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1、?Characteristic Impedance and Control of PCB1?Characteristic Impedance and Control of PCB?2003-11 ?Characteristic Impedance and Control of PCB2?1?5? PCB ?1? ? ?2? ? Z ?2? ?3? ?3? ?2? !#$%&?4? ?AOI ?1? ? !%&()?5? ?*+?2? ?%,-$.?/0?6? ?1234?3? ?56789:;6?&?8? ?AB3?CDEF?GH6?IJKLM4? Z0$?4N?O?PQ?1? ? 4 RS0
2、?1? ?Z0$?4?TUVWX?2? ?YO?PZ?2? ?.? Z0_?3? ?_34TU?ab?3? ?cd? Z0_?4? ?TUefghfiejklm?4? ?n&o? Z0_7? Z0?pq?Characteristic Impedance and Control of PCB3Characteristic Impedance and Control of PCB?1?1? ?rY?Y?fst?Yun&vwxyz?|h?|C?h?!C ?h0G?C? ? ?$?Y?K?+?PQ?;?n?4?-?hn&? ?hn? ? ?Ph?PQ?;? ? ?!#?$%&?(?)?*+,?-.?/
3、?0*1?2?3?2?45?6,(?789?:;1?2? 3?2? ?ABC Z =?EF 9G?H?I?HJKIJ?D?D9L?IHLM ?NO?PQ%RST?9 UVW?XY?Z?_a?bWcTcY?:;deQf?gh?_?ij?Y?k?lmn?op? q9r ?gst?uv?pwV_?xyz|?z%&?q9r ?g?B?;B?|? ?H?D?D?J?M?q?MK?d?_%&?_?NO? ?%&?q9r ?g?!? ? ?450?0PQ?g?NO?45%B?Yb_Y?_?_gd?_?gx.?B ?“?GLHI ?|fifl?g ?%”lNO?m?&?PQd+?*?B% ? q9r ?g?_
4、?B?|?_gh?g?g?A%2?a?Y%?b%?CR2+(XL-XC) 2?Characteristic Impedance and Control of PCB4?*?Y?_a? q9r ?g_n?T?Y?_a?T?|?.%:?g?Wc?c?%?XY q9r ?gW|?gB*?%?a?|?g?WR?bW?k?&?d q9r ?g_?op?z? %?V?V?V?V?9ML? ?I?JI?GJ?D?baa?bW?d q9r ?g?_?B?g?g? gC!?_g?Tranamission Line? ?h#?g?g?A%$IPC-2141 ? 3.4.4 X?%?d?gh_?&?g?WR? 1/
5、7 ?g?_g% ? ?(*F)*?g?R?_?1/10 ?+?_g,?% ?-.?/?CCOAXIAL STRIPLINE MICROSTRIP COPLANAR?Characteristic Impedance and Control of PCB5. 1k?_a? 10MHZ?; PCB ?g? 50cm,B?Z01NO?CC=D?29“D?2?“K?“?“K?2?_g=?g?W L/?=50/3000=1/60 ?k?_a? 1GHZ?;?g? 10cm?B?01NO?5?=9“D?2?“?2?D?6782?978?_g2:“?2?“?2“3?g;+?_g,?_gh?p?ij?T?%&
6、?gPQNO?AB?C?DE%. 3k?F?a? 300MHZ?gGHZ?5?=D9“D?2?“K?“?“K?2?D?g? :2?“I2?“I2J8KD?3% L14.28cm?;PQNO?m% L14.28cm?&?g?L?g?01 Z0%M?NHO? 200MHZ a?PCB ?g?P21.43D?4?g?+?_g,?%? ?d?Qh?RSTUV?MaxWells Equation?WX?YZ?dh?FbW VS?b C VY?;_!?H?/_(?D?V_bW?;?Y?NO?m?Y?NO?”?H l?ML?H ?_bW?%?J flB? ? ?mn?V?H ? J8I?_bW? KD?“?
7、K%?AN?H%? ? !#$?%?&? ()? ? q?IJ?DqHL ? 9q? ?a? ?978?&B?st?bW%?V?n?f g?bW? kK978%?:B?f g?n?p:eY?z;?%:?q9r “g?fi?%Ybfl?0?R?|?Re/“?“% PCB ”e/“?Z?Yb?dR Au ?R?g?%?B?_gc?c?% PCB g? LP?/7?g?#? 1/7? ?d 200MHZ a?g L ?P21.43cm,d 300MHZ a?g L ?P14.29cm?oN?4?gT”?+?_gT,?%? PCB GHVYW“?T?&?%?Build-up ?g?g?GH?o?.b?
