Kodi Zofunikira pa PCB Board Press-Fit Structure Design ndi ziti?

Multilayer PCB imapangidwa makamaka ndi zojambula zamkuwa, pepala lopukutidwa, bolodi loyambira.Pali mitundu iwiri yamapangidwe a makina osindikizira, omwe ndi zojambula zamkuwa ndi core board press-fit structure ndi core board ndi core board press-fit structure.Chojambula chamkuwa chokonda komanso kapangidwe kamene kamapangidwira, mbale zapadera (monga Rogess44350, etc.) bolodi la multilayer ndi bolodi losakanizika la atolankhani lingagwiritsidwe ntchito poyambira.Zindikirani kuti mawonekedwe oponderezedwa (PCB Construction) ndi chithunzi chobowola chamagulu otsatiridwa (Stack-up- layers) ndi malingaliro awiri osiyana.Yoyamba imatanthawuza PCB mbamuikha pamodzi pamene dongosolo zakhala zikuzunza m'miyoyo, amatchedwanso zaunjika dongosolo, yotsirizira amatanthauza PCB kamangidwe stacking dongosolo, amatchedwanso kuti stacking dongosolo.

1. Kukanikiza pamodzi kapangidwe kamangidwe zofunika

Pofuna kuchepetsa PCB warpage chodabwitsa, PCB mbamuikha pamodzi dongosolo ayenera symmetry zofunika, ndiye makulidwe a zojambulazo mkuwa, atolankhani wosanjikiza gulu ndi makulidwe, mtundu wa kugawa likutipatsa (mzere wosanjikiza, ndege wosanjikiza), mbamuikha pamodzi symmetrical wachibale. mpaka pakati ofukula PCB.

2. Conductor mkuwa makulidwe

(1) makulidwe a kondakitala amkuwa omwe amalembedwa pazithunzi za makulidwe a mkuwa womalizidwa, ndiko kuti, makulidwe akunja amkuwa a makulidwe a zojambula zamkuwa zapansi kuphatikiza makulidwe a plating wosanjikiza, makulidwe amkati amkuwa a makulidwe amkati. pansi mkuwa zojambulazo.Makulidwe akunja amkuwa pachojambula amalembedwa kuti "zojambula zamkuwa zamkuwa + zokutira, ndipo makulidwe amkati amkuwa amalembedwa kuti "makina a zojambula zamkuwa".

(2) 2OZ ndi pamwamba wandiweyani pansi mkuwa kuganizira ntchito.

Ayenera kugwiritsidwa ntchito symmetrically lonse laminated kapangidwe.

Momwe ndingathere kupewa kuika mu L2 ndi Ln-2 wosanjikiza, ndiye, Top, Pansi pamwamba pa wosanjikiza wachiwiri akunja, kuti kupewa PCB pamwamba kusanja, makwinya.

3. Zofunikira zapakatikati

Kukanikiza ndondomeko ndi ndondomeko kiyi wa kupanga PCB, nthawi zambiri mabowo mbamuikha ndi chimbale mayikidwe olondola adzakhala oipa kwambiri, kwambiri PCB mapindikidwe, makamaka pamene asymmetric mbamuikha pamodzi.Lamination zofunika kwa lamination, monga makulidwe mkuwa ndi makulidwe TV ayenera zikugwirizana.