4 Layer High Frequency PCB Built On RO4350B With Blind Via and
Immersion Gold
(PCB’s are custom-made products, the picture and parameters shown
are just for reference)
General Description
This is a type of 4-layer HDI high frequency PCB circuit board
built on RO4350B with RO4450B prepreg for the application of radar
RF board. It's a multilayer layer RF PCB board at 1.0 mm thick with
immersion gold finish and solder mask and silkscreen. This board
contains blind via from top layer to inner 1, top layer to inner 3.
Since it's asymmetric buildup, 1.2% warpage is allowed. It's
fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 20
boards are packed for shipment.
Features and benefits
The temperature coefficient of dielectric constant is among the
lowest of any circuit board material, making it ideal for
temperature sensitive applications.
Reducing signal loss in high frequency application meets the
development needs of communication technology.
Excellent high frequency performance due to low dielectric
tolerance and loss.
Gold has high solderability, no stressing of circuit boards and
less contamination of PCB surface.
Engineering design prevents problems from occurring in
pre-production.
100% tests inclusive of electrical test and AOI inspection.
Fast and flexible to save the time of production from prototype to
standard production
Great customer service
UL recognized and RoHS Directive-compliant
Application
RF module, Power splitter, Low Noise Block, 3G antenna
Parameter and data sheet
| PCB SIZE | 98.02 x 101.02 mm =1up |
| BOARD TYPE | HDI PCB, High frequency PCB |
| Number of Layers | 4 layers |
| Surface Mount Components | YES |
| Through Hole Components | YES |
| LAYER STACKUP | copper ------- 35um(1 oz)+plate TOP layer |
| RO4350B 6.6mil |
| Inner Layer 1, 18um (0.5oz) |
| Dielectric RO4450B 4mil x2 |
| Inner Layer 2, 18um (0.5oz) |
| Dielectric RO4350B 20mil |
| copper ------- 35um(1oz) + plate BOT Layer |
| TECHNOLOGY | |
| Minimum Trace and Space: | 5 mil / 4.9 mil |
| Minimum / Maximum Holes: | 0.3 mm / 5.5 mm |
| Number of Different Holes: | 10 |
| Number of Drill Holes: | 125 |
| Number of Milled Slots: | 0 |
| Number of Internal Cutouts: | 0 |
| Impedance Control: | no |
| Number of Gold finger: | 0 |
| BOARD MATERIAL | |
| Glass Epoxy: | RO4350B Tg280℃, er<3.48, Rogers Corp. |
| Final foil external: | 1.5 oz |
| Final foil internal: | 0.5 oz |
| Final height of PCB: | 1.0 mm ±10% |
| PLATING AND COATING | |
| Surface Finish | Immersion gold, 35% |
| Solder Mask Apply To: | TOP, 12micron Minimum |
| Solder Mask Color: | Green, PSR-2000GT600D, Taiyo Supplied. |
| Solder Mask Type: | LPSM |
| CONTOUR/CUTTING | CNC Routing |
| MARKING | |
| Side of Component Legend | TOP |
| 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 0.3mm. Blind via L1-L2,
L1-L3 |
| 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. |
Why choose us?
1) Focus on your core competencies: We’ve deeply known it is full
of fierce competition for our customers in the market. You can
focus on such important competencies as research and development,
sales and marketing based on our professional performance and
skilled services that exceeding your expectation.
2) Cutting-edge technology: it is rational for a small and
medium-sized customer to hanker after the latest equipment and
manufacturing expertise for its PCBs. By the partnerships
with Bicheng PCB, you gain access to reach your expectation with
our 3 factory bases with over 26,000 square meters.
4) Save the cost of production: Production cost is one of the key
points of our customers’ product competitiveness. Bicheng PCB have
been striving to reduce its manufacturing cost from equipment
introduce, worker training and technology improvement to increase
their profitability. Customers are satisfied with our cost savings
but without quality loss.
5) Avoid hassle: It’s an upset matter when quality problem hassling
you. Bicheng engineering design prevents problem from occurring in
pre-production. You will not get headache with Bicheng prototypes,
small orders and volume production. Our rate of customer complaint
is less than 1% and will be solved satisfactory.
6) Save time: Market requires the products updating quickly.
Bicheng PCB always works fast and flexible to save the time of
production from prototype to standard production,
quick turn-around or scheduled deliveries.
7) An excellent team: Bicheng is trustworthy partner with passion,
discipline, responsibility and honesty. We have a team of
experienced sales persons and skilled customer services. Do not
change your supplier. If change is must, Bicheng is the right one
for you.
