Place of Origin: | Zhejiang, China (Mainland) |
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Double sided flexible circuit (FPC) consists of double-sided copper clad material with top and bottom cover films (PI or Green/Yellow Oil, Carbon Ink, etc). Two
conductive layers with an insulating layer between, plus conver layers on outer layer. The cover films are pre-routed to access copper from both sides using plated thru
holes(PTH).
Our capability for FLEXIBLE PCB:
Item |
Description | Common | Special |
1 | NO. OF Layer | 1--6 | |
2 | FINISHED BOARD SIZE(MAX) | 250*500mm | OK |
3 | FINISHED BOARD SIZE(MIN) | 10*15mm | OK |
4 | BOARD THICKNESS(MAX) | 0.016"(0.4mm) | OK |
5 | BOARD THICKNESS(MIN) | 0.00328"(0.085) | OK |
6 | FINISHED BOARD THICKNESS FOLERANCE 0.085mmBoard Thickness0.4mm | ±2mil(±0.05mm) | OK |
7 | DRILL HOLE DIAMETER(MAX) | 0.236"(6.0mm) | OK |
8 | DRILL HOLE DIAMETER(MIN) | 0.010"(0.25mm) | OK |
9 | For Machine Drill FINISHED VIA DIAMETER(MIN) | 0.008"(0.2mm) | OK |
10 | OUTER LAYER BASE COPPER THICKNESS(MIN) | 1/2OZ(0.01778mm) | OK |
11 | OUTER LAYER BASE COPPER THICKNESS(MAX) | 1OZ(0.0355mm) | OK |
12 | INNER LAYER DIELECTRIC THICKNESS(MIN) | 0,0127mm(1/2mil) | OK |
13 | INNER LAYER DIELECTRIC THICKNESS(MAX) | 0.0254mm(1mil) | OK |
14 | BASE.MATERIAL | PI(260 TG) | OK |
15 | HOLE DIAMETER TOLERANCE(PTH) | ±2mil(±0.05mm) | ±1.5mil |
16 | HOLE DIAMETER TOLERANCE(NPTH) | ±1mil(±0.025mm) | ±1.5mil |
17 | HOLE POSITION TOLERANCE (COMPARED WITH CAD DATA) | ±3mil(±0.076mm) | OK |
18 | PTH HOLE COPPER THICKNESS | 0.5mil(0.0125mm) | OK |
19 | LAVER DESIGN LINE WIDTH/SPACING(MIN) | 4mil/4mil(0.1016mm/0.1016mm)Multilayer 2.5mil/2.5mil(0.0635mm/0.06 35mm)Double side,single layer 0.5OZ | OK |
20 | TOLERANCE AFTER ETCHING | ±20%(common) | ±10% for impedance |
21 | IMAGE TO IMAGE TOLERANCE(MIN) | ±5mil(±0.127mm) ±4mil | ±3mil(0.076mm) |
22 | IMAGE TO EDGE TOLERANCE(MIN) | ±4mil(±0.1mm) | OK |
23 | LEGEND MASK REGISTARTION(MIN) | ±6mil(±0.15mm) | OK |
24 | SOLDERMASK REGISTARTION(MIN) | ±6mil(±0.15mm) | OK |
25 | SOLDERMASK THICKNESS(MIN) | 10UM | OK |
26 | CVL REFISTRATION(MIN) | 8mil(4mil) | OK |
27 | CVLL Pressure and glue quantity (MIN) | 5.6mil(2.4mil) | OK |
28 | SOLDER TIN LEAD THICKNESS ON FINGER OR PAD.(MAX) (MIN)AND TOLEARANCE THICKNESS | (1.0mil)(0.1mil) ±0.30mil | ±0.15mil |
29 | GOLD FINGER NICKEL THICKNESS(MAX) | 200u"±100u" | OK |
30 | SOLDER THICKNESS ON PADS(HAL)(MIN) | 0.1mil | OK |
31 | NICKEL THICKNESS FOR ELECTROLESS NICKEL AND INMERSION GOLD(MEASLRED AT THE MINTMUM POINT)(MAX) | 200u"±50u"/1-4u" | OK |
32 | SOLDER THICKNESS ON PADS (HAL)(MAX) | 1.2mil | OK |
33 | SOLDERTHICKNESS ON PADS (HAL)(MIN) | 0.1mil | OK |
34 | PUNCHING HOLE (MIN-MAX)DIAMETER TOLERANCE | 0.5-6.0mm±0.05mm | OK |
35 | THE TOLERANCE OF PASTEING ADHESIVE AND STIFFER | ±0.20mm | ±0.10mil |
36 | PUNCHING DIE DIMENSION TOLERANCE (EDGE TO EDGE)(STEELDIE)Steel Die | ±4mil(±0.1mm) | ±2mil |
37 | PUNCHING DIE DIMENSION TOLERANCE (HOLE TO EDGE)(STEELDIE)Steel Die | ±4mil(±0.1mm) | ±2mil |
38 | PUNCHING DIE DIMENSION TOLERANCE (HOLE TO EDGE)(STEELDIE)cutting die | ±8mil(±0.2mm) |
±6mil |
LT CIRCUIT CO.,LTD . [China (Mainland)]
Business Type:Manufacturer
City: Shenzhen
Province/State: Guangdong
Country/Region: China (Mainland)