Rigid Flex PCB

current location：Home » Rigid-Flex PCB » Rigid Flex PCB

prevnext

Rigid Flex PCB

The birth and development of FPC and PCB gave birth to the new product Rigid Flex PCB. Therefore, Rigid Flex PCB is a flexible circuit board and a rigid circuit board. After pressing and other processes, they are combined according to relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.

Email：pcba13@fastpcba.cn

Basic introduction to Rigid Flex PCB
The birth and development of FPC and PCB gave birth to the new product Rigid Flex PCB. Therefore, Rigid Flex PCB is a flexible circuit board and a rigid circuit board. After pressing and other processes, they are combined according to relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.

Rigid Flex PCB production process
Because Rigid Flex PCB is a combination of FPC and PCB, the production of Rigid Flex PCB should have both FPC production equipment and PCB production equipment. First, the electronic engineer draws the circuit and shape of the Rigid Flex PCB according to the requirements, and then sends it to the factory that can produce the Rigid Flex PCB. The CAM engineer processes and plans the relevant documents, and then arranges the FPC production line to produce the required FPC , PCB production line produces PCB. After these two Rigid Flex PCBs come out, in accordance with the planning requirements of the electronic engineer, the FPC and PCB are seamlessly pressed through a pressing machine, and then a series of detailed links are finally made into Rigid Flex. PCB. A very important link, because Rigid Flex Circuit Boards is difficult and there are many detailed problems. Before shipment, a full inspection is generally required. Because of its high value, it will prevent the supply and demand parties from causing related profit losses.

Rigid Flex PCBs Types

Rigid Flex PCB

Rigid-Flex PCB Capability
Items	Type	Normal Manufacturing Capability
Standard	Inspection Std.	IPC-6013 Class 2, IPC-A-600G Class 2, IPC-6013 Class 3
Standard	Test Std.	IPC-TM-650,GB/T4677-2002
Material	DuPont	AL9111R, AP9121R, AP9131R, AP8525R
	Panasonic	R-F775 11RB-M, R-F775 22RB-M, R-F775 21RB-M
	Taiflex	NDIR050513HJY,IDIR051013HJY,NDIR100520HJY,THKD200520
	No Flow PP	VT-47N,VT-901
	CCL	ITEQ IT180A , ShengYi 1000-2,N4000-13, Rogers4350B,4003C
Process capacity	Layers	2-20
	Thickness	8-118mil
	Max dimension	15.74X28 Inch
	Min precision Of Dim	±4mil
	Min diameter of holes	4mil (Laser drill); 6mil(mechanical drill)
	Aspect ratio	16:1
	Min trace width/space wtidth of outer	3.0/3.0mil
	Min trace width/space wtidth of outer	3.5/3.5mil
	wtidth of outer layer(2OZ finished	5/5mil
	Min trace width/space wtidth of inner	3.5/3.5mil
	Min trace width/space wtidth of out layer(1OZ	4/4mil
	Min trace width/space wtidth of gridding circr	5/5mil
	Min trace width/space wtidth of out layer(2OZ finishedcopper,Flex layer on top or bottom)	5/5mil（1/3、1/2oz copper）；6.5/5mil(1oz copper)；8/5.5mil （2oz copper）；
	Min distance Between drilling&conductor（via holes）	7mil(2layers);9mil(3~6Llayers);11mil(≥7layers)
	Min distance Between drilling&conductor(com ponent holes)	10mil(2layers);12mil(3~6Llayers);14mil(≥7layers)
	Min distance Between drilling&conductor(burie d &blind holes)	7mil
	Min ring of inner layer(via holes)	5mil(≤6 Layers) ；8mil(＞8Layers)

	Min ring of inner layer(component holes)	8mil(≤6Layers) ；11mil(＞8Layers)
	coalescent location of rigid and flex	1mm
	HDI board	1+n+1
Surface treatment	Plating Gold(Hard gold)	Normal:0.25-0.76um;Hard gold:0.76-2um；
	ENIG	Ni:3--8um,Au:0.05-0.1um
	Immersion Tin	0.80-1.20um
	Immersion Silver	0.10-0.30um
	0SP	0.15-0.30um
	HASL	2-40um
	HASL lead free	2-40um
	Silver ink	10-25um
	Selective surface finishing	ENIG+GOLD Finger; ENIG+HASL; ENIG+OSP; Soft gold+ GOLD Finger; Flash gold+HASL; immersion Tin+gold finger; Immersion sliver+gold finger; OSP +gold finger; Silver ink+Plating gold; Silver ink+ENIG.
Routing	Outline Tol.	+/-4mil

Rigid Flex PCB advantages and disadvantages

Advantages: Rigid Flex PCB has the characteristics of FPC and PCB at the same time. Therefore, it can be used in some products with special requirements. It has both a certain flexible area and a certain rigid area, which can save the internal space of the product. Reducing the volume of the finished product and improving the performance of the product are of great help.

Disadvantages: Rigid-flex PCB has many production processes, difficult production, low yield rate, and more materials and labor. Therefore, its price is relatively expensive and the production cycle is relatively long.

Rigid Flex PCB application areas

The characteristics of Rigid-flex PCB determine that its application areas cover all application areas of FPC in PCB, such as:

mobile phone

Button board and side buttons, etc.

Computer and LCD screen

Motherboard and display screen, etc.

CD Walkman

Disk Drive

NOTEBOOK.

Latest use

Hard disk drive (HDD, hard disk drive) suspension circuit (Su ensi.N cireuit) and xe package board and other components.

Rigid Flex Circuit Boards process flow

1. Material selection

2. Production process and control of key parts

2.1 Production process

2.2 Graphic transfer of inner monolithic

2.3 Multi-layer positioning of flexible materials

2.4 Laminating

2.5 Drilling

2.6 De-drilling, convex erosion

2.7 Electroless copper plating, copper electroplating

2.8 Surface solder mask and solderability protective layer

2.9 Shape processing

Printed Circuits Offers Quality Rigid-Flex Circuits

Rigid-Flex Circuits enable you to design circuitry to fit your end product, rather than building it around the circuit board – and they are a reliable, strong, and versatile way to do so.

At Printed Circuits, FASTPCBA specialize in bringing advanced rigid flex circuit designs to market, and we consistently build on over 20 years of manufacturing expertise. ISO9001, ISO13485, IATF16949 Certification. Our facilities offer world-class, cost-effective PCB production and PCB Assembly. For more information about what we can do for your PCB or PCBA project, get in touch with our team today.

fastpcba

FASTPCBA Service Center

FASTPCBA is Professional 20 Years PCB / PCBA Manufactuer in China, especially more than 80% circuit board are exported to oversea market. We offer 24*7 hours quotation service and engineering support. Offering: 1) PCB Assembly (including Components Sourcing & Testing) 2) Rigid PCB (1~48Layer) 3) Flexible PCB 4) Rigid-flex PCB 5) Aluminum PCB If you have any PCB projects, welcome to contact us. We sincerely hope to cooperate with you.