BGA291 (1620) solid state chip to NVME solid state adapter board

This project is a derivative branch of the CFExpress card adapter board project. If you are interested in the CFExpress card adapter board, you can check it out by clicking on the portal.
 
——————————————Introduction——————————————
This is a board that can convert BGA291 particles into normal NVME solid-state hard drives. This particle is commonly found in new Surface onboard solid-state drives, etc. The cost performance is average, but the good thing is that it has high integration, small particles and simple periphery.
This board does not lead out the LED indicator part because it does not require light pollution. A version with an LED indicator will be added later.
This board can also be used to replace some other solid-state drives using BGA291 particles. After the DCDC is damaged or the board is damaged, the particles can be attached to this board for continued use, or the Surface onboard particle data can be restored for use.
The board provides versions with lengths of 2242, 2260, and 2280, all of which are single-sided components. The 2230 has not been drawn yet. If there is more demand later, it will be added, but the DCDC part will be moved to the back of the PCB.
There must be some irregularities or unreasonable places in the board design. If there is anything wrong, please be gentle. I sincerely accept kind criticism and suggestions here.
If this project is helpful to you, or you think it is good, you can click to collect and like it ;-)
Communication group: 824707444 (add group note LiChuang Open Source Plaza)
 
The actual picture is at the end, and you need to see the picture directly. Scroll to the end
 
——————————————Precautions and other notes——————————————
Please choose 0.8mm thickness for board making.
Do not purchase materials according to the BOM exported by PCB, please purchase materials according to the BOM information in the provided picture. It will be added in the comment area that
the bottom of the board is currently compatible with Toshiba and INTEL particles. There are several types of Hynix and Samsung power supply definitions that are more troublesome.
The steel mesh of solid particles has not been drawn yet. Search BGA291 steel mesh on Taobao to find it.
 
 
——————————————Description and update log of each version——————————————
V1.0: The initial version, the board has been tested, there should be no more changes if there is no problem.
V1.0 2230: The 2230 length version has been drawn, but the board has not been tested yet (left on 2022-5-19)
 
If you have a branch based on this project, you can contact me and put your project portal in this column.
——————————————BOM diagram——————————————
Not yet added,
just a rough idea, the 3.3v input part of the capacitor is optional, I pasted 22uf
dcdc output I have 10uf x 2 dcdc feedback resistors for each channel
, the mp2143 specification book has it, r1 r2 can be pasted according to the resistance value provided in the specification book
The pcie signal line capacitor is 220nf 0402 specification
inductor buy 1uH, NR4018 specification
 
 
 
——————————————Physical picture display————————————————