8、i%? ?d?gU;?g?p?1|?3?=;p?&B?y?:?:?d?g?(G?%?f ?Ug?N?/ 450?g?W?-%?U? SMT ?p?1?3?V BGA ?n?N?*?%? ? ?gh?p?g? d?(%?d?g?g?d?op? ?=;wV?C?%/?fl?l?_g?W?l PCB ?%?2? ?g?gNO?NO?d?%?3? U?g?gZ?(%?_gGHc?c?%3?1? ?G?(Driver)?i? PCB _g?j?Receiver? %?deQf?ghF?NO?m Z0”?h?p?_%(?)?eQf?Z0?+?p?fi?Attenuation?|?45?xy?p?%/ 2?
9、34567?89?:;?!?ABC?DEFGHIJKLMNOP?QRSTU?VWX4.YZ? x?fl?PQ? f? Z0?% ?Y? _bW?p? :; PCB ? Z0?#XY?j?%Z0?f?O?BYb|Y?%?B Open/Short ? E-test ?%Z0?fB?; 100%Retlected Energy?!?We Z0?uvc?!?WN?Y? Z0m,?W?oe Z0)?%?!e? Z0)?/B?!eQw#?g?O?g?TXY|PQZ0;?)?%?4? Z0?PQ Z0?B?75?50?28? ?$10%|$%87H&8J5.98H0.8W+T?0.20 0.40 0.60
10、0.80 1W-0.20HDJ8?8?J?W(mm)?0.20 0.40 0.60 0.80 1W-0.20H-0.25HJ8?Mioroatrip StriplineMioroatrip Stripline?Characteristic Impedance and Control of PCB9q9r he Z0uv:?()%;gPQBAh#A%?Z02DDDDDDDDDDDD“?DDDDDDDDDDDDDDDDDDH!7?WDDDDDDDD?DDDDDD?gW?g?Wg ? c?Z0c?gWNXYNO?%g?og?oe? Z0uv?%/ % ?C?”?Z0?g ? ?*;b?:?PQ Z0
11、?”xPQg%+,?Yg?Yb g?_g W ? 0.10,0.13 mm%-?gPQ.+?$20%e/_g?!? PCB ?g?g? 1/7?N?e* Z0PQ?_g?PCB ?gW.+$20%?:&? Z0+?$10%?( Z0+0p?W?;.?%-.C k PCB ?W? 100um(0.1mm)? g? 20 um? ?W? 100um(0.1mm)? 0GV? PCB ?W12? ?g?o$20%? Z0?$10%?5?C?C?Cg W0=100um,W1=80um,W2=120um,?W H=100 um?C87H&8J5.98H0.8W+T?0.20 0.40 0.60 0.80
12、 1ge Z0?uvH-0.25HDJ8?8?JgmmZ0 =87H&8J5.98H0.8W+T/ n87H&8J5.98H0.8W+T/ n87H&8J5.98H0.8W+T/ nZ01Z02= = 5.98H0.8W1+T/ n5.98H0.8W2+T/ n= 59884/ n598116/ ni1.9631.640i1.20?Characteristic Impedance and Control of PCB103 Z03?$10%?j?4$10%j?NO? Z04$10% ?g.+”?5?”6?$20% ?%?PQ Z0P5%?g+”PQP$10%:?78?A?9: Teflon P
13、CB ?k; FR4 PCB?g$?8?:BPQNO? Z0m%5? PCB ?1? ?p?21$2q?55$5%? ?gA?BC%?2? ? ?!DffE?*?F12?F?0GH?I?G?DffE Z0?JM?coupon?3? ?#$xAK?LM?Nf?gEO?P?Q?QC RSg?PQd? ?$10%|$0.02mm?4? ?AOI ?fTU?gfi?Vfi?e 2GHZ Yb? 0.05mm ?fi”?NWX%PQg?YBZ%?5? ?%&g?:?uvH?_;?H p?;%PQ?W+%:?f?12?W?o?puv Z0%?6?()?l+?fl?%?H ?e?f?Qw q9r ?e?M?
