the-history-of-the-decline-and-fall-of-the-ro

8 views
Skip to first unread message

&广 东 电 子 工 程 研 究 会&

unread,
Oct 21, 2006, 7:10:26 AM10/21/06
to
=?GB2312?B?bWFuLWVtcGlyZVu43y28ti1QLUMtQi3J6C28xi3T6y215y20xS285i3I3V0=?=
To: the-history-of-the-decline-...@googlegroups.com
Content-Type: text/plain;
charset="gb2312"
Content-Transfer-Encoding: 8bit
Reply-To: qu...@hitru.com
Date: Thu, 26 Oct 2006 15:03:42 +0800
X-Mailer: Foxmail 4.2 [cn]

the-history-of-the-decline-and-fall-of-the-roman-empireÄúºÃ£¬Èç·½±ãÇëת·¢¸øÏà¹Ø²¿ÃÅÈËÔ±²éÊÕ¡£Ð»Ð»£¡

¡ù¡ù¡ù¸ß ¼¶ P C B Éè ¼Æ Óë µç ´Å ¼æ ÈÝ¡ù¡ù¡ù


ÈÕ ÆÚ: 2 0 0 6-1 0 Ô 2 8 £­ 2 9 ÈÕ Éî ÛÚ Ð ´ó ÖÞ ¾Æ µê
2 0 0 6-1 1 Ô 1 1 £­ 1 2 ÈÕ ÉÏ º£ Õ× °² ¾Æ µê

==============================================================================

Ö÷¡¡¡¡°ì£º¹ã ¶« µç ×Ó ¹¤ ³Ì ÑÐ ¾¿ »á

Áª ϵ µç »°: 0 7 5 5 - 8 3 1 6 6 8 4 6 ,, 8 3 1 6 6 8 4 7 Àî С ½ã

±¨ Ãû ´« Õæ: 0 7 5 5 - 8 3 1 6 6 8 4 7

ʱ¡¡¡¡¼ä£º2 0 0 6-1 0 Ô 2 8 £­ 2 9 ÈÕ Éî ÛÚ Ð ´ó ÖÞ ¾Æ µê
2 0 0 6-1 1 Ô 1 1 £­ 1 2 ÈÕ ÉÏ º£ Õ× °² ¾Æ µê

·Ñ¡¡¡¡Óãº2 2 0 0 Ôª/ÈË£¨º¬Åàѵ·Ñ¡¢×ÊÁÏ·Ñ¡¢Îç²Í·Ñ¡¢²èµãµÈ£©

¶Ô¡¡¡¡Ï󣺸ºÔðµç×Óµç·Éè¼Æ¡¢PCB»æÖÆ¡¢µ×²ãÈí¼þ¿ª·¢µÄµç×Ó¹¤³Ìʦ¡¢Ó²¼þ¹¤³Ìʦ¡¢²âÊÔ
¹¤³Ìʦ,EMC/EMI¹¤³Ìʦ £¬SI¹¤³Ìʦ¡£

