Papa PCB hana ho’ākāka:

Piha i nā pilina uila i hoʻopili ʻia i ka papa kaapuni a i ʻole PCB. Loaʻa iā ia hoʻokahi a me nā kaʻapuni hana he nui. Hoʻopiha kēia mau papa i ka pono o ka mīkini uila a me nā kaʻa kaʻa. ʻO ka papa PCB he substrate mea insulate kahi i kau ʻia ai kahi ʻāpana lahilahi o nā mea conductive. Hoʻomoe ʻia nā ʻenehana uila kikoʻī ma ka mea hoʻoheheʻe (substrate) o ka PCB a pili i ke kaapuni interconnect ma o ka mehana a me ka lina. Hiki iā lākou ke hoʻohana ʻia e like me nā switchboard kūlike.

Hoʻolahalaha nā mea hana i nā hewa lapuwale i ka hoʻolālā i hoʻonohonoho ʻia. Eia nō naʻe, hoʻonui pinepine ʻole ʻia ke ʻano ke ʻoi aku ka nui o nā ʻoihana i kā lākou PCB noi i nā noi haole.

Type:

Kūkulu ka PCB kūkulu i ʻekolu mau ʻano nui:

ʻAoʻao hoʻokahi: Kēia PCBS i kahi lahilahi o ka wela-ke alakaʻi ʻana i nā mea a me ka papa o ke keleawe lamineka hoʻohiamoe dialectics. Pili nā uila uila i kekahi ʻaoʻao o ka substrate.

ʻAoʻao pālua: I kēia PCB, e kau ʻia nā mea hou aku ma luna o ka mea i loaʻa ma mua o ka PCB ʻaoʻao hoʻokahi.

Multilayer: hoʻohui nā mea ma ka substrate e ka ʻeli ʻana i lalo i nā puka electroplated i ka papa kaapuni kūpono. ʻO ka helu o PCBS multilayer i hoʻonohonoho ʻia i ʻoi aku i ka PCBS ʻaoʻao ʻelua a ʻaoʻao ʻelua. Hana maʻalahi ia i ke kumu o ke kaapuni.

Aia kekahi mau ʻano ʻelua: nā huila i hoʻohui ʻia (i ʻike ʻia he ics a i ʻole microchips) a me nā kaʻa kaʻa kaʻa. Kūlike ke ʻano o ko IC ʻano me nā ʻano ʻē aʻe, akā me ka nui o nā kaapuni i kālai ʻia i ka papa o nā ʻāpana silikona liʻiliʻi. The only difference in hybrid circuits is that the components are grown on the surface rather than placed with adhesive.

eiiiiiaiou:

Ma ka papa PCB, kau ʻia ka uila uila ma luna o ka ʻili. Aia kekahi mau ʻano ʻenehana, e like me:

Ma o ka ʻenehana lua:

No nā makahiki he nui, ua hoʻohana ʻia ʻenehana ma o-hole e hana ʻaneʻane i nā papa kaapuni i paʻi ʻia (PCBS). The through-hole portion is mounted by two axial leads. For mechanical strength, the leads are bent at a 90 degree Angle and sold in the opposite direction. Ma o ka paʻa ʻana o ka puka e hilinaʻi pono ʻia ai hāʻawi ʻia i ka pilina mechanical ikaika; Eia naʻe, ʻoi aku ka maikaʻi o ka ʻeli ʻana i nā papa e hana.

ʻEnehana kuapo pae:

Ua ʻoi aku ka liʻiliʻi o SMT ma mua o kona hoa ma waena o ka puka. ʻO kēia no ka mea he alakaʻi liʻiliʻi paha ka mea SMT a ʻaʻohe alakaʻi paha. It’s a quarter to a third through hole. ʻAʻole koi ka PCBS me nā mea e kau i ka ʻili (SMD) i ka nui o ke kalai ʻana, a paʻa paʻa loa kēia mau mea, e ʻae ana i nā kiʻekiʻena kaapuni kiʻekiʻe ma nā papa liʻiliʻi.

Ma o ke kūlana maikaʻi o ka automation, hoʻemi ʻia nā kumukūʻai hana a hoʻomaikaʻi maikaʻi ʻia ka hana ʻana.

Design:

Hoʻohana nā mea hana papa PCB i ke kūkulu ʻana i ke kōkua kōkua kamepiula (CAD) e hoʻolālā i nā laʻana kaapuni ma ka papa. Hāʻawi ʻia nā hana kikoʻī i nā huahana kikoʻī. Pono ka papa alakaʻi e hoʻokō i ka hana a ia e koho ai. He hāiki ka hakahaka ma waena o ke kaapuni a me ke ala conductive. ʻO 0.04 iniha (1.0 mm) a ʻoi iki paha.

E hōʻike ʻia i ke kēpau mea a i ʻole ke kumu hoʻopā kokoke i ka lua, a e hoʻohuli ʻia kēia moʻolelo i mau ʻōkuhi no ka ʻenekini drilling CNC a i ʻole ka ʻenehana hana i hoʻohana ʻia i nā piʻina paʻa pono.

E paʻi i kahi kiʻi kīnā ʻole a mask paha i kahi nui kikoʻī ma kahi pepa plastic maʻemaʻe, e laʻa me ka manawa koke ma hope o ka hōʻike ʻana i nā hāpana kaapuni. Inā maikaʻi ʻole ke kiʻi, e hoʻokūpaʻa ʻia ka ʻāpana i ʻāpana ʻāpana o ka pōʻai i ʻeleʻele a e hoʻāʻo ʻia ke ʻano o ka pōʻai.