Item

Information

Quality Control

The quality of the PCBA is our core concern, VBXB/GreenPath has a mature system such as ISO9001 certified procedure, and various testing methods to ensure manufacturing your PCBA with high quality.

Lead Time

Lead time=PCB manufacturing time + Part preparing time + Assembly time + Flashing&Testing time + Packing time
Generally, we will prepare the parts when manufacturing the PCB. If all parts can be sourced from our local market, the parts will be ready within 7-14 days; if some parts have to be imported from Mouser/digikey/Element14, the preparation of parts will take 10-21 days, but the final preparing time will depend on when the last part is in place. We will start assembling your order within 8-48 hours if all necessary files and the parts are ready.

Parts

Offering all the parts for the PCBA from yourself are recommended. In this case, please send us all the components with BOM file and detailed packing list indicating item number, manufacturer’s part number and quantity in kit. Please contact with your project manager before you shipping the parts to us, the project manager will send you detailed notes.
For turn-key part sourcing service, We help sourcing the components from our local reliable suppliers, and guarantee 100% responsible for the quality of the components, this service can decrease your costs prominently and shorten the lead time. And as stated above, you can also choose which parts to be sourced from our local suppliers and which parts must be from Mouser/Digikey/Element14/ by making a remark in the BOM sheet with Y or N.

Functional testing

Functional testing can make a great help for lowering the defective rate of the PCBA. Due to the complexity of PCBA production, it’s impossible for any machine to have no defectives, especially for prototyping and small batch production. While we can detect and prevent the defectives flowing out through functional testing, it is strongly recommended for your PCBA project. Furthermore, we offer free functional testing service for orders over $2000 and the testing time is no more than 1 minnute for each unit. With the testing, you can receive 100% QC passed boards, that will save you a lot of time and money. For some projects, testing plan is necessary.

Package & Shipping

All PCBAs will be packed with ESD bag/ESD foam to prevent possible static damage, and quality carton boxes will be used to protect your PCBAs during shipping. Also, you can inform us of your packing requirements.

PCB & Stencil

VBXB/GreenPath project manager will check the gerber files and your required specifications for the quoting. The default specification would be 1.6mm thickness/hasl/green. Please check this as you receive the quotation and notify us if you need to alter the specification.
A stencil is used for the SMD components soldering. With the stencil, the SMD components would be easy to solder, and it will be kept in our company for 3 months. Please note that it won’t be shipped with the assembled boards without extra requirement.

Coordinate file

Coordinate file is necessary for machine assembly, it describes the position and orientation of all the surface mount parts, which includes the reference designate, X and Y position, rotation and side of Board (Top or Bottom).

Parts Overage

Proper SMT machine setup and operation requires parts overages, Resistors, Capacitors, Diodes (0603, 0805, 1206, 2225, SOT, SOD, MELF – packages) require a minimum of 50 pieces and have to exceed the required quantity by 30 pieces.
Resistors, Capacitors, Diodes (0201, 0402, miniMelf, miniature packages) require a minimum of 100 pieces have to exceed the required quantity by 50 pieces.
A small number of excess(1-5 pieces based on the total quantity of assemblies) is requested for expensive parts such as IC, BGA, QFP, Connectors, etc., this will ensure smooth assembling and punctual shipping of your PCBA. If you have any question or doubt, please don’t hesitate to contact us.

Panelization

PCB Panelization will make a great help for assembly and testing, so we will panelize your boards acquiescently if you don’t have other requirements, the stencil will match to the panelized PCB.

Back Order managenent

VBXB/GreenPath has a mature solution to manage your back order so as to ensure the correctness and the quality same with previous batchs manufactured in VBXB/GreenPath.

BOM

BOM(billing of materials) shows what parts are needed to assemble the boards, and where these parts should be placed and assembled. We accept the BOM in the format of .xls, xlsx or .csv. Please settle your BOM according to our template, it is very important, a clear BOM can avoid many possible mistakes during assembly.

Customer satisfaction

We cherish every relationship with customers, and making every customer satisfy with our services is our goal. VBXB/GreenPath is 100% responsible for the mistakes/faults in the production. If there is indeed some problems in our production resulting in your lost, you can contact your project manager or service@greenpath-tec.com to request re-make or even refund.
We are glad to hear your suggestions/complains if not satisfied, and we appreciate your recommendations to your friends with your satisfaction.