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Rigid-Flex PCB Manufacturing | Rigid-Flex PCB Manufacturer - Kingsignal

What is a Rigid-Flex PCB

Rigid-Flex PCBs integrate the robustness of rigid PCBs with the adaptability of flexible circuits, allowing for dynamic electronic designs that fit into tight spaces or require complex shapes. This technology facilitates more compact devices by eliminating the need for multiple connectors and reduces the risk of connection failures, enhancing product reliability. They’re particularly beneficial in industries where device miniaturization and reliability are critical, such as aerospace, medical, and consumer electronics. Rigid-Flex PCBs represent a significant advancement in PCB design, offering a versatile solution for challenging engineering requirements.

Rigid-Flex vs. Rigid PCBs

Rigid-Flex PCBs offer a design complexity that goes beyond traditional rigid boards by utilizing 3D space, allowing designers to fold, twist, and roll the flexible parts to fit specific shapes within a device’s final form. This capability for three-dimensional design provides greater spatial efficiency compared to rigid PCBs, which are limited to a flat, two-dimensional plane. Rigid-Flex technology thus enables more innovative and space-efficient layouts, making it ideal for applications where space is at a premium and flexibility is required.

Unveiling Kingsignal’s Rigid-Flex PCB Manufacturing Excellence

Empowering your innovations with our advanced Rigid-Flex PCB manufacturing capabilities, where precision meets flexibility

Surface Finishes:

  • ENIG
  • Electric gold
  • IM-Ag
  • Electric Ag
  • HASL
  • HASL-LF
  • IM-Sn
  • Electric Sn
  • OSP
  • Caborn
  • PtNI-Pd-AU

Standard flex materials:

  • Polyimide (Kapton) 0.5 mil to 5 mils (.012mm – .127mm)
  • Adhesiveless copper clad base material 1 mil to 5 mils
  • Flame retardant laminate, base material, and Coverlay
  • High performance epoxy laminate and prepreg
  • High performance polyimide laminate and prepreg
  • UL and RoHS compliant material on request
  • High Tg FR4 (170+ Tg), polyimide (260+ Tg)

PCB attributes

Rigid-flexFlex
Min Layer Count11
Max Layer Count3212
Min Core thickness.002" (.051 mm).001" (.025 mm)
Max Finished Copper Weight (I/L)3 oz (89 ml)2 oz (59 ml)
Max Finished Copper thickness (O/L)9 micron (.009 mm) (only for O/L)12 micron (.012 mm)
Max Panel Size12x1812x18
Smallest Mechanical Drill Diameter.0071" (.180 mm).0079" (.201 mm)
Smallest Laser Drill Diameter.005" (.127 mm)No
Min Finished Hole Size.006" (.152 mm).006" (.152 mm)
Max through Hole Aspect Ratio10:110:1
Max Blind Via Aspect Ratio.75:1.75:1
Min Trace and Space≥ .0035"(.089 mm)(rigid)≥ .0035"(.089 mm)
Min Pad Size for Test.005" (.127 mm) (rigid).016" (.406 mm)
Process Pad DiameterD + .014" (.356 mm) (1-mil (.025 mm) annular ring)D + .014" (.356 mm) (1-mil (.025 mm) annular ring)
Stacked ViasNoNo
Min Wire Bond Pad Size> .006" (.152 mm)> .006" (.152 mm)
Controlled Impedance Tolerance5%10%
Solder Mask RegistrationWithin .002" (.051 mm)Within .002" (.051 mm)
Solder Mask Feature Tolerance.001" (.025 mm).001" (.025 mm)
Solder Mask Min Dam Size.001" (.025 mm).004" (.102 mm)
Min Diameter Route Cutter Available.024" (.610 mm).019" (.483 mm)
Mechanical Routed Part Size Tolerance.010" (.254 mm).003" (.076 mm)
Bow and Twist ToleranceAs per specN/A
Thickness Tolerance10%+/- .002" (.051 mm)
Sequential Laminations2N/A
Buried ViasYesYes
Blind ViasYesYes
Conductive Filled ViasYesNo
Non Conductive Filled ViasYesNo

