0.4mm pitch BGA circuit board is a bit difficult to do ,but we can make 0.4mm CSP, even,0.38mm CSP PCB ,we can make now.

0.4mm pitch BGA, means the space from BGA ball to another BGA ball is 0.4mm. This PCB is very small,10*10mm, and blind vias from L1-L2,it is 4 layer PCB ,0.6mm, half-hole plating.min hole 0.15mm,via in pad, 0.38mm pitch BGA. All the above features, we can see from below image.

Actually,we tried to made with board with standard blind PCB technology,but  it is too difficult due to all difficult features put together.At last,we have to make this PCB with HDI technology and drill the blind vias with laser.that is very perfect.

Such HDI PCB with only 0.38mm pitch BGA,the via in pad is required.We can make such HDI boards in 8-10 days.

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Storm Circuit focus on top quality ,quick turn  HDI PCB and turnkey service without any MOQ .Our products include :1-30 layers PCB fabrication ,1-6 layers FPC manufacturing,2-10 layers rigid-flex board manufacturing,components procurement , ,stencil and cables which used in Telecommunication ,Industrial control, Power supply,Consumer Electronics lighting equipments,home appliances,Auto and medicine .our products are RoHS compliant. Whether your PCBs require soft gold, hard gold, immersion gold, immersion silver, immersion Tin, entek, hot-air leveling and lead-free HAL. We can also meet your high-standard requirements such as IPC standard III, 14-layer, blind via-hole and impedence control PCBs, as well as 10 oz  heavy copper PCBs,High frequency PCB,Rogers,Arlon materials. Our clients rely on us for many years. Storm Circuit offers quick-turn PCB prototypes in five days for Double-Sided PCB. Express orders will be shipped out in 3 days for 2 layer board, even 48 hours. 4-6 layer boards can be dispatched in 3 days. Urgent orders get special attention and quick delivery is guaranteed,. Small and medium sized orders are accepted. We have our own DHL&TNT account, unlike other competitors use agent or forwarder, we can dispatch goods on the current day . Under DHL`s support, 1 day to USA, 1 day to Asia (Singapore, Malaysia,TaiWan,Japan),2-3 days to Europe/Australia/Africa. So ,our express service is really express, it is possible for you to get correct prototypes within 2 day

Storm Circuit offers the best quick turn boards with very competitive price for prototypes to volume in 1-10 days.see our Quick Turn PCB.

HDI,1+N+1, Standard and quick turn lead time for prototypes. (<1 sq meter).
2+N+2 ,3+N+3. PCB gerber file is required to get correct cost and lead time.