Hōʻoiaʻiʻo mākou i ka waiwai no ke kālā ma o nā kikoʻī a me ka kaohi pono. ʻOi aku ka paʻakikī o kā mākou pae hoʻohālikelike kūlana ma mua o nā mea kūʻai aku ʻē aʻe, a hōʻoia i ka hiki i kā mākou huahana ke hāʻawi i ka pāʻani piha i ka hana i manaʻo ʻia.

ʻOiai inā ʻaʻohe mea ʻokoʻa i ka ʻike mua ʻana, e waiwai nui nā huahana kiʻekiʻe

Ma o ka ʻilikai ʻike mākou i nā ʻokoʻa, nā mea koʻikoʻi i ka paʻa a me ka hana o PCB i ke ola holoʻokoʻa. ʻAʻole ʻike mau ka poʻe kūʻai i kēia mau ʻokoʻa, akā hiki iā lākou ke hilinaʻi i ka hoʻokō ʻana o nā PCB i hoʻolako ʻia i nā kūlana maikaʻi loa.

Inā i ka hana ʻana a me ke kaʻina hui a i ʻole i ka hoʻohana kūpono, pono i ka PCB hana pono, kahi mea nui loa. Ma waho aʻe o nā kumukūʻai e pili ana, hiki i nā hemahema i ke kaʻina hui ke lawe ʻia i loko o ka huahana hope loa e PCB, a hiki i nā hewa ke kū i ka hana hoʻohana maoli, nā hopena i nā koi. No laila, mai kēia manaʻo, ʻaʻole nui ka ʻōlelo ʻana he mea ʻole ke kumukūʻai o kahi PCB kiʻekiʻe.

I nā māhele mākeke āpau, ʻo ka mea e hana ana i nā huahana i nā wahi noi nui, ʻaʻole hiki ke noʻonoʻo ʻia nā hopena o ia mau hemahema.

These aspects should be kept in mind when comparing PCB prices. Although the initial cost of reliable, guaranteed and long-life products is high, they are worth it in the long run.

ʻOi aku ka hōʻike PCB i nā koina IPC papa 2

Papa kaapuni hilinaʻi kiʻekiʻe – 14 mau hiʻohiʻona nui i koho ʻia mai nā hiʻohiʻona 103

1. 25 micron puka paia mānoanoa keleawe

pōmaikaʻi

Hoʻonui i ka hilinaʻi, e like me ka hoʻonui ʻana i ke kūpaʻa o ka z-axis.

Pilikia o ka hana ʻole ʻana pēlā

ʻO nā pilikia pili uila ma ke kani ʻana o ka lua a i ʻole ka degassing, ka hui ʻana (ka hoʻokaʻawale ʻana o loko, ka haki o ka paia o ka puka), a i ʻole nā ​​hewa i kū ma lalo o nā kūlana hoʻoili i ka hoʻohana maoli ʻana. ʻO ka papa IPC 2 (ke kūlana maʻamau i hānai ʻia e ka hapa nui o nā hale hana) pono iā 20% ka liʻiliʻi o ke keleawe keleawe.

2. ʻAʻohe kuʻihao a i ʻole ka hoʻoponopono kaapuni hāmama

pōmaikaʻi

Perfect circuit can ensure reliability and safety, no maintenance and no risk

Pilikia o ka hana ʻole ʻana pēlā

Inā ʻaʻole hoʻomaikaʻi pono ʻia, e kaʻapuni ka papa kaapuni. ʻOiai inā he kūpono ka hoʻoponopono ʻana, aia kahi makaʻu o ka holomua ma lalo o nā kūlana hoʻoili (ka haʻalulu, a me nā mea ʻē aʻe), a hiki mai paha i ka hoʻohana maoli.

3. ʻOi aku i nā koina maʻemaʻe o nā kikoʻī IPC

pōmaikaʻi

Hiki ke hoʻomaikaʻi i ka hoʻomaʻemaʻe PCB hiki ke hoʻomaikaʻi i ka hilinaʻi.

Pilikia o ka hana ʻole ʻana pēlā

The residue and solder accumulation on the circuit board will bring risks to the anti welding layer, and the ion residue will lead to the risk of corrosion and pollution on the welding surface, which may lead to reliability problems (bad solder joint / electrical failure), and finally increase the probability of actual failure.

