Describe the process of Exposure method to make Single side PCB

Step 1 : Cut the material to the required size.
USE the PCB board cutting machine to cut the big sheet to smaller.It is easy to operate, easy to maintain.
Another option Electric metal shearing Machine .

Step 2 :Brushing and washing drying.
Clean and roughen the board surface to ensure the binding force between the graphic transfer material and the board surface ,use PCB Brushing Cleaning Machine .

Step 3 :Photoresist Coating.
1.If dry film is used, a dry film laminator machine can be used.
2. If using wet photoresist ink , you can use a silk screen printing machine for PCB

Step 4 :Exposure.
Single-side exposure, mass production can use single-side-LED-Exposure-Unit , saving energy, no heat, high efficiency .

Step 5 :Developing
photoresist developing machine

Step 4 : Etching
to remove the exposed copper ,Get the required graphic circuit . Usually etched with ferric chloride,or Copper chloride and Ammoniaphoto chemical Etching Machine for PCB

Step 5 : Stripping

Remove the ink covered by the formed circuit pattern to obtain the required copper pattern circuit.stripping cleaning drying machine

Step 6 : Target Drilling

Function: use for drilling hole in aluminum PCB board ，these hole is use for Locating pin Solder mask silck screen print .

key machine：Semi Automatic Target Driller key machine： Automatic Target Driller

Step 7 : solder mask printing

Function: to form a uniform layer of solder resist ink on the circuit board through screen printing。 key machine：silk screen printing machine for PCB . key material：Photosensitive solder resist ink

Step 8 :component printing

Function: screen printing on the board to form a uniform thickness of text ink. Working principle: screen printing (commonly used), spraying Key equipment: silk screen printing machine for PCB to achieve the required hardness and adhesion through baking。 Working principle: heating furnace low temperature baking Choose the drying equipment according to the properties of the ink . UV curing machine for PCB and Hot air circulating drying Oven

Step 9 : cnc drilling

punching the hole or if have rout, routing (here for hole can use cnc drilling too) .Key equipment: pcb cnc drilling and routing machine

Step 10 : V-cut

Function: process the V-shaped pit on the PCB, which is convenient for the customer to decompose the PCB delivery unit into the smallest finished unit after installation. Working principle: manual / CNC V-CUT cutting . Key equipment: A. Manual PCB V Grooving Cutting Machine B. CNC V-CUT machine

Step 11 : Antioxidant（HASL or OSP or Rosin coating)

Function: provide the deposit layer with good oxidation resistance and weldability, and provide a good welding surface for the downstream patch.

Key equipment: A.Hot Air Solder Leveling Machine. B.OSP line C. Rosin coating machine