屏蔽罩夹子应用设计指导

1、omu nKPOCONSCO 丄TDSHIELD CAN CLIP ENGINEERING GUIDE屏蔽罩夹子应用设计指导2011.03Shield Can Clip (PTC Series)Major Application Cellular PhonePMP WIBRO USB DONGLE GPS MODULE NAVIGATION HSUPA/ HSDPA module MP4PON HIPASS UMPCKey Features Efficient use of the PCB space To increase productivity by mounting the Clip

2、automatically Reduction in the term and the expense for the development by removing the frame Cost reduction Efficient purchase by standardization Easy repairsApplication exampleShield Can ClipHOLEEmbossing ClipApplication noteBig size shield can which cover whole PCB had better separate to 2 piece

3、of shield can.The minimum gap size between clip and clip is 0.3mm.The clip pad keeps 0.5mm distanee from PCB edge.Clip should be separated from Magn etic strip comp orients as far as possible.When the gap size between shield Can and plastic cover is less than 0.2mm, it is perfect for drop test.Pocon

4、s中国代理速盈科制作omu nKUnderfillWhen you artwork clip at near memory chip1) in case of sealing with Vesin keep 0.4mm distanee from IC2) in case of no sealing, 0.150.2mm distanee from IC is enough * Sealing with Resin,they call underfill for protecting memory on drop testPocons中国代理速盈科制作#omu nKPocons中国代理速盈科制

5、作#omu nK0.4mmPocons中国代理速盈科制作#omu nKClip placementCase 1) when designing PCB with 4 pcs of clipNo goodDo not place the clip at the center position. Because it is not perfect for drop test and inserting shield can by manual.Recommended placement)It is good for assembly and drop testPocons中国代理速盈科制作7omu

6、 nKPocons中国代理速盈科制作#omu nKPocons中国代理速盈科制作#omu nKClip placementPocons中国代理速盈科制作omu nKPocons中国代理速盈科制作omu nKCase 2) artwork with 6 pcs of clip三三三一 r淞田也Case 3) artwork with lOpcs of clip especially in RF partmr:二亠Irt. 三三三三灵申一 W=_M二： IMore clip is better for EMI shieldingPocons中国代理速盈科制作omu nKClip applicati

7、on noteCase 4) With screwWhen designing PCB with big shield can, you can use clip and screw at the same timeScrew holeShield Can design referenceWhen you use our clip, youd better cut out 0.270.30mm height, 7mm length of can (refer to the drawing below) which is part of clip and can contactedPocons中

8、国代理速盈科制作11omu nKApplication ezxample for base bandAs you can see, you can use the PCB space efficiently in base band part.clip placement Guide considering Noise emmission Clip should be placed within 20mm distance not to affect the wireless sensitivity-If shield can side length is less than 20mm, th

9、en clip should be placed at center.- When you consider assembly, clip should be placed within 5mm distanee from cor ner:-Clip should be placed at shortest distanee from hot spotWithout SHIELD CANFrame type SHIELD CANCLIPGSM850110dBuV93dBuV90dBuVPCS105dBuV80dBuV82dBuV according to the evaluation resu

10、lt, both have same shield effectiveness.Pocons中国代理速盈科制作13omu nKAppendixPocons中国代理速盈科制作15omu nKPocons中国代理速盈科制作#omu nKAppendixCUSTOMER日20Taping 从迟（2：1）L800,35Dz30RECCMMEND PCB l-AYOJTNOTSS.1. MATERIAL：SUS301.2. MAHRIAL 7HICKNESS：0.15t3. Rntshed : Sn plating on both sfdes.4. Packlng materials.Reel:Nipfi Q.3t.-.Cover tape:PS. -.QTORed ; lOOOOea5. Availabl0 shidd case Eidcmssm.15 孟TOLERANCES l/JLESS OTHERWISE SPECIFIED-I MCL I如盈OPTIONa.o0.20-000.1UH EARS.