4. Kaohi ikaika i ke ola lawelawe o kēlā me kēia maʻamau o ka honua

pōmaikaʻi

Solderability, pono, a hoʻēmi i ka makaʻu o ka pulu komo

Pilikia o ka hana ʻole ʻana pēlā

Ma muli o nā loli metallographic i ka mālama ʻana i ka papa o nā papa kaapuni, hiki i nā pilikia solder, a hiki i ka hoʻohuʻu o ka wai ke alakaʻi i ka delamination, ka papa o loko a me ka hoʻokaʻawale ʻana o ka paia (kaapuni ākea) i ke kaʻina hui a me / a hoʻohana maoli paha.

5. E hoʻohana i nā substrates i ʻike nui ʻia ma waena o ka honua – mai hoʻohana i nā māka “kūloko” a ʻike ʻole ʻia

pōmaikaʻi

Hoʻonui i ka hilinaʻi a me ka hana i ʻike ʻia

Pilikia o ka hana ʻole ʻana pēlā

ʻO ka hana maikaʻi ʻole o ka mīkini ʻaʻole hiki i ka papa kaapuni ke hana e like me ka mea i manaʻo ʻia ma lalo o nā kūlana o ka ʻākoakoa. ʻO kahi laʻana, e alakaʻi i ka hana hoʻonui kiʻekiʻe i ka delamination, kaapuni ākea a me ka warpage. ʻO ka nāwaliwali o nā ʻano uila hiki ke alakaʻi i ka hana impedance maikaʻi ʻole.

6. ʻO ke ahonui o ka laminate kapa keleawe e hoʻokō i nā koi o ka ipc4101 papa B / L

pōmaikaʻi

Strictly controlling the thickness of dielectric layer can reduce the deviation of expected value of electrical performance.

Pilikia o ka hana ʻole ʻana pēlā

ʻAʻole hiki i ka hana uila ke hoʻokō i nā koi i kuhikuhi ʻia, a e nui nā ʻokoʻa i ka hoʻopuka / hana ʻana o ka hui like o nā ʻāpana.

7. E wehewehe i nā mea pale e pale i nā pono e hōʻoia i ka hoʻokō ʻana me nā koina papa ipc-sm-840

pōmaikaʻi

Hoʻomaopopo i ka ʻīnika “maikaʻi”, e ʻike i ka palekana o ka ʻīnika, a e hōʻoia i ka pale ʻana o ka solder i ka ink me nā kūlana UL.

Pilikia o ka hana ʻole ʻana pēlā

Hiki i nā inika maikaʻi ʻole ke kumu i ka hoʻopili ʻana, ka pale ʻana o ka flux a me nā pilikia paʻakikī. ʻO kēia mau pilikia āpau e alakaʻi i ka hoʻokaʻawale ʻana i ka solder e kūʻē mai ka papa kaapuni a i ka hopena e alakaʻi i ka palaʻai keleawe keleawe. Hiki i nā ʻano hoʻohaʻahaʻa maikaʻi ʻole ke kumu i nā kaapuni pōkole ma muli o ka pili ʻana o ka uila i kū ʻole ʻia.

8. E wehewehe i nā ahonui no nā kinona, nā lua a me nā hiʻohiʻona ʻenehana

pōmaikaʻi

Hiki i ka kaohi hoʻomanawanui koʻikoʻi ke hoʻomaikaʻi i ka maikaʻi dimensional o nā huahana – hoʻomaikaʻi i ke kūpono, ke ʻano a me ka hana

Pilikia o ka hana ʻole ʻana pēlā

Nā pilikia i ka wā o ka hoʻākoakoa, e like me ke kaulike / kūpono (ʻo ka pilikia o ke kui kele e loaʻa ke loaʻa wale ma hope o ka pau ʻana o ke anaina). Hoʻohui ʻia, e loaʻa nā pilikia i ke kau ʻana i ke kumu ma muli o ka hoʻonui ʻana o ka hoʻoliʻiliʻi dimensional.

9. The thickness of solder resist is specified, although it is not specified in IPC

pōmaikaʻi

Hoʻonui ka maikaʻi o ka hoʻoiho uila i ka makaʻu o ka peeling a i ʻole ka nalowale o ka hoʻopili a hoʻonui i ka hiki ke pale i ka hopena mechanical – ma nā wahi a ka hopena mechanical.

