Dual Layer Flexible PCB Built on Polyimide With Immersion Gold and Yellow Mask

Dual Layer Flexible PCB Built on Polyimide With Immersion Gold and Yellow Mask

(FPC’s are custom-made products, the picture and parameters shown are just for reference)

General description

This is a type of flexible printed circuit for the application of analog device. It’s a 2 layer board at 0.15mm thick. The base laminate is from ITEQ, It's fabricated per IPC 6012 Class 2 using supplied Gerber data. Immersion gold is applied on the pads. Stiffener is applied on the connector part.

Parameter and data sheet

Features and benefits

Excellent flexibility

Reducing the volume

Weight reduction

Consistency of assembly

Increased reliability

Controllability of electrical parameter design

The end can be whole soldered

Low cost

Continuity of processing

Focus on low to medium volume production

Applications

Thin-film switch, mobile phone antenna flex board, automobile GPS navigation flex board

Stiffener

In many applications where there are components soldered, the flexible boards require external stiffeners (Stiffener, also known as the reinforcing board) for external support. The stiffener materials are PI or Polyester film, glass fiber, polymer materials, steel foil, aluminum shim and so on.

(1)PI or Polyester

PI and polyester films are commonly used stiffener materials for flexible circuit board. The commonly used thickness is 125μm (5mil), some hardness can be obtained.

(2)Glass fibers

Glass fibers (such as FR-4), which are also commonly used materials for stiffeners. The fiber glass stiffener has a higher hardness than that of PI or Polyester, used where the requirements of harness is higher. The thickness range is typically 125μm (5mil) to 3.175mm (125mils). However, its processing is relatively difficult than PI, and may not be a standing material for some FPC factories.

(3)Polymer

Polymer, such as plastic, etc. is also used as stiffeners.

Its water absorption is low, with high pressure and high temperature resistance.

(4)Steel foil, aluminum shim

The support hardness of steel foil, aluminum shim is high, the heat can also be dissipated. The hardness or heat dissipation in the design is the main concern.

More Displays of FR-4 Stiffener

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen China, severing cellular base station antenna, satellite, high frequency passive components, microstrip line and band line circuit, millimeter wave equipment, radar systems, digital radio frequency antenna and other fields worldwide for 18 years. Our high frequency PCBs are mainly built on 3 high frequency material brands: Rogers Corporation, Taconic and Wangling. Dielectric constant ranges from 2.2 to 10.2 etc.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

Main Business & PCB Applications

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. We also have divisions of FR-4 circuit board, flexible circuits and metal core PCBs featured as prototypes, small runs to mass production. We actively research and build such high value added PCB projects as HDI, quick turn, impedance control, heavy copper and backplane board etc. This has made our PCB products generate an effective prolongation and complementation, as well as formation of integrated products line ranging from low-end to high-end.The circuit boards are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main Material Partners