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 | |