The business road to Smiery for PCB and PCBA

2015年5月20日星期三

China PCB , Is it rubbish ?

China PCB is not rubbish , why ? Thinking that if it is rubbish , why APPLE place big order with China factory ? People around the globe use China PCB as long as they purchase APPLE's products , right ?

PCB's manufacturing is brought to China from Eurpean . Making PCB cause bad enviroment problem . In the pioneering days , they make PCB at the sacrifice of enviroment . After long time , their PCB factory grow up to agianst the competition of European contry . The motto " made in China " is populized around the globe . So China PCB should be good .

Actually , bad words still follows China's supplier , such as many scammer China supplier , rubbish PCB . For this , I think one reason may possible be that the one appreciate the " cheaper PCB " , he cost less and have much strict specification on the boards . such as you pay $10 for 10 pcs prototyping boards , the factory fabricates PCB follow IPC class 1 as default , however , you are in favor of IPC class 2 . The difference between class 1 and class 2 is , for example , outline tolerance , one board size you need 10.5*10.5 cm , class 1 , the finished PCB size is (10.5+/- 0.15) * (10.5 +/-0.15 ) , class 2 (10.5+/- 0.1) * (10.5 +/-0.1) .

Indeed , there are scammers in China , you wire the payment to them , they didn't send you the goods . In this condittion , you can get help from paypal , you can pay it by paypal .

All in all , China is a big country , there are lots of good produced . Be confidence with the supplier and careful in the trade . Paypal can help you access to China market safely .

Sunny
sunny@smiery.com
have a nice day

2014年6月23日星期一

Smiery PCB Capability

Smiery are credited to up-to-date technology in PCB manufacturing , the capability of the PCB is upgrade to upper , here you can find the news below :

PCB Capacity

Item

Description

Remark

Layer

1- 20Layers (FR- 4, FR- 406, 370 HR)
1- 2Layers (Rogers, Aluminum/ Copper Base, TEFLON)

Material

FR- 4, FR- 406, 370 HR; Rogers4003; Rogers4350
Aluminum and Copper base;Teflon

Finish Thickness

Finish Thickness: 0.008" - 0.275" (0.2mm- 7mm)

Min Thickness

2- layer: 0.008" (0.2mm)
4- layer: 0.016" (0.4mm)
6- layer: 0.024" (0.6mm)
8- layer: 0.032" (0.8mm)
10- layer: 0.04”(1mm)
More than 10layers (0.5Xnumber of layers X0.008”)

Min Trace
Width / Min Clearance

Inner Layers(trace width/clearance)	Outer Layers(trace width/clearance)
0.5oz: 4/ 4mil	1/ 3oz- Hoz: 4/ 4mil
1oz: 5/ 5mil	1oz: 5/ 5mil
2oz: 5/ 7mil	2oz: 5/ 7mil
3oz: 7/ 8mil	3oz: 7/ 8mil
4oz: 10/ 10mil	4oz: 10/ 10mil
5oz 12/ 12mil	5oz: 12/ 12mil
6oz/ 15/ 12mil	6oz: 15/ 12mil

Partial 3mil line width and 4mil clearance is allowed

Aspect Ratio

Board Thickness	Min Hole Size
8mil - 62mil	6mil
80mil	8mil
93mil	9mil
125mil	12mil

1:10

Min Hole Ring

Inner:	Outer:
0.5oz: 5mil	1/ 3oz -0.5oz: 4mil
1oz: 6mil	1oz: 5mil
2oz: 8mil	2oz: 7mil
3oz: 12mil	3oz: 10mil
4oz: 15mil	4oz: 16mil
5oz: 18mil	5oz: 18mil
6oz: 20mil	6oz: 20mil

Copper Thickness

Inner: H0.5oz, 1oz, 2oz, 3oz, 4oz, 5oz. 6oz
Outer: 1/ 3oz, 0.5oz, 1oz, 2oz, 3oz, 4oz, 5oz, 6oz

Standard Stack Up

Min Hole Size and Tolerance

Min Finish Hole: 6mil
Hole Tolerance: ±3mil

Thickness of Plating Layer

Copper Thickness: 20um -35um	Tin 5 -20um
Immersion Gold: Nickel 100u" -200 u"	Gold 2u" -4u"
Hard Plated Gold: Nickel 100u" -200 u"	Gold 4u" -8u"
Golden Finger: Nickel : 100u" -200 u"	Gold : 5u" -15u"
Immersion Silver: 6u" -12u" OSP: Film 8u" -20u"

Solder Mask Color

Glossy: Green, Black, Red, Yellow, White, Purple, Blue
Matt: Green, Black

Solder Mask Resolution

Solder Mask Thickness:	0.2mil -1.6mil
Solder Dam:	Green 7mil /Other Color 8mil
Solder Mask Hole Plug Diameter:	10mil -25mil

Silk Screen Color

White, Black

Profile

Punch Tol: ±5mil
CNC Tol: ±5mil	Slot Min: 32mil
V- CUT Tol: ±10mil	Slot Min: 32mil
Bevel Edge: ±5mil	Angel: 15°, 20°, 30°, 45°, 60°

Bow and Twist

SMT ≤0.75%
None SMT ≤1%

Accept Standard

IPC Class 2; IPC Class 3; ISO9000

more details >>

2014年4月20日星期日

Your option for PCB Prototyping and PCBA service

I am Sunny .

I am glad to be here with you to introduce a good IT company to you ,Mier Technology Co.Ltd . Mier is a company that provide pcb manufacturing service and pcb assemble service for R&D member and enterprise . With it's reasonable price , good quality , on-time delivery , and wide range of option for pcb manufacturing and pcb assembly , Mier has been sourced by R&D member .Mier has its own special service : Purchasing agenda service .This service bring convenience to customer who shops in China . Through this service , customer can get additional value to their order . Mier is in charge of contacting and negotiating the price and technology or some the thing with seller that customer ask , when Mier gets the goods from the seller , they package the goods and pcb together in one packages to ship .By this way , Mier can help customer save a considerable freight .This service is popular by ones who purchase from China frequently .

Hot option for PCB prototyping service :

Description : Mier provides a wide range of option for pcb maunfacuting , you can find it at our website : http://www.smiery.com/purcha.aspx .The following form shows our hot option .

	5cm x 5cm	5cm x 10cm	10cm x 10cm
Qty	10pcs	10pcs	10pcs
Tech	Standard specification :	1.6mm ,green ,HSAL,100%	E-TEST
Price	$9.9	$12	$15

Special offer :

Description : Mier has a wide option for high-tech pcb manufacturing in price and technology . We are glad to check and analysis whatever kind of gerber file and specification , because it help us wide and updating our manufacturing process in order to keep pace with sales market .

Technology	v-score ; table rout , hight tg material ; 2oz copper thickness ;matt color ;micro-via hole ;Selective ENIG
Purchasing Agenda	Components ; display ; sensor ;wifi ; tablet.......
Size&Qty	gerber size ≤60cm for 4layer and 2layer ; Special price for any gerber size &quantity

On-time delivery

Description : Mier has 2 factory for PCB manufacturing . The one for normal PCB is top one in ShenZhen .The turn arounf time is fast . Mier has one factory for pcb assemble , this factory work with Konka ,which is top 500 enterprise in the world . With its special technology , the factory assemble pcb with good quality and fast turnaround time .