Thursday, May 28, 2020

High Frequency PCB On PTFE (F4B DK2.65)


Hi Manager,

BGA is ball grid array packaging technology, high density surface assembly packaging technology. It's a type of surface-mount packaging used for integrated circuits(IC). They can be found in many interconnection pins devices such as microprocessors, communication equipment and control industrial machinery etc.



a)    High density saves the soldering space. It greatly avoid the danger of accidentally bridging adjacent pins with solder grew.

b)    Function is increased due to the increase in the number of pins

c)    Easy to let tin on pads when solder melts on PCB due to its self-centering

d)    High reliability and good electrical performance

e)    The heat conduction is much better than the packages with legs between the PCBs



1)    Many micro vias are used

2)    Via finished diameter ranging 8 to 12mil.

3)    Vias are needed to be plugged, no solder mask onto BGA pads and no drill on BGA pads.


PCB Service:
1) Multilayer PCB on FR-4 Tg135
, Tg170,RO4350B, RO4003C

2) Prototype, small runs and mass production

3) Various surface finishes: HASL, Immersion gold, Immersion tin, Immersion silver, OSP

4) Various solder mask: Green, Blue, Matt blue, Red, Yellow, Black, Matt black, White

5) Door to door shipment


If you have requirement on BGA PCBs, please do not hesitate to contact us by simply reply back to this email.


Kevin Liao | Business development

Bicheng PCB | |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN

If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as "remove" in the subject line.


Bicheng is located at Baoan, Shenzhen, China 518103.



At 2020-02-12 14:03:00, "bichengpcb | RF PCB" <> wrote:





High Frequency PCB On PTFE (F4B DK2.65)

Dear Manager,

This is a type of cheaper high frequency for your reference.


PCB Specifications

Layer count:

Double sided

Base material:

F4B DK 2.65


210 x 115mm

Finished thickness

1.6mm ±10%

Finished Copper weight:




Surface finish:

Immersion gold


Let's see the stack up.

Top layer and bottom layer are 3oz copper finished. F4b dielectric material is in the middle of 2 layers copper, showing dielectric constant at 2.65

From the photo of this board, the track is thicker than normal boards; surface finish is immersion gold and no solder mask and silkscreen.


Our PCB Capability

PCB Material:



F4B series

Dielectric constant:

2.2, 2.55 and 2.65

2.17, 2.45, 2.75 and 3.0

Layer count:

1 Layer, 2 Layer, Multilayer, Hybrid type

Copper weight:

0.5oz, 1oz, 2oz, 3oz

PCB thickness:

0.17mm, 0.25mm, 0.5mm, 0.8mm, 1.0mm,

1.5mm, 2.0mm, 3.0mm, 4.0mm and 5.0mm, etc.

PCB Size:

400mm X 500mm

Surface finish:

Bare copper, HASL, ENIG, Immersion tin etc.


The dielectric constant of F4B material is wide, ranging 2.2 to 3.0 etc. Board thickness ranges 0.17mm to 5.0mm.


We can provide you with prototype service, small batches and mass production service.


If you are interested in high frequency PCB, we are willing to share our price with you. We are looking forward to hearing any feedback from you and wish you all the best.

Thanks for your time to check this e-mail and hope to hearing from you soon.


Warm Regards

Business Development


Bicheng PCB

Fuyong, Baoan, Shenzhen, Guangdong, China 518103

Tel: +86 755 27374847,27374946

Email: | Web:

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If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as "remove" in the subject line.

Monday, May 4, 2020


Dear Sir/ Madam,


Urgent: Request for Quotation


Due to urgent requirement, I’m on behalf of MRCSB would like to Request for Quotation and the details as in attachment.


Instruction to Bid : Please refer to page 4 highlight in BLUE


All quotation shall be submitted to the following email:

Your cooperation in this regard is highly appreciated and thanks in advance.


Thank you.


Best Regards,



Executive, Sourcing

Procurement Melaka, Group Procurement Department

Project Delivery & Technology (PD&T) Division



c/o Refining Company Sdn Bhd, Level 1, Workshop / Warehouse Building, Persiaran Penapisan, 76300

T: +(606) 352 2507 (DL), +(606) 352 2020 (GL) F: +(606) 352 2550