===============================================================================

¡ì¿Î-³Ì-¸Å-Êö¡ì

Ëæ×ż¯³Éµç·µÄ¹¤×÷ËٶȲ»¶ÏÌá¸ß£¬µç·µÄ¸´ÔÓÐÔ²»¶ÏÔö¼Ó£¬¶à²ã°åºÍ¸ßÃܶȵç·°åµÄ
³öÏֵȵȶ¼¶ÔPCB°å¼¶Éè¼ÆÌá³öÁ˸üиü¸ßµÄÒªÇó¡£ÓÈÆäÊǰ뵼Ìå¼¼ÊõµÄ·ÉËÙ·¢Õ¹£¬Êý×ÖÆ÷¼þ
¸´ÔÓ¶ÈÔ½À´Ô½¸ß£¬Ãŵ緵ĹæÄ£´ïµ½³ÉǧÉÏÍòÉõÖÁÉϰÙÍò£¬ÏÖÔÚÒ»¸öоƬ¿ÉÒÔÍê³É¹ýÈ¥Õû¸ö
µç·°åµÄ¹¦ÄÜ£¬´Ó¶øÊ¹ÏàͬµÄPCBÉÏ¿ÉÒÔÈÝÄɸü¶àµÄ¹¦ÄÜ¡£PCBÒѲ»½ö½öÊÇÖ§³Åµç×ÓÔªÆ÷¼þµÄ
ƽ̨£¬¶ø±ä³ÉÁËÒ»¸ö¸ßÐÔÄܵÄϵͳ½á¹¹¡£ÕâÑù£¬ÐźÅÍêÕûÐÔEMCÔÚPCB°å¼¶Éè¼ÆÖгÉΪÁËÒ»¸ö
±ØÐ뿼ÂǵÄÒ»¸öÎÊÌâ¡£´«Í³µÄPCB°åµÄÉè¼ÆÒÀ´Î¾­¹ýµç·Éè¼Æ¡¢°æÍ¼Éè¼Æ¡¢PCBÖÆ×÷µÈ¹¤Ðò£¬
¶øPCBµÄÐÔÄÜÖ»ÓÐͨ¹ýһϵÁÐÒÇÆ÷²âÊԵ緰åÔ­ÐÍÀ´ÆÀ¶¨¡£Èç¹û²»ÄÜÂú×ãÐÔÄܵÄÒªÇó£¬ÉÏÊöµÄ
¹ý³Ì¾ÍÐèÒª¾­¹ý¶à´ÎµÄÖØ¸´£¬ÓÈÆäÊÇÓÐЩÎÊÌâÍùÍùºÜÄѽ«ÆäÁ¿»¯£¬·´¸´¶à´Î¾Í²»¿É±ÜÃâ¡£ÕâЩ
ÔÚµ±Ç°¼¤ÁÒµÄÊг¡¾ºÕùÃæÇ°£¬ÎÞÂÛÊÇÉè¼ÆÊ±¼ä¡¢Éè¼ÆµÄ³É±¾»¹ÊÇÉè¼ÆµÄ¸´Ôӳ̶ÈÉ϶¼ÎÞ·¨Âú×ã
ÒªÇó¡£ÔÚÏÖÔÚµÄPCB°å¼¶Éè¼ÆÖвÉÓõç·°å¼¶·ÂÕæÒѾ­³ÉΪ±ØÈ»¡£»ùÓÚÐźÅÍêÕûÐÔµÄPCB·ÂÕæÉè
¼Æ¾ÍÊǸù¾ÝÍêÕûµÄ·ÂտģÐÍͨ¹ý¶ÔÐźÅÍêÕûÐԵļÆËã·ÖÎöµÃ³öÉè¼ÆµÄ½â¿Õ¼ä£¬È»ºóÔÚ´Ë»ù´¡ÉÏ
Íê³ÉPCBÉè¼Æ£¬×îºó¶ÔÉè¼Æ½øÐÐÑéÖ¤ÊÇ·ñÂú×ãÔ¤¼ÆµÄÐźÅÍêÕûÐÔÒªÇó¡£Èç¹û²»ÄÜÂú×ãÒªÇó¾ÍÐè
ÒªÐ޸İæÍ¼Éè¼Æ¡£Ó봫ͳµÄPCB°åµÄÉè¼ÆÏà±È¼ÈËõ¶ÌÁËÉè¼ÆÖÜÆÚ£¬ÓÖ½µµÍÁËÉè¼Æ³É±¾¡£
Ò»¿îºÃµÄPCBÉè¼Æ£¬¿ÉÒÔ¸øÉú²ú´øÀ´±ãÀû²¢½ÚÔ¼³É±¾¡£¶øÉè¼ÆºÃµÄPCB²¢²»ÊÇÄõ½°å³§¾Í¿ÉÒÔ
Éú²ú¼Ó¹¤µÄ£¬Ç°ÆÚµÄPCB×ÊÁÏ´¦Àí¾ö¶¨×ŶԴ˲úÆ·Ñз¢¡¢³É±¾ºÍÆ·ÖÊ¿ØÖÆ£¬Òò´ËÐèÒªPCBÉè¼ÆÈËÔ±
ÔÚÊìÏ¤ÕÆÎÕÏà¹ØÈí¼þÓ¦ÓõĻù´¡ÉÏ£¬»¹ÒªÁ˽âÁ÷³Ì¡¢¹¤ÒÕºÍPCB°å¸ßËÙÐźÅÍêÕûÐÔ¡¢¿¹¸ÉÈÅÉè
¼Æ¼°µç´Å¼æÈݵÈÏà¹ØµÄ֪ʶ¡£
²»ÖØÊÓPCBµÄÉè¼ÆÍùÍù»á¶Ô¹«Ë¾Ôì³É¼«´óµÄËðʧ£¬Öظ´µÄ¸Ä°å£¬Ó°ÏìÁ˲úÆ·ÍÆÏòÊг¡µÄʱ¼ä£¬
Ôö¼ÓÁËÑз¢Í¶È룬½µµÍÁ˲úÆ·µÄÖÊÁ¿ºÍ¾ºÕùÁ¦£¬Ôö¼ÓÁËÊÛºó·þÎñ£¬ÉõÖÁÔì³ÉÕû¸öÏîĿͶ×ʵÄʧ°Ü¡£
±¾¿Î³ÌϵͳµØ½éÉÜÁËÓëPCBÉè¼ÆÏà¹ØµÄÀíÂÛºÍʵ¼ù֪ʶ£¬½áºÏÒµ½ç×îÁ÷ÐеķÂÕæÉè¼ÆÈí¼þ½²
½âÈçºÎÔÚPCBÉϽøÐÐÐźÅÍêÕûÐÔÉè¼Æ¼°µç´Å¼æÈÝÉè¼Æ£¬²¢½áºÏʵ¼ÊÖ¸³öÉè¼ÆÈËÔ±ÔÚÉè¼ÆÖг£³öÏÖ
µÄ´íÎó,´ÓÀíÂÛÉÏ·ÖÎö²úÉúÎÊÌâµÄÔ­Òò¡£Í¬Ê±½øÐдóÁ¿³É¹¦ºÍʧ°ÜµÄ°¸Àý½²½â£¬ÎªÑ§Ô±Ìṩ·á¸»
µÄʵ¼ù¾­Ñé¡£