Surface finishes

Rigid-flexFlex
HASL (Vertical or Horizontal)YesYes
Lead Free HASLYesYes
OSP (Shikoku F2)YesYes
OSP (Entek)YesYes
ENIG (Electroless Nickel/Immersion Gold)YesYes
Immersion SilverYesYes
Immersion White TinNONO
Tin NickelNONO
Electrolytic Soft GoldYesYes
Electrolytic Hard GoldYesYes
Selective GoldYesYes

Solder mask colors

Rigid-flexFlex
AmberYesYes
GreenYesYes
BlackYesNo
RedYesNo
BlueYesNo
YellowYesNo
WhiteYesNo
ClearYesNo
Bright WhiteYesNo
PurpleYesNo

Legend

Rigid-flexFlex
WhiteYesYes

Fab

Rigid-flexFlex
Routed ArrayYesYes
V Score, Edge to Copper.01" (.254 mm).002" (.051 mm)
V Score AnglesYesNo
CountersinkYesYes
CounterboreYesYes
BevelYesYes
MillingYesYes
Edge CastellationYesYes
Edge PlatingYesYes
HeatsinksNoNo

Electrical test

Rigid-flexFlex
10 VoltYesYes
40 Volt (Burn-In Boards)YesYes
250 VoltYesYes
500 VoltYesYes

Laminate materials

Rigid-flexFlex
Flexible PoyimideYesYes
Arlon 85NTNoNo
BergquistNoNo
Hybrid ConstructionsYesYes
Isola FR406YesYes
Isola FR406YesYes
Isola FR408 HRYesYes
Isola P95YesYes
Isola P96YesYes
Iteq IT180YesYes
Panasonic R1766YesYes
Panasonic R1755YesYes
Panasonic MegtronYesYes
Nelco N4000-13YesYes
Nelco N4000-29YesYes
Nelco BT N5000YesYes
Nelco N7000-2YesYes
No Flow PrepregYesYes
Isola 370HRYesYes
Isola 370HRYesYes
Polyclad GetekNoNo
PSA Bond FilmYesYes
Rogers 3000 SeriesNoNo
Rogers R4000 SeriesNoNo
Rogers 5000 SeriesNoNo
Rogers 6000 SeriesNoNo
Rogers TMMNoNo

Available reports

Rigid-flexFlex
MicrosectionYesYes
SolderabilityYesYes
X-Ray FluorescenceYesYes
Ionic ContaminationYesYes
Time Domain Reflectometry Test (TDR)YesYes
FAIYesYes
Certificate of ComplianceYesYes

UL

Rigid-flexFlex
94VOYesYes

PCB classifications mil-spec

Rigid-flexFlex
MIL-PRF-55110NoNo
MIL-PRF-31032/1NoNo
MIL-PRF-31032/2NoNo
IPC 6012, Class 1, 2 and 3YesYes
ISO 9001:2015YesYes
ISO 13485:2016YesYes

Showcasing Our Rigid-Flex PCB Innovations

Rigid-Flex PCB Applications Unveiled

Rigid-Flex PCBs are integral in sectors demanding compact, efficient designs. Their unique structure supports innovations in wearable tech, medical devices, and aerospace, allowing for devices that bend, fold, or curve. This adaptability is crucial for modern, sophisticated electronics, pushing the envelope in design and functionality.

Moreover, consumer electronics and automotive industries benefit significantly from Rigid-Flex PCBs. They enable sleeker, more reliable products by minimizing space and enhancing durability. This technology’s role is pivotal in developing future electronics, from smart wearables to advanced automotive systems, demonstrating its vast application spectrum.

Mastery Behind Rigid-Flex PCB Technology and Production

Rigid-Flex PCB technology combines the durability of