Ib tug npaj lub neej yuav ua rau tib neeg xav tias comfortable.Naturally, lub tswv yim npaj PCB tsim yog tseem yuav yaum, thiab qhov layout engineer yuav ua tau tsawg lug.
Cov txheej naj npawb ntawm cov PCB board yog feem ntau tsis yog txiav txim nyob rau hauv ua ntej, nws yog npaj los ntawm engineer tej board, thiab tag nrho cov xov tooj ntawm cov khaubncaws sab nraud povtseg muaj ntawm tus xov tooj ntawm lub teeb liab khaubncaws sab nraud povtseg thiab tus naj npawb ntawm khaubncaws sab nraud povtseg ntawm cov fais fab mov.
1. Npaj ntawm lub hwj chim mov thiab stratum tooj
Tus naj npawb ntawm cov khaubncaws sab nraud povtseg ntawm lub hwj chim mov yog tsuas yog txiav txim los ntawm tus xov tooj ntawm hom ntawm lub hwj chim mov, tis, load peev xwm, kev kawm ntawv index ntawm ib board thiab tus nqi ntawm ib board.The chaw ntawm lub hwj chim dav hlau xav tau kev pab kom los siav ob tug mob: lub hwj huam mov yog tsis interlaced.Avoid tseem ceeb ntoo khaub lig-seem ntawm ib sab khaubncaws sab nraud povtseg.
Cov txheej tooj chaw ntawm lub hauv av yuav tsum xyuam xim rau cov ntsiab lus nram qab: lub ntsiab pab kiag li lawm yuav tsum tau muaj ib tug kuj tiav av dav hlau nyob rau hauv lub ntsej muag ntawm lub thib ob txheej; tseem ceeb Pib ntsais koj teeb xws li kev kub ceev, siab zaus, moos, etc.Main fais fab mov thiab av dav hlau ceev coupling, txo lub hwj chim dav hlau impedance thiab thiaj li nyob.
2. Teeb liab txheej tooj npaj
Thaiv raws yog feem ntau tseem ceeb tshaj uas txiav txim tus xov tooj ntawm lub teeb liab layers.It yog ib qho tseem ceeb kom paub seb puas muaj yog ib tug sib sib zog nqus BGA thiab connector rau lub rooj tsavxwm, thiab qhov tob ntawm BGA thiab tus PIN yov ntawm BGA yog cov tseem ceeb los mus txiav txim tus naj npawb ntawm BGA line.For Piv txwv li, BGA ntawm 1.0mm yuav hla ob kab nquag, 0.8mm BGA ntoo khaub lig qhov tsuas dhau ib kab, thiab tus naj npawb ntawm kab nruab nrab ntawm ob kab yog heev different.The connector mas suav tias yog nws tob, uas yog ib tug khub ntawm differential kab nruab nrab ntawm ob qhov.
Ob, peb yuav tsum xav txog cov xov board high-ceev teeb liab channel, vim hais tias thaum high-ceev teeb liab ua yuav tsum tau ntawm cov tej yam kev mob yog xav paub ntxiv, yuav tsum xav txog ib tug ntawm daim tw tshev, kab yov, xws yam li cov kev siv dav hlau, li ntawd, koj yuav tsum muab ua ntej rau nws cov xov channel yog txaus. 
Finally, the bottleneck area is planned. After the basic layout is processed, it is necessary to focus on the narrow bottleneck area.Considering the difference line, sensitive signal line, special signal topology, etc., how many lines can be calculated in the bottleneck area, and how many layers can be used to make all the necessary lines pass through this area.
Considering the above two points,basically not appear to go some parts of the line, some people say: pcb design is like a high-rise building building process, the layout of the wiring layer is one of the design drawings, planning well, the wiring naturally It can be done.
Ua ntej yuav pib cov PCB tsim, koj yuav tsum paub PCB loj: no yog nyob ntawm koj cov khoom loj, PCB khaubncaws sab nraud povtseg: qhov ntau khaubncaws sab nraud povtseg, qhov ntau complex tus raug ntawm cov PCB yuav, Qhov ntau khaubncaws sab nraud povtseg cov PCB muaj, qhov ntau kim nws yuav los tsim nws, KingSong PCB specilized nyob rau hauv muab PCB raug cov kev pab cuam. Peb yuav txhawb cov miv luam Circuit Court board raug kev pab los ntawm ib txheej mus rau 36 khaubncaws sab nraud povtseg kom tau raws li koj txawv PCB requirements.When koj tas layout tsim, koj yuav tau ib Gerber cov ntaub ntawv, cov ntaub ntawv no yuav siv tau los ntawm koj PCB chaw tsim tshuaj paus , Txawm tias muaj ntau ntau yam tuam txhab uas muag uas muab cov kev pab no, tab sis peb xav kom King-PCB.COM.