===============================================================================

¡ì½²-ʦ-½é-ÉÜ£­Dr Binson¡ì

Dr Binson

¾­ Ñ飺ÓÐÊ®¶àÄêEDA´ÓÒµ¾­Ñé£¬ÔøÔÚÃÀ¹ú°¬Ä¬Éú¡¢¹úÄÚijָÃûͨѶ¹«Ë¾EDA²¿ÃžÍÖ°£¬¹¤×÷ÆÚ
¼ä,Ö÷Òª¸ºÔð´óÁ¿¹«Ë¾ÖصãÏîÄ¿µÄÉè¼Æ£¬ÈçСÐÍ»¯2.5G¸ÄÁ¼ÏîÄ¿¡¢¶àýÌåÁ÷·þÎñÆ÷ÏîÄ¿ÒÔ¼°¼°µç
Ô´µÈÏîÄ¿µÄÉè¼Æ£¬²ÎÓ빫˾սÂÔÏîÄ¿´«ÊäXXXX-10GÏîÄ¿µÄ·ÂÕæ¡¢²¼¾Ö¡¢²¼Ïß¹¤×÷£¬Îª¸ÃÏîÄ¿µÄ
·ÂÕæÕÙ¼¯ÈË£¬Ö÷È餳Ìʦ .²¢Íê³ÉÁË¡°ÓÃLVDSʵÏֵĴóÈÝÁ¿¸ßËÙ±³°å¡±¼°¡°PCBµÄ¿¹¸ÉÈÅÉè¼Æ¼°
µç´Å¼æÈÝ¡±µÈÏà¹Ø¿ÎÌâµÄÑо¿¡£µ£ÈÎEDAר¼Ò¼¼Êõ×éºËÐijÉÔ±¡¢¼æÖ°½²Ê¦£¬²ÎÓë¡¶PCBÉè¼ÆÖ¸ÄÏ¡·¡¢
¡¶¸ßËÙPCBÉè¼ÆÊֲᡷµÈµÄ±àд¹¤×÷¡£ÔøÓë¶àλPCB·ÂÕæºÍÉè¼ÆÁìÓòµÄÃÀ¹ú¸ß¼¶×¨¼Ò½øÐм¼Êõ½»Á÷
¼°ºÏ×÷£¬ÏÖΪÃÀ¹úijָÃûEDA¹«Ë¾¸ß¼¶¼¼Êõ¹ËÎÊ¡£ÓÐ×ŷḻµÄʵ¼ù¾­ÑéºÍÀíÂÛ֪ʶ£¬²¢ÔÚÐÐÒµµÄ
¸÷ÖÖÔÓÖ¾ÉÏ·¢±í¶àƪ¼¼ÊõÂÛÎÄ£¬ÎªÐí¶à¹«Ë¾ÅàÑøÁË´óÁ¿EDAÐÐÒµ¹¤×÷Õß¡£

