| KNOWLEDGE BASE

A rich source of expert knowledge

Learn from experts in the world of embedded systems

Walking Through a Big PCB Factory in China | JLCPCB

This is how boards are made. Watch how PCB is manufactured and how boards are assembled.
After watching this video you may be considering CAN for your next project. Thank you very much Ken.
Chapters:
  • 00:00What is this video about
  • 00:14Raw material cut to panels
  • 01:21Cleaning PCB
  • 02:59Photosensitive film applied (Building layers L2 & L3)
  • 03:56Exposing L2, L3
  • 05:39Developing L2, L3
  • 06:36Etching L2, L3
  • 07:27Removing photosensitive layer
  • 08:01AOI - Automated Optical Inspection
  • 08:55Making copper rougher
  • 10:43Adding prepreg
  • 11:19Adding copper sheets - Top and Bottom layer (L1, L4)
  • 13:01Baking PCBs, oven room
  • 14:54Splitting to two panels again
  • 17:06Adding aluminum sheet
  • 17:30Drilling
  • 19:39Plating
  • 20:52Electroless plating
  • 24:18Electroplating
  • 27:35Applying photosensitive film on L1 and L4
  • 28:19Exposing L1, L4
  • 30:15Developing L1, L4
  • 31:24Applying tin layer
  • 33:30Removing photosensitive layer from L1, L4
  • 34:38Etching L21 L4
  • 34:50Removing tin layer
  • 35:48AOI - Automated Optical Inspection
  • 36:35Optional electrical testing
  • 37:53Adding solder mask color
  • 40:06Exposing solder mask
  • 41:55Developing solder mask
  • 43:27Making silkscreen
  • 47:23Gold plating
  • 49:54Optical inspection, fixing, measuring
  • 51:08Electrical test
  • 52:13Milling - Removing PCB from big panel
  • 53:36V-Score
  • 55:34Packing PCB
  • 56:32Board Assembly
  • 57:34Inserting components into feeders
  • 58:51Stencil & Paste
  • 59:18Setting up component placement
  • 59:51Checking placement with AOI
  • 1:00:42Soldering - Going to owen
  • 1:01:15Checking after soldering
  • 1:01:56Assembling a board
  • 1:04:31Manual checking
  • 1:04:56Fitting through hole components
  • 1:05:58Wave soldering
  • 1:07:17Conformal coating
  • 1:07:57Packing assembled board
  • 1:08:303D printing
  • 1:11:02Done. Packing and shipping