Pilikia o ka hana ʻole ʻana pēlā

Hiki i ka pale lahilahi ke pale i ka papa ke alakaʻi i ka adhesion, ke kūpaʻa flux a me nā pilikia paʻakikī. ʻO kēia mau pilikia āpau e alakaʻi i ka hoʻokaʻawale ʻana i ka solder e kūʻē mai ka papa kaapuni a i ka hopena e alakaʻi i ka palaʻai keleawe keleawe. ʻO nā hiʻohiʻona pilikino maikaʻi ʻole ma muli o ka pale kuʻina pale lahilahi hiki ke hana i ke kaapuni pōkole ma muli o ka conduction / arc kūpono.

10. Hoʻākāka ʻia ka helehelena a me nā koi hoʻoponopono, ʻoiai ʻaʻole i wehewehe ʻia e IPC

pōmaikaʻi

I ke kaʻina hana, mālama mālama a mālama e hana i ka palekana.

Pilikia o ka hana ʻole ʻana pēlā

Nā ʻano scratches, hōʻino iki, hoʻoponopono a hoʻoponopono – hana nā papa kaapuni akā ʻaʻole maikaʻi. Ma waho aʻe o nā pilikia i hiki ke ʻike ʻia ma ka ʻili, he aha nā mea ʻike maka ʻole ʻia, ka hopena o ka ʻaha a me nā pilikia i ka hoʻohana maoli?

11. Nā koina no ka hohonu o ka plug plug

pōmaikaʻi

ʻO nā puka kuʻina kiʻekiʻe e hōʻemi i ka makaʻu ʻole o ka holomua i ka wā o ka ʻākoakoa.

Pilikia o ka hana ʻole ʻana pēlā

ʻO nā koena kemika i ke kaʻina hana hoʻoheʻe gula e noho paha i loko o nā lua me ka lawa ʻole o nā puka kuʻina, e hopena ai i nā pilikia e like me ka weldability. Hoʻohui ʻia, hūnā ʻia nā lei kēpau i ka lua. I ka hui ʻana a i ʻole ka hoʻohana maoli ʻana, e pīpī ʻia nā lei kēpau a hana i ke kaapuni pōkole.

12. Hōʻike ʻo Peters sd2955 i ka mana a me ke kumu hoʻohālike o ka limu polu peelable

pōmaikaʻi

Hiki i ke koho ʻana i ke kāpili polū peelable ke pale aku i ka hoʻohana ʻana i nā “kūloko” a i ʻole nā ​​makana liʻiliʻi.

Pilikia o ka hana ʻole ʻana pēlā

Hiki i ka ʻōpala haʻahaʻa a haʻahaʻa paha ke huʻa, hoʻoheheʻe, wāwahi a hoʻonoho ʻia paha e like me ka pōkā i ka wā o ka hoʻākoakoa, i hiki ʻole ai i ke kāwele strippable ke hemo / hana ʻole.

13. Hana i nā ʻae kūikawā a me nā kaʻina hoʻonohonoho hoʻonohonoho no kēlā me kēia ʻoka kūʻai

pōmaikaʻi

ʻO ka hoʻokō ʻana i kēia kaʻina hana e hōʻoia i ka hōʻoia o nā kikoʻī āpau.

Pilikia o ka hana ʻole ʻana pēlā

Inā ʻaʻole e hoʻokūpaʻa pono ʻia ka kikoʻī huahana, ʻaʻole e loaʻa ka hoʻoliʻiliʻi hopena a hiki i ka ʻaha a i ʻole huahana hope loa, a laila ua lohi.

14. ʻAʻole ʻae ʻia nā pā uhi ʻia me nā ʻāpana i kikokiko ʻia

pōmaikaʻi

ʻAʻole hoʻohana i ka ʻākoakoa hapa hiki ke kōkua i ka poʻe kūʻai aku e hoʻomaikaʻi i ka pono.

Pilikia o ka hana ʻole ʻana pēlā

Hōʻike Test

Koi ʻia nā kaʻina hana kūikawā no nā papa pale pale hemahema. Inā ʻaʻole kaha kikoʻī ʻia a hoʻokaʻawale ʻia paha ka papa ʻāpana i haki ʻia (x-out) mai ka papa sheathed, hiki nō ke hōʻākoakoa i kēia papa ʻino i ʻike ʻia, no laila e hoʻonele ana i nā ʻāpana a me ka manawa.