 
            | MOQ: | 1 | 
| Price: | USD 2.99-9.99 PER PIECE | 
| Standard Packaging: | Vacuum | 
| Delivery Period: | 10 working days | 
| Payment Method: | T/T, Western Union | 
| Supply Capacity: | 45000 pieces per month | 
Hybrid PCB | Mixed Material 4-layer PCB Made On 20 mil RO4350B + FR4 With Blind Via
(Printed circuit boards are custom-made products, the picture and parameters shown are just for reference)
Hello everyone,
Continued with last article, today we’re going to talk about the 20mil RO4350B and FR-4 mixed.
Most of the situations are that the high frequency material plays the role of signal transmission. Let’s see the stack-up.

Layer 1 to layer 2 is the core of 20mil (0.508mm) RO4350B high frequency material, the signal transmission lines are on first layer copper, then layer 3 to layer 4 is another core of epoxy glass material. The 2 cores are bonded by a sheet of adhesive (prepreg).
Basic specifications
Base material: RO4350B 0.508 mm + FR4 0.6mm + PP 0.306mm
Layer count: 4 layers
Panel: 75mm x 82mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 70 um/ Inner layer 35 um
Solder mask / Legend: green / white
Final PCB height: 1.6 mm
Standard: IPC 6012 Class 2
Packing: 20 panels are packed for shipment.
Lead time: 10 working days
Shelf life: 6 months

Features and benefits
1) The temperature coefficient of dielectric constant is among the lowest of any circuit board material, making it ideal for temperature sensitive applications;
2) RO4350B exhibits a stable dielectric constant over a broad frequency range. This makes it an ideal substrate for broadband applications;
3) Signal integrity performance improvement over the stack-ups with all FR4 board;
4) ISO9001, ISO14001, IATF16949, UL Certified factory
5) Prototype to mass production capability;
Applications
Mixer, Radar data acquisition converter, Spread spectrum, Duplexer
Parameter and Data Sheet
| PCB SIZE | 125mm x 125mm = 1 type = 1 piece | 
| BOARD TYPE | Multlayer PCB | 
| Number of Layers | 4 Layers | 
| Surface Mount Components | YES | 
| Through Hole Components | YES | 
| LAYER STACKUP | Copper -----Top Layer 0.070mm (2 oz) | 
| RO4350B 0.508 mm | |
| Copper -----Plain 0.035 mm | |
| Prepreg 2113 X 3, 0.306mm | |
| Copper -----Plain 0.035 mm | |
| FR-4 0.6mm | |
| Copper ------- Bottom Layer 0.070mm (2oz) | |
| TECHNOLOGY | |
| Minimum Trace and Space: | 5.5 mil / 7.2 mil | 
| Minimum / Maximum Holes: | 0.4 mm / 5.7 mm | 
| Number of Different Holes: | 15 | 
| Number of Drill Holes: | 172 | 
| Number of Milled Slots: | 0 | 
| Number of Internal Cutouts: | NA | 
| Impedance Control: | N/A | 
| Number of Gold finger: | N/A | 
| BOARD MATERIAL | |
| Glass Epoxy: | RO4350B Tg280℃, er<3.48, Rogers Corp.; FR-4 IT158, ITEQ | 
| Final foil external: | 2.0 oz | 
| Final foil internal: | 1.0 oz | 
| Final height of PCB: | 1.6 mm ±10% | 
| PLATING AND COATING | |
| Surface Finish | Immersion Gold | 
| Solder Mask Apply To: | Both Top and Bottom sides | 
| Solder Mask Color: | Green | 
| Solder Mask Type: | LPI, Taiyo PSR-2000GT600D | 
| CONTOUR/CUTTING | Routing | 
| MARKING | |
| Side of Component Legend | Top and bottom side | 
| Colour of Component Legend | White, IJR-4000 MW300, Taiyo brand | 
| Manufacturer Name or Logo: | Marked on the board in a conductor and leged FREE AREA | 
| 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. | 
 
