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Capabilities

 

View the Technology Road Map for Chemitalic Suzhou

 

PRODUCT FEATURE Normal     Special     Cost Optimum
Layers
Minimum  2 0     
Maximum 8 14     
Board thickness
Minimum  0.8 mm  0.1 mm 1.0 mm 
Maximum 3.2 mm   1.6 mm 
Inner layer laminate thickness 
Minimum  0.15 mm 0.10mm 0.20mm 
Maximum  1.10 mm 1.40 mm 0.71 mm 
 
Prepreg thickness*
Type 7628 FR4  0.191 mm     Yes
Type 2113 FR4  0.100mm     
Type 2116 FR4  0.110 mm    Yes
Type 1080 FR4  0.071 mm     Yes 

NOTE: 2 prepregs as minimum between laminates unless otherwise specified.

 
Copper thickness 
12 micron (1/3 oz)  - Yes     
17.5 micron  (1/2 oz)  Yes     X
35 micron (1 oz)  Yes         
70 micron (2 oz)  On request only         
105 microns (3 oz)    On request only  
 
PRODUCT FEATURE Normal Special Cost Optimum
Minimum lines and spaces
Line/space inner layers  125 micron For Base Cu thickness 100 microns for base copper thicknes ≤ 17.5 micron  150 microns for base copper thickness ≤ 17.5 microns
≤ 17.5 micron 175 microns for base copper thickness = 35 microns 
150 microns for base copper thickness 35 microns  
 
Line/space Outer layers 

 

125 micron For Base Cu thickness

100 microns for base copper thicknes ≤ 12 micron 

 

150 microns for base copper thickness ≤ 17.5 microns

≤ 17.5 micron 175 microns for base copper thickness = 35 microns 
150 microns for base copper thickness = 35 microns  
 
Minimum annular ring, pad diam. / finished hole diam.  (no breakout) / Mecanical drilled 
Inner layers  0.42 mm 0.37 mm 0.50 mm 
Outer layers  0.35 mm 0.28 mm 0.40 mm
 
Viaholes minimum ann.ring, pad diam. / finished hole diam.(no breakout)/Mecanical drilled
Inner layers  0.30 mm 0.25 mm    
Outer layers  0.24 mm 0.20 mm    
 
Minimum hole diameter after copper plating 
Mech. drilled  0.15 mm 0.10 mm 0.40 mm 
 
Holes, tolerance, (diameter D is nominal) 
Through plated hole   
0.15 ≤ D ≤ 0.5 mm + 0.10 / -D mm    
0.5 ≤ D ≤ 2.0 mm ± 0.075 mm ± 0.10 mm 
D = 2.0 thru 6.0 mm ± 0.10 mm  
NOTE 1 
Press fit connector Hole D ≤ 3.0 mm      
NOTE 2 ± 0.05 mm
Non plated hole   + 0 / - 0.05 mm  
D ≤ 6.0 mm ± 0.05 mm on request only   
D > 6.0 mm  ± 0.10 mm    
NOTE 1: ± 0.050 mm on ENIG/ISn Solder Surface
NOTE 2: After copper plating
 
PRODUCT FEATURE Normal Special Cost Optimum
Hole copper plating, nominal copper thickness 
Via hole minimum
Aspect ratio ≤ 4  25 micron      
NOTE 1 
Aspect ratio > 4  18 micron       
NOTE 2 
 
NOTE 1: assumes an average of 6 measurement points, localized down to 18 microns, if required 25
NOTE 2: assumes an average of 6 measurement points, localized down to 12 microns, if required 18
NOTE 3 assumes an average of 6 measurement points, localized down to 13 microns, if required 15
NOTE 4 assumes an average of 6 measurement points, localized down to 10 microns, if required 12 
 
Maximum Aspect Ratio
Laminate thickness/hole 5 6 3
Hole placement
Hole to pattern NOTE 1  ± 0.10 mm   ± 0.08 mm  ± 0.13 mm  
Non plated holes drilled in routing program to through holes  ± 0.10 mm   
± 0.13 mm  
NOTE1: Assumes maximum board dimension 300X300 mm 
 
Solder mask to pattern, placement accuracy and minimum bar 
Primary mask  ± 0.075 mm ± 0.050 mm ± 0.10 mm 
Plug mask NOTE1  ± 0.2 mm        
Minimum bar width  0.09 mm 0.075 mm 0.10 mm 
NOTE: If required holes with D<0.4 mm are plugged, but not completely filled. Placement is relative to hole. 
Via plugging
Core thickness  > 0.5 mm     0.80 mm 
Screened legend (component annotation) placement accuracy and minimum features
Minimum distance to solder pad  0.20 mm       0.25 mm 
Minimum character height  1.20 mm       1.50 mm 
Minimum character stroke width  0.20 mm    0.25 mm 
 
PRODUCT FEATURE Normal Special Cost Optimum
Screened carbon polymers for contacts
Minimum bar width 0.3 mm              
Minimum spacing carbon to carbon 0.3 mm            
Minimum contact area Carbon to copper 0.2 X 0.3 mm              
Minimum carbon/copper overlap 0.2 mm            
Minimum distance, carbon to conductor 0.5 mm            
Minimum distance carbon to solder mask 0.3 mm            
Minimum carbon/solder mask overlap 0.3 mm           
Carbon thickness 15 - 30 micron           
Maximum resistance after climatic test 200 Ohms           
Surface treatment  
Hot Air Leveling 1-40 microns        
Hot Air Leveling(Leadfree) 1-40 microns     
Electroless nickel/gold (ENIG) nickel 4 - 8 microns          
gold 0.05 - 0.20 microns
Immersion tin (ISn) 1.0 - 1.3 microns           
OSP 0.2 - 0.5 microns          
Hard gold NOTE1 nickel 4 microns minimum gold 1.27 micron minimum  Nickel > 4 microns   
Gold > 1.27 microns
NOTE: Minimum distance between hard gold contacts and hole is 1.0 mm for PCB with hot air leveling and 0.7 mm for PCB with electro less nickel/gold or immersion tin 
 
Peel able mask
Position tolerance ± 0.50 mm       0.75 mm 
Minimum area 30 mm2       40 mm2
Minimum feature 3 mm       5 mm 
Minimum distance to uncovered pattern 1.0 mm       1.5 mm 
Maximum hole diameter for full coverage 1.5 mm       1.2 mm
 
Routing
Minimum tolerance ± 0.10 mm       ± 0.13 mm 
Minimum distance routing to pattern Outer layers 0.20 mm      Outer layers 0.30 mm
Inner layers 0.40 mm  Inner layers 0.50 mm
 
PRODUCT FEATURE Normal Special Cost Optimum
Scoring
Minimum positioning tolerance ± 0.1 mm           
Angle 30°  / 45°          
Tolerance to routing +0.225 mm          
- 0.20 mm 
Contour displacement relative to origin + 0.15 mm          
- 0.10 mm 
PCB tolerance, 2 scored edges after separation + 0.20 mm          
- 0.10 mm 
Minimum distance nom. Centerline to pattern/holes 0.50 mm       0.70 mm 
Bevel/chamfer
Angles standard 30° and 45°           
Angels on request 20° to 60°           
Angle tolerance ± 5°         ± 10° 
Depth tolerance ± 0.10 mm        ± 0.20 mm 
Minimum Bevel/chamfer travel 45 mm with 10 mm clearance at both ends       45 mm with 20 mm clearances at both ends



Chemitalic Denmark A/S – Chemitalic Suzhou Ltd. Tel. +86 512 6282 3088 – Mail:info@chemitalic.com