| Electronics > Projects, Designs, and Technical Stuff |
| What are common track pitch/width/spacing etc on very high density boards? |
| (1/2) > >> |
| TheUnnamedNewbie:
Due to the frequency range and research nature of my work, the stuff I do is on specialized technologies for prototyping. I use tiny pitches, laser vias, ENIPIG finishes, and expensive fancy substrates. When I make non-high-frequency PCBs they are usually on your standard cheap-process, often with something like 150um minimum track-width and spacing. But I was wondering what you get in high-volume industry. Seeing how the industry is commonly using 01005 and pushing towards 0201m components in things like laptops, tablets and mobile phones, which have pads on the order of 100um: What kind of pitches and clearance and track width are standard there? What is the cost of such a PCB in ultra-high-volume? |
| nctnico:
Nowadays 0.9mm width/spacing shouldn't be a problem c.q. very costly. |
| KaneTW:
Jlcpcb has 90um track widths. |
| TheUnnamedNewbie:
--- Quote from: KaneTW on January 15, 2020, 01:11:10 pm ---Jlcpcb has 90um track widths. --- End quote --- Is 90um what you can expect in HDI boards for smartphones and laptops? Still seemed rather big to me. I'm used to running 80um or lower and we still struggle with routing. |
| KaneTW:
Not HDI at all, just their default for multi-layer prototypes. Low-cost, Chinese HDI should go down to 60um-ish. |
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