Since 1986, Sierra Circuits has been a leading supplier of high technology, quick-turn Printed Circuit Boards. ISO-9001:2000 and MilSpec certified, Silicon Valley based company.
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Burn-in Boards
Burn-In Boards are boards that are used in the process of electrically stressing a device at an elevated temperature, for a sufficient amount of time to cause the failure of marginal devices (Infant Mortality).
Call and speak to an Account
Representative about
your order, products and more
1-800-763-7503 x 500

Sierra Proto Express Burn-In Boards Capabilities:
  Layer Count: 
     Up to 12 layers .062" thickness
     Up to 14 layers .067" thickness
     Up to 16 layers .093" thickness
  Board Size

12" x 24" and smaller
19" x 23"
23" x 27"
  Materials

Nelco 4000-13
Polyimide 55ST
Thermount 55 ST, 85 MT
BT
  Pitch Min .5 mm
  SMT and Through Hole
  HASL Boards
  Imaging 
     Min Line/Space .003/.003
     Surface Mt Pad .008
     Layer to Layer Reg +-.002
  Lamination
     Max Layers 30
     Min/Max Thickness .002/.280
     Overall Thickness +- 8%
     Bow & Twist  .7%
  Drill and Routing
     Hole Location .004
     Finished Hole Size  .006
     Tolerance (PTH) +-.001 inches
     Tolerance (NPTH)  +-.001 inches
     Min Drill Size  .006
     Aspect Ratio  20:1
     Min Pad to Hole (I/L)  Finished Hole Size + .010 inches
     Min Plane Relief  Finished Hole Size + .025 inches
  Plating
     Electroless Ni 100 micro inches
     Immersion Au  3 - 5 micro inches
     Copper  .003 inches
     Nickel  .0003 - .0005 inches
     Solder  .0001-.001 inches
     Max Gold  50 - 100 micro inches
  Etch Factors
     Inner Layer + .0005 inches
     Outer Layer  + .0005 inches
     Controlled Imp  +-5%
  Solder Mask
     Min Clearance  .002 /side
     Min Lay Down .002 inches
     Color  Most colors available
  Nomenclature/Legend
     Min Line  .005 inches
     Color  White (other colors available on request)

Call today to speak with an Account Representative at 1-800-763-7503 x 500.
To get a quote submit your gerber files to www.protoexpress.com/customquote


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