Ukuba ubhedu olufileyo kufuneka lususwe ngaphakathi PCB uyilo?

Abanye abantu bathi kufuneka isuswe ngezi zizathu zilandelayo: 1. Kuya kubakho iingxaki ze-EMI. 2, ukuphucula amandla okuphazamisa. 3. Ubhedu olufileyo alunamsebenzi.

Abanye abantu bathi kufuneka igcinwe, izizathu zezi: 1. Ngamanye amaxesha indawo enkulu engenanto ayikhangeleki intle. 2, ukwandisa iipropati ngomatshini ibhodi, ukuthintela isenzeko ukugoba engalinganiyo.

Okokuqala, asifuni kufa ubhedu (isiqithi), kuba isiqithi apha senza isiphumo se-eriyali, ukuba amandla emitha ajikeleze umgca mkhulu, aya kuphucula ubushushu be radiation; Kwaye siyakwenza isiphumo sokwamkelwa kwe-eriyali, siya kwazisa ukuphazamiseka kwe-electromagnetic kwi-wiring ejikelezileyo.

Okwesibini, sinokucima ezinye iziqithi ezincinci. Ukuba sifuna ukugcina isambatho sobhedu, isiqithi kufuneka siqhagamshelwe kakuhle kwi-GND ngomngxunya womhlaba ukwenza ikhaka.

Okwesithathu, amaza aphakamileyo, iintambo ze-capacitance ehanjisiweyo kwibhodi yesekethe eprintiweyo iya kusebenza, xa ubude bungaphezulu kwe-1/20 yengxolo yesantya ehambelana nobude be-wavelength, inokuvelisa isiphumo se-eriyali, ingxolo iya kuphuma nge-wiring, ukuba kukho Ubhedu olubi olugqityiweyo kwi-PCB, ilokhwe yobhedu yaba sisixhobo sengxolo yokuhambisa, ke ngoko, kwisekethe ephezulu yokuhamba, ungacingi, Umhlaba kwindawo ethile onxulunyaniswe nomhlaba, lo “ngumhlaba”, kufuneka ubengaphantsi kwe-λ / 20 isithuba, kumngxunya wentambo, kunye nomgangatho webhodi ye-multilayer “umhlaba olungileyo”. Ukuba ityhubhu yobhedu iphathwa ngokufanelekileyo, ukutyabeka ubhedu akonyusi okwangoku kuphela, kodwa kukwadlala indima ezimbini ekukhuseleni ukuphazamiseka.

Okwesine, ngokugrumba umngxunya womhlaba, gcina isigqubuthelo sobhedu sesi siqithi, hayi kuphela esinokudlala indima ekukhuseleni ukuphazamiseka, kodwa sinokuthintela i-PCB deformation.