What to include in a RO4350B PCB RFQ
A useful quotation request includes fabrication data, board dimensions, quantity, layer count, exact material construction, finish, impedance requirements and test scope
MANUFACTURING
Manufacturing
Prepare fabrication data, define acceptance tests and plan the build.
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Gerber and drill data for RO4350B fabrication
The fabrication package should describe all copper, mask, legend, outline and drilling operations consistently
RO4350B impedance coupons and acceptance
An impedance coupon is useful when it represents the production construction and a defined measurement method
Drilling RO4350B: process decisions
Drilling parameters depend on tool diameter, stack height, entry and backing materials, machine condition and the exact laminate system
Plated through holes in RO4350B boards
Reliable plated holes depend on preparation, copper deposition, geometry and thermal exposure
RO4350B multilayer lamination planning
A multilayer lamination cycle belongs to the complete material and bonding system
Selecting a surface finish for RO4350B
Surface finish selection balances RF loss, solderability, assembly, storage and reliability requirements
ENIG on RO4350B RF boards
ENIG offers a common solderable finish, but its nickel layer can affect high-frequency conductor behavior
Immersion silver on RO4350B
Immersion silver is one option for exposed RF conductors and solderable pads
OSP and RO4350B assembly planning
Organic solderability preservative can be considered where the assembly process and exposed-copper requirements support it
Etch tolerance and RO4350B impedance
Etching changes the realized width and sidewall shape of a conductor
Panelizing RO4350B PCBs
Panel yield depends on usable panel area, rails, board spacing, coupons, tooling and routing strategy
Assembling RO4350B PCBs
Assembly planning must account for the full board and component system: finish, copper distribution, moisture exposure, thermal mass, package limits and mechanical support
Testing a fabricated RO4350B PCB
A complete test plan separates bare-board connectivity, impedance control and RF functional performance
Moving RO4350B from prototype to production
A successful prototype establishes feasibility, but production requires repeatability across lots, panels and process conditions
What drives RO4350B PCB fabrication cost?
Material use, layer construction, feature limits, plating, finish, testing, panel yield and schedule all affect cost
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