Linked Electronics Co., Limited

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Countersink SMT Service HASL Lead Free PCB Fabrication

PCB Certifications
Good quality PCB Assembly Services
Good quality PCB Assembly Services
Customer Reviews
You have been awesome to work with! The products you have provided have been awesome as well! We will for sure doing some ordering in the near future

—— Amy

Linked have shown strong competitive pricing, quality product and on time delivery in the time we have been working together

—— Karissa

I tell my boss everyday how wonderful you are and how quick to responding you are (when you are awake J). We will continue to go through you guys and have no negative feelings towards you or your company. Thanks for always looking out for us and getting our products here as fast and as cheap as possible.

—— Nate

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PCB Assembly Services

  • High Precision PCB Assembly Services suppliers

Linked Electronics is a one stop PCB solution provider, which includes PCB fabrication, PCB assembly and parts sourcing service. Our technical capabilities can place SMT components as small as 0201, fine-pitch BGA, QFN board. We have earned the good recommendations from our customers through the excellent services we have provided. PCB Assembly is the process that placing components on the printed circuit boards. Linked Electronics

is specializing in PCB assembly prototying with quick turn service. 



Features of Assembly Services


1) Linked Electronics' PCB Assembly service is conformed with UL,CE,FCC,Rohs approval.


2) Professional Surface-mounting and Through-hole soldering technology. 


3) SMT 1206,0805,0603,0402,0201parts.


4) UV Conformal Coating.


5) Linked Electronics has high standard SMT&solder assembly lines.


6) Nitrogen gas reflow soldering technology.


7) High density interconnected board placement technology capacity is also available with us.


8) Free X-ray test for PCB prototypes


Countersink SMT Service HASL Lead Free PCB Fabrication

Countersink SMT Service HASL Lead Free PCB Fabrication
Countersink SMT Service HASL Lead Free PCB Fabrication Countersink SMT Service HASL Lead Free PCB Fabrication Countersink SMT Service HASL Lead Free PCB Fabrication Countersink SMT Service HASL Lead Free PCB Fabrication

Large Image :  Countersink SMT Service HASL Lead Free PCB Fabrication

Product Details:

Place of Origin: China
Brand Name: Linked Electronics
Certification: UL, TS16949, ISO14001, ISO9001
Model Number: LPCB1350

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: by negotiation
Packaging Details: vacumm package+carton box
Delivery Time: 4 weeks
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 10, 000pcs per month
Detailed Product Description
Product Name: Countersink PCB Assembly Board Brand: Linked Electronics
PCB Material: FR4 PCBA Standard: IPC-A-610E
Type Of Assembly: SMT, Thru-hole Copper Thickness: 1OZ
Layer: 4 Layer Multilayer PCB Special: Countersink And Peelable Mask
High Light:



Lead Free Prototype Pcb Fabrication

Countersink PCB Fabrication SMT Service HASL Lead Free 35um for Sensors


Linked Electronics PCB services includes


One stop service including PCB layout, PCB fabrication, components purchasing,PCB assembly, test, packing and PCB delivery.


*Fast PCB prototype manufacturing and mass production for PCB boards.

*Electronic Components Sourcing.

*PCB board with parts assembled.

*Function Test


*Reverse engineering service

*Fast delivery, anti-static package


Countersink SMT Service HASL Lead Free PCB Fabrication




Counersink PCB Board


On countersink hole PCB board, there is a conical hole which is cut to allow the flat head screw to be used is called a countersink hole. It can also be called as a conical hole that is cut into a PCB FR4 laminate, or a hole created by using a drill. Countersink holes can be plated or non plated. 


Countersink Hole is used on a PCB board that sink the screw head into PCB that the board looks clean and flat. For countersink hole, generally speaking, it come into two types of shapes.V figure Count-sink and T figure Count-Sink.



Countersink SMT Service HASL Lead Free PCB Fabrication

A countersink hole in a PCB creates room for a clean installation and is ideal for tight-fitting applications in very delicate devices. PCB countersink applications found in mobile phones, small wearable devices and 

IoT products.



If you have any countersink PCB requirements, contact our sales team and we are very pleased to provide you any PCB services that you need. 


To make the countersink holes exactly that you want, we will need the following information.

• Angle of the hole
• Major Diameter (finished diameter of the hole at the surface)
• Depth the countersink is to be drilled
• Countersink hole is requried on the top or bottom side.
• The finished diameter of the shaft of the hole
• NPTH or PTH of the countersink hole.

• Tolerance is +/-0.15mm


Countersink SMT Service HASL Lead Free PCB Fabrication





PCBA Manufacturing Capabilities at Linked Electronics, the PCB manufacture in China


Max. PCB Size 410mm x 600mm Min. PCB Thickness 0.1mm
Max. BGA Size 74 mm x 74mm BGA Ball Pitch 0.2mm
QFP Lead Pitch 0.38mm ~ 2.54mm Min. IC Pitch 0.30mm
Min. Chip Placement 1005
Type of Assembly SMT, Thru-hole, Cable assembly, Wire Harness
Solder Type Water Soluble Solder, Lead-Free,Wave soldering
Components Passive Down to 0201 size
Leadless Chip Carriers/CSP/QFN
Double-sided SMT Assembly
Fine Pitch to 0.8mils
BGA Repair and Reball
Part Removal and Replacement
Component packaging Cut Tape, Tube ,Reels, Loose Parts
Programming Hex file or bin file firmware.
Testing Flying Probe Test, X-ray Inspection AOI Test
PCB Assembly process

IQC for incoming materials checking----

Material baking----SMT----- Semi-Products Testing & QC

---DIP parts -- IPQC--- Wave Soldering---

Semi-Products Testing & QC----Assembling----

ICT or Xray-----100% Function Testing-----

Reliability Testing (burn-testing) ---

Package - Shipping




Rohs Compliant




RoHS stands for Restriction of Hazardous Substances which is widely known as RoHS 1 (Directive 2002/95/EC), RoHS 2 (Directive 2011/65/EU), and RoHS 3 (Directive 2015/863), originating in the European Union. RoHS directive restricts the use of specific hazardous materials commonly found in Electrical and Electronic Products (EEE).


At Linked Electronics, we know how important the enviroment is to us and how important the health of our staff is. All the PCBs that we manufactured is complying with environmental and human health protection laws and regulations. All the Printed Circuit Boards or assembly PCB boards are complied with the reach and rohs regulations.





Countersink SMT Service HASL Lead Free PCB Fabrication





Contact Details
Linked Electronics Co., Limited

Contact Person: Mr. Jonathan

Tel: +86 755 2553 8256

Fax: 86-755-61658416

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