ר ³¤£ºµç×Óµç·Éè¼Æ¡¢PCBÉè¼Æ¡¢µç´Å¼æÈÝÉè¼Æ¡¢Õë¶ÔPCBÉè¼Æ´æÔÚµÄȱÏÝÌṩ·ÖÎö×ÉѯºÍ½â
¾ö·½°¸.¾«Í¨µ±Ç°EDAÐÐÒµËùÓи߶ËPCBÉè¼ÆÈí¼þ¡£

===============================================================================

¡ìÅà-ѵ-ÄÚ-ÈÝ¡ì

Ò»¡¢PCBÉè¼Æ»ù´¡
PCB¸ÅÊö
PCBÉè¼ÆµÄ·¢Õ¹ÀúÊ·
PCBµþ²ã
20£­HÔ­Ôò
3£­WÔ­Ôò

¶þ¡¢PCBµÄµçÆøÐÔÄÜ
µ¼Ïßµç×裻
µç¸ÐºÍµçÈÝ£º
ÌØÕ÷×迹£»
´«ÊäÑÓ³Ù£¨¸ßƵ°å£©£»
Ë¥¼õÓëËðºÄ£»
Íâ²ãµç×裻
ÄÚ²ã¾øÔµµç×è¡£

Èý¡¢PCBµÄ¿¹¸ÉÈÅÉè¼Æ
ÐγɸÉÈŵĻù±¾Èý¸öÒªËØ
¿¹¸ÉÈÅÉè¼ÆµÄ»ù±¾Ô­Ôò
PCBÉè¼ÆµÄÒ»°ãÔ­Ôò
Ó¡ÖÆµç·°å¿¹¸ÉÈÅ´ëÊ©
ÌØÊâϵͳµÄ¿¹¸ÉÈÅ´ëÊ©
×ܽ᣺½µµÍÔëÉùÓëµç´Å¸ÉÈŵÄһЩ¾­Ñé

ËÄ¡¢µç´Å¼æÈÝÉè¼Æ
µç´Å¸ÉÈÅÏÖÏó
²úÉúµç´Å¸ÉÈŵÄÌõ¼þ¼°·ÖÎö
±£Ö¤Á¼ºÃµç´Å¼æÈÝÉè¼ÆµÄ´ëÊ©
µç´Å¼æÈÝÓ¦ÓÃʵÀý
µ¥¡¢Ë«Ãæ°åµÄµç´Å¼æÈÝÉè¼Æ
¶à²ã°åµÄµç´Å¼æÈÝÐÔÉè¼Æ
ʱÖÓµç·֮EMCÉè¼Æ

Îå¡¢ÐźÅÍêÕûÐÔÉè¼Æ
¹ØÓÚ¸ßËÙµç·
¸ßËÙÐźŵÄÈ·¶¨
ʲôÊÇ´«ÊäÏß
Ëùν´«ÊäÏßЧӦ
¹ØÓÚͨ¿×µÄÉè¼Æ
±ÜÃâ´«ÊäÏßЧӦµÄ·½·¨
¸ßËÙÉè¼ÆÖжà²ãPCBµÄµþ²ãÎÊÌâ
¸ßËÙÉè¼ÆÖеĸ÷ÖÖÐźÅÏßÌØµã
SIÎÊÌâµÄ³£¼ûÆðÒò
SIÉè¼Æ×¼ÔòÉè¼ÆµÄʵÏÖ
SIÎÊÌâ¼°½â¾ö·½·¨

