Bicheng Technologies Limited
M4, TC350
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4 Layer High Frequency PCB Built On 2 Cores of 20mil RO4350B with Back Drill for GPS Tracker
(Printed circuit boards are custom-made products, the picture and parameters shown are just for reference)
Hello Everyone,
Warm greetings!
We are excited to introduce a specialized 4-Layer Rogers PCB designed using two cores of 0.508mm (20mil)
RO4350B for a GPS tracker application. This board incorporates back drilling technology to achieve "blind vias"
effectively, enhancing signal integrity and minimizing noise interference. Please refer to the stack-up below for
details.
Back drilling plays a crucial role in reducing noise interference and improving signal integrity. By successfully
implementing back drilling, we have simplified the PCB fabrication process and eliminated the need for buried
/blind via techniques.
Specifications:
Features and Benefits:
Applications:
This PCB design offers exceptional high-frequency performance, thermal stability, noise reduction
capabilities, and is manufactured in compliance with industry-leading standards. Its versatile applications
make it an ideal choice for various electronic devices requiring reliable signal transmission and interference
mitigation.
Parameter and data sheet
| PCB SIZE | 70mm x 125mm = 1 piece |
| BOARD TYPE | Multlayer PCB |
| Number of Layers | 4 Layers |
| Surface Mount Components | YES |
| Through Hole Components | YES |
| LAYER STACKUP | Copper -----Signal 18um(0.5 oz)+plate TOP layer |
| RO4350B 0.508 mm | |
| Copper -----Plain 0.018 mm | |
| Prepreg RO4450F X 3, 0.305mm | |
| Copper ----- Plain 0.018 mm | |
| RO4350B 0.508 mm | |
| Copper ------- 18um(0.5oz) + plate BOT Layer | |
| TECHNOLOGY | |
| Minimum Trace and Space: | 4 mil / 5 mil |
| Minimum / Maximum Holes: | 0.4 mm / 5.6 mm |
| Number of Different Holes: | 12 |
| Number of Drill Holes: | 121 |
| Number of Milled Slots: | 0 |
| Number of Internal Cutouts: | NA |
| Impedance Control: | N/A |
| Number of Gold finger: | N/A |
| BOARD MATERIAL | |
| Base Material: | RO4350B Tg280℃, er<3.48, Rogers Corp. |
| Final foil external: | 1 oz |
| Final foil internal: | 0.5 oz |
| Final height of PCB: | 1.42 mm ±10% |
| PLATING AND COATING | |
| Surface Finish | Immersion gold |
| Solder Mask Apply To: | N/A |
| Solder Mask Color: | N/A |
| Solder Mask Type: | N/A |
| CONTOUR/CUTTING | Routing |
| MARKING | |
| Side of Component Legend | N/A |
| Colour of Component Legend | N/A |
| Manufacturer Name or Logo: | N/A |
| VIA | Plated through hole(PTH), minimum size 0.4mm. |
| FLAMIBILITY RATING | UL 94-V0 Approval MIN. |
| DIMENSION TOLERANCE | |
| Outline dimension: | 0.0059" |
| Board plating: | 0.0029" |
| Drill tolerance: | 0.002" |
| TEST | 100% Electrical Test prior shipment |
| TYPE OF ARTWORK TO BE SUPPLIED | email file, Gerber RS-274-X, PCBDOC etc |
| SERVICE AREA | Worldwide, Globally. |