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SET JSC

1 "Hristo Botev" Blvd.

BG-7018  Rousse

Tel.: +359 82 88 66 00

Fax: +359 82 88 66 88

e-mail: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

 

Visitors: 5727060
 
Single-sided PCBs Print
 
 
Standard

At overhead expenses

Basic copper Final copper (1)Min. ring (2)Basic copperFinal copper (1)Min. ring (2)
18µm18µm200µm/8mil70µm70µm300µm/12mil
35µm35µm200µm/8mil105µm105µm325µm/13mil

 

1. Final copper

2. Min. ring

3. Final diameter of the hole after plating and soldering 

 

For reason of the mechanical strength the pads are recommended to have a larger remaining ring compared with similar ones in a copper-plated PCB. 

 

Recommend values (example):

 

Min. hole0.8mm      +0.1/-0.0mm (32mil)
  
Drill widening                                             +0.05mm
Drill diameter                                             =0.85mm
  
Min. ring  ? 2                                              + 0.30mm ? 2 = 0.60mm
Min. pad                                                     =Ø 1.45mm
 
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