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Part 4: Techniques for Manufacturing PCBA
There are many techniques for manufacturing PCBs. These include
preparation of the board surface, component placement, soldering,
cleaning, inspection, and testing. PCBONLINE has been offering a
variety of techniques for manufacturing PCBs in order to meet
unique customer demands. Here are two usual PCB assembly techniques
in use.
YScircuit HDI PCB manufacturing capabilities overview | |
Feature | capabilities |
Layer Count | 4-60L |
Available HDI PCB Technology | 1+N+1 |
2+N+2 | |
3+N+3 | |
4+N+4 | |
5+N+5 | |
Any layer | |
Thickness | 0.3mm-6mm |
Minimum line Width and Space | 0.05mm/0.05mm(2mil/2mil) |
BGA PITCH | 0.35mm |
Min laser Drilled Size | 0.075mm(3nil) |
Min mechanical Drilled Size | 0.15mm(6mil) |
Aspect Ratio for laser hole | 0.9:1 |
Aspect Ratio for through hole | 16:1 |
Surface Finish | HASL, Lead free HASL,ENIG,Immersion Tin, OSP, Immersion Silver, Gold Finger, Electroplating Hard Gold, Selective |
Via Fill Option | The via is plated and filled with either conductive or non-conductive epoxy then capped and plated over |
Copper filled, silver filled | |
Laser via copper plated shut | |
Registration | ±4mil |
Solder Mask | Green, Red, Yellow, Blue, White, Black, Purple, Matte Black, Matte
green.etc. |
layer/m² | S<1㎡ | S<3㎡ | S<6㎡ | S<10㎡ | S<13㎡ | S<16㎡ | S<20㎡ | S<30㎡ | S<40㎡ | S<50㎡ | S<65㎡ | S<85㎡ | S<100㎡ |
1L | 4wds | 6wds | 7wds | 7wds | 9wds | 9wds | 10wds | 10wds | 10wds | 12wds | 14wds | 15wds | 16wds |
2L | 4wds | 6wds | 9wds | 9wds | 11wds | 12wds | 13wds | 13wds | 15wds | 15wds | 15wds | 15wds | 18wds |
4L | 6wds | 8wds | 12wds | 12wds | 14wds | 14wds | 14wds | 14wds | 15wds | 20wds | 25wds | 25wds | 28wds |
6L | 7wds | 9wds | 13wds | 13wds | 17wds | 18wds | 20wds | 22wds | 24wds | 25wds | 26wds | 28wds | 30wds |
8L | 9wds | 12wds | 15wds | 18wds | 20wds | 20wds | 22wds | 24wds | 26wds | 27wds | 28wds | 30wds | 30wds |
10L | 10wds | 13wds | 17wds | 18wds | 20wds | 20wds | 22wds | 24wds | 26wds | 27wds | 28wds | 30wds | 30wds |
12L | 10wds | 15wds | 17wds | 18wds | 20wds | 20wds | 22wds | 24wds | 26wds | 27wds | 28wds | 30wds | 30wds |
14L | 10wds | 16wds | 17wds | 18wds | 20wds | 20wds | 22wds | 24wds | 26wds | 27wds | 28wds | 30wds | 30wds |
16L | 10wds | 16wds | 17wds | 18wds | 20wds | 20wds | 22wds | 24wds | 26wds | 27wds | 28wds | 30wds | 30wds |