Me ka hoʻomohala ʻana o ka ʻoihana ʻike uila, ʻoi aku ka kiʻekiʻe o nā huahana uila terminal no ka hoʻomaʻemaʻe ʻana PCB ʻoihana. He hana koʻikoʻi ka wili ʻana i ka hana ʻana o PCB, i kūkulu ʻia i ka palena liʻiliʻi o ka lua o 0.08mm, ka nui o ka hole spacing o 0.1mm a i ʻole ka pae kiʻekiʻe. Ma waho aʻe o ke alakaʻi ʻana i nā lua, nā ʻāpana ʻāpana, nā ʻāpana, nā puka kūikawā, ke ʻano o ka pā, a me nā mea ʻē aʻe, pono e nānā ʻia nā mea āpau. Pehea e ʻike ai i ka maikaʻi o ka wili ʻana o ka papa PCB me ka maikaʻi a me ka pololei i lilo i loulou koʻikoʻi e hōʻoia i ka maikaʻi o nā huahana. ʻO ka mīkini ʻike hole PCB he mea hoʻohana i ka nānā ʻana i ka maikaʻi o ka wili. ʻO ke kumu o kēia pepa ʻo ia ka nānā ʻana i ka hana o ka mīkini hoʻāʻo lua i ke kaʻina hana wili a hāʻawi i ka ʻike kuhikuhi no nā mea hana PCB.

I ka PCB wili kaʻina hana, pono e hoʻomalu i kēia mau pilikia maikaʻi: porosity, leakage, displacement, hewa wili, non-penetration, puka poho, ʻōpala, mua, plug puka. I kēia manawa, ʻo nā ʻano mana o nā mea hana like ʻole e hoʻomaʻamaʻa i ke kaʻina hana drilling ma mua o ka wili ʻana a hoʻoikaika i ke ʻano o ka nānā ʻana ma hope o ka wili ʻana. In actual production, because the pre-drilling method can only reduce the probability of error, can not completely eliminate, we must rely on post-drilling inspection to ensure product quality.

In the post-drilling inspection, many domestic manufacturers are still using the plug gauge combined with artificial visual film (film) set inspection method: through the plug gauge focus on checking the hole, hole small, through the film focus on porous, leaky hole, shift, not through, not through, other hole damage, front, hole plug through artificial visual to complete. I ka hoʻohana ʻana i ka nānā ʻana i ke kiʻiʻoniʻoni, e hoʻoheheʻe kēlā me kēia huahana i kahi laʻana kiʻiʻoniʻoni ʻulaʻula, ka nānā ʻana ma o ka pine a me ka pā huahana i hoʻopaʻa ʻia, ka nānā lima lima ma lalo o ka pahu kukui. In theory, this method can detect all kinds of defects, but in practice, the effect is greatly discounted.

ʻO nā pilikia nui penei:

ʻO ka mea mua, ʻaʻole hiki ke hōʻoia ʻia nā koi nānā o ka puka liʻiliʻi: hōʻike ka hana hana no ka PCB me ka liʻiliʻi aperture ≥0.5mm, hiki i ka manual ke hoʻokō i nā hopena nānā kiʻekiʻe ma lalo o ka manaʻo o ka hōʻoia ʻana i kahi pono hana. This is determined by the minimum discernable visual Angle of the human eye, the working distance, and the attention span. Me ka emi ʻana o ka nui aperture, no ka pā huahana ma lalo o 0.5mm, e emi koke ka mākaʻikaʻi o nā maka kanaka, no ka pā huahana ≤0.25mm, paʻakikī ke hōʻoia i ka maikaʻi o ka sampling.

ʻO ka lua, ua palena ka pono o ka nānā lima: pili pono ka pono o ka nānā lima i ka helu o nā puka a me ka puka liʻiliʻi. Hōʻike ka ʻike hana maoli e hoʻemi nui ʻia ka pono inā ʻoi aku ka nui o ka lua ma mua o 10000 a ʻo ka lua liʻiliʻi ma lalo o 0.5mm. He kūpono wale ka nānā lima no ka laʻana. No ka pā kiʻekiʻe kiʻekiʻe, ʻaʻole hiki ke hōʻoia i ka maikaʻi o ka wili ʻana ma ka manual.

ʻO ke kolu, ʻaʻole hiki ke hōʻoia i ka paʻa o ka maikaʻi: e hoʻopilikia ʻia nā kānaka e ka ʻike, ke ʻano, ka luhi, ke kuleana a me nā kumu ʻē aʻe, paʻakikī ke hōʻoia i ka paʻa o ka maikaʻi. Some manufacturers can not use multiple artificial, repeated inspection method, but still can not ensure the stability of quality.

I mea e hoʻoponopono ai i nā pilikia i luna, nui nā hale hana PCB LARGE i hoʻohana i ka hole inspection AOI lako e pani i ka hana lima ma kahi ākea nui. ʻOi loa no nā ʻoihana kālā Kepani a me Taiwan, ua hōʻoia i nā makahiki he nui o ka hoʻomaʻamaʻa ʻana i ka maikaʻi o kēia ʻano hana hou, ʻo ia ka mea kūpono i ka nānā a me ka kuhikuhi ʻana o nā mea hana PCB home.

