Single sided PCB is only printed circuit on one side of the substrate, also known as printed etching board. Etch resist is usually printed by screen printing technology, and the conductor pattern is formed by chemical etching to remove the exposed copper foil.
Typical material of single sided printed circuit board
This circuit board manufacturing method is generally used in low-cost, mass, and relatively less functional device. Most of the single-sided PCB is made from the lowest cost paper substrate, and the most popular paper based flame retardant phenolic resin XPC is used. It is a kind of laminates with high punching properties.
On the other hand, many materials can be used for single sided PCB according to its actual applications. For example, FR-4 is often seen in our home appliances, CEM-1 and FR-1 are often seen in the toys, aluminum substrate in LED lighting and polyimide in the flexible PCB etc.
Manufacturing process of single side circuit board
Generally, a highly automated production and conveyor belt printing and etching production line is adopted for mass production. The basic process is as follows.
Step 1, Saw or cut the substrate to the appropriate size of the plate.
Step 2, Put the laminate into the loader and send it to the production line.
Step 3, Clean the surface of laminate.
Step 4, Use UV curable anticorrosion ink for surface screen printing.
Step 5, Solidified anticorrosion ink.
Step 6, Etch exposed copper.
Step 7, Strip anticorrosion ink.
Step 8, Coat solder mask ink.
Step 9, Print component text.
Step 10, Drill or punch holes.
Step 11, Test open/short circuit
Step 12, Pack boards and make delivery.
The speed of the automatic printing and etching line conveyor is 35-45 ft/min. Mass production lines are equipped with on-line optical inspection, so that the final electrical open circuit short circuit test can be avoided.
In some process changes, the surface of the PCB conductor is insulated, only the pads are exposed, then the conductive paste is printed, the extra conductor is formed on the same side of the circuit board, and the double conductor layer is formed on the surface of a single layer.
Most metal core PCB consumer products generally use copper clad aluminum based materials, copper clad copper based material and iron etc. PCB made of these materials has no plated-through-hole, and the components are usually surface mounted. Recently years, plated through holes on metal cores are also used in the heat dissipation equipment. Some example can be found in Bicheng's latest MCPCB shipment.
North America, Oceania, Southeast Asia, Eastern Europe, Africa, Latin America, Western & Southern Europe, Northen Europe, Central & South Asian, Middle East.
Payment & Shipping Terms:
|Board Material:||FR-1,KB||Board Thickness:||1.99-2.05 Mm|
|Outer Copper Foil:||44.17ｕm||Surface Treament:||Lead Free HASL|
|Solder Mask Color:||No Required||Legend Color:||Black|
|Electrical Test:||100% PCB Passed|
1.1 General description
This is a type of 1 layer PCB board built on FR-1 substrate with Tg 130°C
for the application of switch. It's only 2.0 mm thick with black silkscreen
and HASL on pads. The base material is from KB supplying single up
PCB. They're fabricated per IPC 6012 Class 2 using supplied Gerber
data. Each 25 boards are packed for shipment.
1.2 Features and benifits
A. Excellent wetting during component soldering and it can avoid copper
B. 16000 square meter workshop
C. Reliability test, insulation resistance test and ionic contamination test
D. No minimum order quantity. 1 piece is available.
E. Free stencil shim sent for new user
Servo Motor, Tone Generator, Tracking System, Programmable Logic Controllers,
WiFi Booster Antenna, GSM/GPRS/GPS Tracker, AC To DC Transformer, Physical
Access Control, Analogue Repeater, Central fire alarm systems
1.4 Parameter and data sheet
|Basic information||Board type||Single Sided PCB||Single Sided PCB|
|Layer count||1 layer||1 layer|
|Board size||51 x 51mm=1UP||51 x 51mm=1UP|
|Board thickness||2.0±10% mm||1.99-2.05 mm|
|Outer copper foil||>=35 ｕm||44.17|
|Inner copper foil||/||/|
|Legend||Type||KUANG SHUN||KUANG SHUN|
|Min line width (mil)||/||/|
|Min line spacing (mil)||/||/|
|Min ring width (mil)||/||/|
|Surface Treament||Lead free HASL||OK|
|Special Treament||Silk screen||/||/|
|Normal Testing||Electrical test||100% PCB passed||OK|
|Solderability Test||245℃ 5S 1 Cycle||OK|
|Drill table (mm)||1||NPTH||3.0|