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4 Layer FR4 PCB Production Record #FR4-20260605-042

FR4 PCB 4 Layers HASL Lead Free Prototype
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PCB Specifications

Parameter Value Parameter Value
PCB Type FR4 PCB Quantity 5 pcs
Layers 4 Layers Board Type Single PCB
Dimensions 65 x 100 mm Copper Weight 1oz
Thickness 1.6 mm Min Track / Spacing 6/6mil↑
Surface Finish HASL Lead Free Min Hole Size 0.5mm
Solder Mask Green Silkscreen White
Stack-up Default Impedance Control No

Manufacturing Timeline

Order Created
Jun 03 14:06
Files Ready
Engineering Review Completed
Jun 03 14:13
Payment down
Jun 03 15:24
Production Started
Jun 03 15:28
Production Completed
Jun 05 22:37
Progress: 0/6
Engineering Review time: 8 min
Production time: 2.3d

Logistics Information

Production Completed→Shipping : 0.6 h
Carrier
FedEx IP
Destination
GEORGIA
Shipping Method
Express Air
Shipping Time
Jun 05 23:09

Key Manufacturing Processes

01
Engineering Review
02
Material Preparation
03
Inner Layer Imaging
04
Circuit Imaging & Etching
05
Layer Stack Alignment
06
High Pressure Lamination
07
Solder Mask Application
08
Molten Solder Coating
09
Hot Air Leveling
10
Electrical Testing

Manufacturing Summary

These five standard 4-layer FR4 PCBs were produced as individual boards measuring 65 × 100 mm with 1.6 mm thickness and 1 oz copper weight. The design used conventional 6/6 mil trace and spacing together with 0.5 mm minimum hole size, green soldermask, and white silkscreen. HASL Lead Free surface finish was applied to deliver consistent solderability for standard assembly processes.

 

Manufacturing began with engineering review and material preparation, followed by inner layer imaging, circuit etching, layer stack alignment, and high pressure lamination. Solder mask application, molten solder coating, and hot air leveling were then completed under controlled parameters to maintain uniform coating thickness and pad definition across the batch.

 

Final electrical testing verified continuity and isolation on every board, with all five units passing on first inspection. The entire order moved through production in 2.3 days, confirming repeatable quality for this low-volume conventional multilayer specification.

Real Production Records

Order ID PCB Type Layers Dimensions Solder Mask Surface Finish Quantity Action
FR4-20260628-010 FR4 PCB 2 60 x 120 Green HASL Lead Free 5 View detail
FR4-20260619-010 FR4 PCB 2 121 x 121 Green HASL Lead Free 50 View detail
FR4-20260618-018 FR4 PCB 2 54.74 x 106.93 Green HASL Lead Free 5 View detail

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