14、:? Z0?H uv?%?7? ?*+f ?p?g?Z0m? 1-3$?Q?W?aB?uv?% k%5048464442400 5 10 15 20 25 30Charactarlstlc Impedance (ohm)? 6? 1?3? ?!?#$%?&(?Characteristic Impedance and Control of PCB11?g? ?b?Bgh?H2? Z0m?Y%?d?n Z0mn? 1?3?:B?cd?H ? J8?ghY?%?,? ?-./V?f?ef?:f?H2I%?e Z0p?T?g?DE%1?0?2? ?3? 4 567f?_g?NO? Z0+,PQ?!BC
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18、a 300MHZ=3?108 L1/7?3?1010?/?3?108?=14.29cmB?%?g? 14.29cm ?300MHZ ?_gZ?NOPQ%&?&eQfZ Z0%? Z0Mf%?lC?g?Z? 150cm?%;B?_g?B? 150cm?d?g?_g?0.5cm%?g?_g?;?o?6,%?g?W? Z0m?Z0c?gc?% ? 7?“ht? TDR?(?g/Mr?%?2? NO? 7&B? IEC-326-3 JC;GH? Z0bf?Characteristic Impedance and Control of PCB13*N?*?CE polar CITS500 ?/ 8? ?
19、S Tektronix TDS 8000 ?/ 9? ?Agilent?4?TDR 2000 ATE %? polar?S?i!?4?H.P?S% 8E Polar 9TDS8000 ”M?S ?Polar ? Z0?jH?TDK? ?PC?NQ?y 1 ?eQfMfT?V% ?/ 10?Tektronix ? Z0?B?TDK ?d?%A?B?C?D? 10 ?Characteristic Impedance and Control of PCB14NO? Z0?B TDK?jH?eQMf?coupon?ij?/Y?|Yb? %?j?T?o?fln?HO?_?NO?m Z0T%,?;?C?J
20、C? Airlineaaghg?g? Marry Microwave X?JC?m? 28$?50$?75$?JC Airline ? 1500a2000USD%Z0=Z?V?/?2V?-V?Z?aCNO?m V?aC? V?a?g?/?Z% Z0? PCB?; 100%?|RS%e?_g?fT?g?g?%?E Polar NO?Mf?EF? %?Characteristic Impedance and Control of PCB15? COUPON ? COUPON ?1?2?COUPON ? /?!#$?%&?(? /?!)*?+?3?,-./0?.102.3456789 THERMAL
21、 PAD4?8:;? PAD?A.B9? PAD?4?CD2?.E,-.CFG34COUPON ?HIJKLM?N?O?PQRL;SOTUVW?COUPON (?X?AV#?( COUPON ?X? PYZV1? COUPON !#$ 100mil?2?_ PAD (a/ 60mil478/bc4?8/dc?3?_ PAD 56(?(a/ 0.85mm-1.05mm? Pefgh MI i?j?k_(lmV4?2n/o?4? / 20mil4!?_ 20mil?5? #$?%&?(? )*?+?6?7.Bp.?Jq?r4stuvw?100mil15L20mil?Characteristic I
22、mpedance and Control of PCB16BVx?( COUPON ?X? PYZV1?COUPON ? /?!#$?%&?(? /?!)*?+?2?%&?(.yz|.39? COUPON?3?A?#?( COUPON ?X?|? AV#?( COUPON ?1?.? L2?L3 /?.4C/S ? 8mil ? 5mil ? %&?S/S ? 5mil (?%&?4?3 COUPON ?YZ?C/S L2 L3 S/S2?.? L2&L5 /?.4C/S ? S/S ? 5mil ? %&?L3&L4 . 6mil (?%&?4?3 COUPON ?Y?200mil400mi
23、l?Characteristic Impedance and Control of PCB17 C/S L2 L3 L4 L5 S/SBV#?x?M3?3 COUPON ? LY81234A?a)C/S&S/S ? 5mil ? 8mil (?%&? P,- L2&L7Vb)L3&L6 . 5mil (?%&? P,- L2&L7Vc)L4&L5 . 5mil (?%&? P,- L2&L7Vd)L4&L5 . 5mil (?%&? P,- L3&L6Ve)L4&L5 . 5mil ? 9mil ?!?x? P,- L2&L7V?iG|? COUPON ?YZCOUPON 1 L4&L5 ,-
24、 L3&L6 ?C/S&S/S ,- L2&L7 ?PCB?D: Documents and SettingsserverMy DocumentsJ01 ?D: Documents and SettingsserverApplication DataMicrosoftTemplatesNormal.dot?Characteristic Impedance and Control of PCB?1?2003-11-16 14:22?67 !#?2003-11-29 11:26 !#?w95$%?&(?677 )* !+,(?2003-11-29 11:28+,-./012?1732?1,600 456372?9,121 456
