
0201
|
0.25mm
|
0.40mm
|
0.235mm
|
0.38mm
|
0.08-0.10mm
|
0.73-0.91
|
元件
|
0603
|
0805
|
1206
|
3212
|
直径(d)mm
|
0.36
|
0.55
|
0.8
|
1.0
|