SMT Assembly PCBA Board Electric Contract Assembly with BGA X-ray Inspection

Sticking towards the principle of 'Super High-quality, Satisfactory service', We've been striving to become a superb business partner of you for Prototype PCB Assembly, Coffee Machine Circuit Board Pcb Assembly, PCBA Components Sourcing. Combined with the new situation and new tasks we are currently facing, we have accelerated our structural adjustment and put forward the goal of becoming an influential and competitive enterprise in the industry. We support our purchasers with ideal high-quality merchandise and significant level company.

1. Pcba full Assembly Service

We have YAMAHA YSM10 SMT machine, X-RAY Testing machine .

We always take customer’s requirements as our first job.your inquiry will be replied within 24 hours.                               

The PCBA products can be produced by 12 SMT lines, 2 DIP lines, 2 hand soldering lines, 2 assembly lines, 2 testing lines.

First, the printed circuit board is mainly composed of pads, vias, mounting holes, wires, components, connectors, filling, electrical boundaries, etc. The main functions of each component are as follows:

Pad: metal hole for soldering component pins.

Vias: metal holes used to connect component pins between layers.

Mounting hole: used to fix the printed circuit board.

Wire: Copper film used to connect the electrical network of component pins.

Connector: Components used for connection between circuit boards.

Filling: The copper used for the ground wire network can effectively reduce the impedance.

Electrical boundary: used to determine the size of the circuit board, all components on the circuit board must not exceed this boundary.  

Second, the common layer structure of printed circuit boards includes single layer PCB (Single Layer PCB), double layer PCB (Double Layer PCB) and multi-layer PCB (Multi Layer PCB), these three layer structure brief description as follows:

(1) Single-layer board: a circuit board with copper on only one side and no copper on the other side. The components are usually placed on the side without copper, and the copper side is mainly used for wiring and soldering.

(2) Double-layer board: a circuit board with copper on both sides, usually called one side as the top layer and the other side as the bottom layer. Generally, the top layer is used as the component placement surface, and the bottom layer is used as the component welding surface.

(3) Multi-layer board: a circuit board that contains multiple working layers. In addition to the top and bottom layers, it also contains several intermediate layers. Generally, the intermediate layer can be used as a wire layer, a signal layer, a power layer, and a ground layer. The layers are insulated from each other, and the connection between layers is usually achieved through vias.

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Copyright statement: This article is an original article of CSDN blogger "Fanyi Education", which follows the CC 4.0 BY-SA copyright agreement. For reprint, please attach the original source link and this statement.

Original link: https://blog.csdn.net/weixin_43044164/java/article/details/98733977

2.About us

BQC leverages its competitive advantages in scale procurement and quality control to ensure the quality of raw materials and stable supply, and to transfer benefits to customers. Long-term maintenance of IC, resistors, capacitors, inductors, two transistors and other components of the procurement advantages, can greatly save customers' inventory costs, improve production turnover efficiency and save time. Currently providing PCBA processing services to customers in the United States, the United Kingdom, Japan, France, Canada, Australia, Sweden and other countries.

3.Supply chain management

Procurement policy

Standard part mass order,like IC,will only use authorized agents from original manufacturer’s official website

http://www.nxp.com/cn/about/about-nxp/worldwide-locations/worldwide-sales-offices/distributor-network:DISTRIBUTORS#CHINA

http://www.ti.com.cn/general/cn/docs/gencontent.tsp?contentId=24957

Standard part low volume or rush order:digikey,element14

Unique part like PCB,will choose top 10 suppliers in shenzhen,like shenzhen suntak circuit technology Co., Ltd and Tean Electronic,etc.

Compare price from 8 suppliers,to make sure get reasonal best price.

Use alternative parts after customer’s approval, and on the premise that no compromise of quality

4.Components Quality Control 

Components inspection 

Sample stage: When there is new part,product engineer will strictly inspect every part according to component datasheet.

Mass order procurement:IQC inspection according MIL-STD-105E sampling inspection class II standard 

Materials inspection equipments:LCR TESTER,Electrolytic capacitor leakage current tester,Transistor characteristic graph tester,Transistor tester.

4.Art Craft Capacity 

SMT + DIP soldering + Package                                                                                

SMT：Reflow soldering

1. Chip:01005

2. BGA ball

Spacing>=0.25mm

3. BGA ball diameter>=0.1mm

4. IC pin pitch>=0.2mm

DIP + soldering:Wave soldering

1. Through hole wave soldering

2. Selective wave soldering

3. Free-clean,Ultrasonic clean

4. Hand soldering

Package:Hand work

1. Plastic/metal box building

2. Safety package

Exhibition:

Since 2015 ,we started to attend many Exhibitions like HK Electronic Fair both Spring and Autumn , Munich Electronic Fair and CES, IPC.

Our Market:

Certification:

FAQ:

1. Q1:What service do you have?     

BQC:We provide turnkey solution including SMT/DIP, components sourcing, final products assembly

2.What’s our PCBA manufacturing productivity 

3. Work shop

Trade terms

1. Payment terms: L/C, T/T, Western Union

2. MOQ: 1pcs

As a large company with many years of experience, we develop SMT Assembly PCBA Board Electric Contract Assembly with BGA X-ray Inspection with independent intellectual property rights, which has great social and economic benefits. We pursue perfection in every detail and carry out strict quality control on every process. While paying attention to the corporate image and the steady increase of comprehensive strength, our company always pursues the business philosophy of "pragmatic integrity, scientific and technological innovation".