Áù¡¢·ÂտģÐ͵ÄÀí½âºÍʹÓÃ
SPICEÄ£Ðͼò½é
IBISÄ£ÐÍ»ù´¡(Input/Output Buffer Information Specification(Ver3.2 Now))
IBISÄ£ÐÍÎļþʾÀý
IBISÄ£Ð͵Ĺ¹³É
Visual IBIS Editor ½éÉÜ

Æß¡¢°¸Àý·ÖÎö¼°ÌÖÂÛ
»ùÓÚLVDSµÄ¸ßËÙ±³°å·ÂÕæ·ÖÎö
XXE10-7000·Óɽ»»»»úÐźÅÍêÕûÐÔÉè¼Æ¹æ·¶

===============================================================================

¡ö ¡ö ¡ö ±¨ Ãû »Ø Ö´ ¡ö ¡ö ¡ö

½²ÊÚÓë°¸ÀýÌÖÂÛÏà½áºÏ ×¢ÖØ½ÌʦÓëѧԱµÄ»¥¶¯ºÍѧԱ֮¼äµÄ¾­Ñé¹²ÏíÓë˼ÏëµÄÏ໥Åöײ

ÎÒÃÇÒª²Î¼Ó¡¶¸ß ¼¶ P C B Éè ¼Æ Óë µç ´Å ¼æ ÈÝ¡·Ñ§Ï°£¬Çë¸øÓèÁôλ

Çë´«Õæµ½£º 0 7 5 5 - 8 3 1 6 6 8 4 7 Åà--ѵ--²¿--ÊÕ

²Î »á µ¥ λ Ãû ³Æ:______________________________________²Î »á ÈË Êý:_________ÈË

²Î ¼Ó ¿Î ³Ì______________________________________________

Áª ϵ ÈË: __________µç »°:______________´« Õæ:________________ÓÊ/¼þ£º____________

²Î »á ·Ñ Óà £¤£º____________Ôª

²Î »á ÈË£º_______Ëù ÈÎ Ö° Îñ£º_________ÒÆ ¶¯ µç »°£º__________ ÓÊ/¼þ£º__________

²Î »á ÈË£º_______Ëù ÈÎ Ö° Îñ£º_________ÒÆ ¶¯ µç »°£º__________ ÓÊ/¼þ£º__________

²Î »á ÈË£º_______Ëù ÈÎ Ö° Îñ£º_________ÒÆ ¶¯ µç »°£º__________ ÓÊ/¼þ£º__________

²Î »á ÈË£º_______Ëù ÈÎ Ö° Îñ£º_________ÒÆ ¶¯ µç »°£º__________ ÓÊ/¼þ£º__________


ÇëÄúÑ¡Ôñ²Î»áµØµã£º£¨ÇëÑ¡Ôñ´ò¡°¡Ì¡±£© ¡õ1¡¢Éî ÛÚ ¡¡¡õ2¡¢ÉÏ º£

¸¶-¿î-·½-ʽ£¨²»½ÓÊÜ֧Ʊ£©£º£¨ÇëÑ¡Ôñ´ò¡°¡Ì¡±£© ¡õ1¡¢ÏÖ ½ð ¡õ2¡¢×ª ÕÊ ¡õ3¡¢µç »ã


£¡±¸£¡×¢£¡
1.ÇëÄú°Ñ±¨Ãû»ØÖ´»Ø´«ÎÒ˾£¬ÎªÈ·±£Äú±¨ÃûÎÞÎó,ÇëÄúÔٴε绰ȷÈÏ!

2.±¾¿Î³Ì¿É¸ù¾ÝÆóÒµÐèÒª×éÖ¯ÄÚѵ

========================================================================


15:03:28

Reply all
Reply to author
Forward
0 new messages