Difference between revisions of "How to manufacture your PCB"

Revision as of 13:19, 11 December 2011

Manufacturing Check List

• Make sure check for unrouted nets
  • turn on only the unrouted layer
• Design Rule Check
  • 6 mil min 8 mil min preferred
  • Check power net widths
  • Check ground net widths
• Silkscreen appropriately
• View the PCB correctly in View Plot
• Generate a PDF of the schematic
• Generate Assembly drawings
• Add the border
• Stick with the grid, you may not violate this rule
• All PCBS must be black unless you have a good reason
• Load the seven files with Viewplot. Be sure to specify the drill file type as 2.4 leading.
  • Top and bottom copper (.GTL, .GBL)
  • Top and bottom solder mask (.GTS, .GBS)
  • Top and bottom silkscreen (.GTO, .GBO)
  • Drill file, 2.4 leading (.TXT)
• Be sure to specify the drill file type as 2.4 leading.

Vendors

These are just some vendors we've had experience with. We listed their capabilities below

Advanced Circuits

   Min. qty. 4, Get 1 EXTRA PCB FREE! 	
   White Legend (1 or 2 sides)
   Lead Time 5 Days 	
   1 Part Number Per Order (extra $50 charge for multiple parts or step & repeat)
   2-Layers, FR-4, 0.062", 1 oz. cu. plate 	
   Max. size 60 sq. inches
   Lead FREE Solder Finish 	
   No slots (or overlapping drill hits)
   Min. 0.006" line/space 	
   No Internal routing (cutouts)
   Min. 0.015" hole size 	
   No scoring, tab rout or drilled hole board separations
   All Holes Plated 	
   Routed to overall dimensions
   Gren LPI Mask 	
   Maximum 35 drilled holes Per Sq. Inch

Tech Circuits

http://www.techcircuits.com/prodserv.php

   * Prototype, Low-to-Medium Production Volume
   * Multilayer, Double-Sided and Single-Sided PCB
   * Deliveries 1 Day to 4 Weeks
   * Line Widths & Spacing to 0.003" (0.075 µm)
         o UL Approved
   * Low Loss/High Speed Laminates
         o Rogers, Getek, Nelco
   * Hybrid Multilayer Laminate Construction
   * Impedance Control - Modeling & TDR Testing
   * Micro Drilling to 0.006" (150µm) Diameter
   * Laser Ablation 0.002" (50µm) to 0.006" (150µm)
   * LPI Soldermask
         o Via Plug & Solder Dams 0.002" (50µm)
   * Alternate Finishes
         o Electrolytic Au, Immersion Au, Silver, Tin; OSP, High-Temp OSP, HASL
   * Edge Plating & Castillated Holes (Half Diameter PTH)
   * All CAM Work Stations have Full Design Rule Checking Capability
         o Frontline Genesis 2000 with ODB++ Compatibility
   * Laser Photo Plotting
   * Automated Optical Inspection (3)
   * Net List Simultaneous Universal Electrical Test
         o Flying Probe & Universal Grid
   * Plating Thickness Inspection
         o X-ray Fluorescent & Atomic Absorption Scope
   * 24-Hour Data Transfer, FTP or E-mail

Gold Phoenix

   Must buy Panel, 
   1-2 layer 155sqin ($110) 100sqin ($100) 5 day
   2-4 layer 155sqin ($300) 100sqin ($280) 75sqin ($250) 6 day
   * 2 or 4 layer boards - 0.062" FR4 material
   * 2 Layer sizing:
         o 7mil (~0.2 mm) spacing minimum
         o 7mil (~0.2 mm) traces minimum
         o 15mil (~0.5 mm) minimum drill size
   * 4 Layer sizing:
         o 7mil (~0.15 mm) spacing minimum
         o 7mil (~0.15 mm) traces minimum
         o 15mil (~0.33 mm) minimum drill size
         o No blind/buried vias
   * ???mil (~??.? mm) maximum drill size
   * All drill hits are plated through
   * Matte v-scored, Multipaneled
   * Board is routed to the indicated border (+$20)
   * Soldermask top side
   * 1oz Copper
   * No limit on the number of vias
   * No limit on pads or components
   * Multiple designs, multiple copies are allowed!

Batch PCB

   Boards can be as small as 0.5" (~12.7 mm) square.
   * 2 or 4 layer boards - 0.062" FR4 material
   * 2 Layer sizing:
         o 8mil (~0.2 mm) spacing minimum
         o 8mil (~0.2 mm) traces minimum
         o 20mil (~0.5 mm) minimum drill size
   * 4 Layer sizing:
         o 6mil (~0.15 mm) spacing minimum
         o 6mil (~0.15 mm) traces minimum
         o 13mil (~0.33 mm) minimum drill size
         o No blind/buried vias
   * 500mil (~12.7 mm) maximum drill size
   * All drill hits are plated through
   * No internal routes, no v-scoring, only drill files are sent to the fab house
   * Board is routed to the indicated border (very clean edges, you can get creative with the shape as well!)
   * Soldermask both sides
   * 1oz Copper
   * No limit on the number of vias
   * No limit on pads or components
   * Multiple designs, multiple copies are allowed!
   * Any size up to 10x15", measured in inch increments (254mm x 381mm)
   * Minimum billable size 1x1" (smaller boards are allowed but rounded up)
   * Your design can be any size - 1 inch is the minimum
   $10 setup fee (shown as a handling charge) - $2.50 per square inch for 2 layer designs, $8.00/sq. in. for 4 layer designs.