          | MOQ: | 1 | 
| Price: | USD 2.99-9.99 PER PIECE | 
| Standard Packaging: | Vacuum | 
| Delivery Period: | 10 working days | 
| Payment Method: | T/T, Western Union | 
| Supply Capacity: | 45000 pieces per month | 
Hybrid PCB | Mixed Material 4-layer PCB Made On 20 mil RO4350B + FR4 With Blind Via
(Printed circuit boards are custom-made products, the picture and parameters shown are just for reference)
Hello everyone,
Continued with last article, today we’re going to talk about the 20mil RO4350B and FR-4 mixed.
Most of the situations are that the high frequency material plays the role of signal transmission. Let’s see the stack-up.

Layer 1 to layer 2 is the core of 20mil (0.508mm) RO4350B high frequency material, the signal transmission lines are on first layer copper, then layer 3 to layer 4 is another core of epoxy glass material. The 2 cores are bonded by a sheet of adhesive (prepreg).
Basic specifications
Base material: RO4350B 0.508 mm + FR4 0.6mm + PP 0.306mm
Layer count: 4 layers
Panel: 75mm x 82mm = 1 type = 1 piece
Surface finish: Immersion gold
Copper weight: Outer layer 70 um/ Inner layer 35 um
Solder mask / Legend: green / white
Final PCB height: 1.6 mm
Standard: IPC 6012 Class 2
Packing: 20 panels are packed for shipment.
Lead time: 10 working days
Shelf life: 6 months

Features and benefits
1) The temperature coefficient of dielectric constant is among the lowest of any circuit board material, making it ideal for temperature sensitive applications;
2) RO4350B exhibits a stable dielectric constant over a broad frequency range. This makes it an ideal substrate for broadband applications;
3) Signal integrity performance improvement over the stack-ups with all FR4 board;
4) ISO9001, ISO14001, IATF16949, UL Certified factory
5) Prototype to mass production capability;
Applications
Mixer, Radar data acquisition converter, Spread spectrum, Duplexer
Parameter and Data Sheet
| PCB SIZE | 125mm x 125mm = 1 type = 1 piece | 
| BOARD TYPE | Multlayer PCB | 
| Number of Layers | 4 Layers | 
| Surface Mount Components | YES | 
| Through Hole Components | YES | 
| LAYER STACKUP | Copper -----Top Layer 0.070mm (2 oz) | 
| RO4350B 0.508 mm | |
| Copper -----Plain 0.035 mm | |
| Prepreg 2113 X 3, 0.306mm | |
| Copper -----Plain 0.035 mm | |
| FR-4 0.6mm | |
| Copper ------- Bottom Layer 0.070mm (2oz) | |
| TECHNOLOGY | |
| Minimum Trace and Space: | 5.5 mil / 7.2 mil | 
| Minimum / Maximum Holes: | 0.4 mm / 5.7 mm | 
| Number of Different Holes: | 15 | 
| Number of Drill Holes: | 172 | 
| Number of Milled Slots: | 0 | 
| Number of Internal Cutouts: | NA | 
| Impedance Control: | N/A | 
| Number of Gold finger: | N/A | 
| BOARD MATERIAL | |
| Glass Epoxy: | RO4350B Tg280℃, er<3.48, Rogers Corp.; FR-4 IT158, ITEQ | 
| Final foil external: | 2.0 oz | 
| Final foil internal: | 1.0 oz | 
| Final height of PCB: | 1.6 mm ±10% | 
| PLATING AND COATING | |
| Surface Finish | Immersion Gold | 
| Solder Mask Apply To: | Both Top and Bottom sides | 
| Solder Mask Color: | Green | 
| Solder Mask Type: | LPI, Taiyo PSR-2000GT600D | 
| CONTOUR/CUTTING | Routing | 
| MARKING | |
| Side of Component Legend | Top and bottom side | 
| Colour of Component Legend | White, IJR-4000 MW300, Taiyo brand | 
| Manufacturer Name or Logo: | Marked on the board in a conductor and leged FREE AREA | 
| 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. |