To-order manufacturing process
Step 1. Customer visit or telephone visit
Step 2. Customer PCB substrate file provision (format Gerber Files)
Step 3: Lu Yu Production Evaluation and Internal Audit
Step 4. Confirm the sample processing process, packaging and delivery method
Step 5. Provide quotation
Step 6. Sample trial production and sample acknowledgment
Step 7. Approval of customer sample approval letter
Step 8, mass production orders
There are complex processes in the PCB manufacturing. Not all manufacturers have the entire process equipment in-house. Does Luyuh must outsource some production processes?

Finished product surface treatment: ENIG (Electroless Nickel Immersion Gold), HASL, OSP (ENTEK) and copper plating (PTH) must be outsourced; other process can be produced in-house..

PCB Inspection Specifications and Acceptance Levels

If no PCB inspection specification is provided, follow Luyu CS05010103 Printed Circuit Board Quality Inspection Specification

For items not marked in the Luyu PCB specification, the international standard IPC-A600 Printed Circuit Board Acceptance Specification: Class 1 & Class 2 is adopted

Note: The special requirements of individual models are based on the drawing requirements of individual models

Lu Yu's sample trial production
process:
1. General sample => After editing the LY RD file, send it to the customer for confirmation
Get customer confirmation => release sample preparation
2. Confirmation board sample before mass production
=>After editing the LY RD file, send it to the customer for confirmation;
Get customer confirmation => release the sample preparation, and submit a sample acknowledgment letter
Mass production: The sample approval letter is confirmed by the customer before being introduced into the mass production process
Note: Except for emergency materials, direct mass production can be adopted for confirmation
Lu Yu's Letter of Acknowledgment
Accept the format required by the customer, either in electronic form or in written form
Electronic file method: files are sent by Email
Written physical form: documents and physical boards, the customer has no special requirements, and Luyu’s standard format is adopted; two copies are adopted, one of which must be signed back and kept by Luyu
put forward the timing;
Final version samples or trial production before mass production
or
The first production batches for direct mass production are presented together
How is the model number of Luyu distinguished? How to mark the modified version extension? How to mark the common mode production model?
Single-panel CNC production mode (without opening the mold): H starts
Single panel mold opening production mode: L starts
Double panel: DS starts
Modified Extended Mark
After DS-5844 is modified, DS-5844-01 is modified, and then DS-5844-02 is modified, and so on
Marking of common mold production models
If DS-5844 die-opening production
The models that share this mold punching type are DS-5844A, DS-5844B...
Modification and extension of common mode
After DS-5844A is modified, DS-5844A01 is modified, and then DS-5844A02 is modified, and so on