ʻO nā mea hoʻokele hole AOI no nā lako nānā ʻokoʻa. E like me ke ʻano kiʻi o nā hemahema like ʻole o ka wili ʻana, hiki ke hoʻokaʻawale ʻia i: porous, liʻiliʻi lua, puka nui, puka liʻiliʻi, koena, hole deviation a me ka puka puka. Ua māhele ʻia i ʻelua ʻano: ʻo ka mīkini nānā Hole, ʻo ke ana ʻo Hole a me ka mīkini nānā (hole-AOI). I ka hoʻomaʻamaʻa ʻana, aia kekahi mīkini nānā X-ray, kahi i hoʻohana nui ʻia no ka nānā ʻana i nā lua makapō i kanu ʻia a me nā papa multi-layer, ʻaʻole i kūlike me ka pahuhopu o ka nānā ʻana i ke kiʻi kiʻiʻoniʻoni manual a ʻaʻole ia i ke ʻano o ka nānā ʻana. keia pepa.

E like me ka PCB Manufacturers ‘mea hoʻohālikelike ka hoao ana, ua paipai ‘ia e hoʻohana i nā pūʻulu he nui o ka lua hoʻokolo mīkini no ka piha nānā ‘ana o ka papa mua a me ka papa lalo, e kālele ana ma luna o ka nana ana o na lua, kakaikahi puka, nui puka, liilii a me ka lepo; Hoʻohana ʻia ka mīkini ana ʻana a me ka mīkini nānā ʻana no ka nānā ʻana, e kālele ana i ka wehe ʻana o ka puka. ʻO nā hiʻohiʻona o nā mea hana ʻelua penei:

Hole nānā mīkini: nā mea maikaʻi he haʻahaʻa kumu kūʻai, wikiwiki nānā pono, e nānā i ka 600mm × 600mm PCB awelika o 6 ~ 7 kekona, hiki ke hoʻomaopopo i ka porous, liʻiliʻi lua, puka, puka liʻiliʻi, ke koena nānā. ʻO ka hemahema, ʻaʻole kiʻekiʻe ka hiki ke nānā i ke kūlana o ka lua, a hiki ke ʻike ʻia nā hemahema koʻikoʻi. E like me ka ʻike hana maoli o ka mea hana, ʻo ka maʻamau 15 RIGS ua lako me 1 mīkini hole nānā.

ʻO ke ana ʻana i ke kūlana hole a me ka mīkini nānā ʻana: ʻo ka mea maikaʻi e hiki ke nānā ʻia nā mea āpau. ʻO ka hemahema, ʻo ke kumukūʻai kiʻekiʻe (e pili ana i 3 ~ 4 mau manawa o ka mīkini nānā lua), haʻahaʻa ka maikaʻi o ka nānā ʻana, lawe i kekahi mau minuke a i ʻole ka lōʻihi e nānā i ka ʻāpana 1. It is generally recommended to configure one machine for product sampling inspection to supplement the deficiency of hole checking machine for hole position inspection.

Inspection principle of hole inspection AOI equipment: PCB drilling image is collected by optical system, and compared with the design document (drill tape file or Gerber file). If the two are consistent, it indicates that the drilling is correct; otherwise, it indicates that there is a problem in the drilling, and then analyze and classify the defect type according to the image morphology. Hoʻohālikelike ʻia nā mea hana hole inspection me nā palapala hoʻolālā o ka drilling, a ua hoʻohālikelike ʻia ka nānā ʻana i ka manual me ke kiʻiʻoniʻoni. Ma ke ʻano o ka loiloi loiloi, hiki ke pale ʻia nā pilikia i hoʻokumu ʻia e nā hewa drilling film, a ʻoi aku ka kiʻekiʻe o ka hilinaʻi.

PCB puka ho’āʻo mīkini enehana kālailai

Hōʻike ʻia ka hana o ka mīkini hole checking ma ka PCB drilling process i nā ʻano aʻe:

ʻO ka mua, ka nānā pono ʻana i ka maikaʻi o ka wili ʻana:

ʻO ka nānā maʻamau: hiki ke nānā ʻia ka porous, liʻiliʻi liʻiliʻi, puka nui, puka liʻiliʻi a me nā ʻōpala i ka manawa like me ka wikiwiki o ka puka liʻiliʻi 0.15mm a me 8m/min, a ua hōʻailona ʻia ka wahi hemahema a nānā ʻia ke kiʻi kīnā e hāʻawi i ke kumu hoʻoholo lima. .

Ka nānā ʻana i nā ʻōpala: i ka nānā ʻana i ka wili mua ʻana, ʻaʻole ʻo ka ʻōpala ka mea nui o ka nānā ʻana; Akā, ma mua o ka electroplating, pono ka ʻōpala i ka nānā pono. I mea e hōʻemi ai i ka hopena o ka ʻōpala i ka maikaʻi o ka ua keleawe, hoʻopau maʻamau nā mea hana PCB i ka ʻōpala ma ka wili ʻana a me ka hoʻomaʻemaʻe ʻana ma mua o ka electroplating, akā i ka hoʻomaʻamaʻa ʻana, ʻaʻole ia he 100% maʻemaʻe, ʻoi aku ka maikaʻi o ka hopena hoʻomaʻemaʻe kiʻekiʻe. Theoretically, aia nā ʻōpala i kēlā me kēia PCB, no laila ʻaʻole hiki ke nānā pono i nā puka āpau ma nā huahana a pau, e hilinaʻi ana i ka nānā ʻana i ka manual, akā hiki i ka mīkini nānā puka.

Quality improvement: stability is the biggest advantage of equipment, stable product quality can enhance the brand influence of PCB factory, directly improve the ability of manufacturers to receive orders.

ʻO ka lua, kōkua i nā keʻena hana a me ka maikaʻi i ka ʻikepili helu helu:

Ke kālailai meahana: hiki iā ia ke kālailai i ka awelika deviation o ka lua wili anawaena o na mea paahana wili like ole i ka PCB, e nana i ka hiki ke hoohana i ka mea hana wili i ka manawa maoli, e imi i ka pilikia mea hana hewa i ka manawa, a e pale i na papa palapa pala.

Ka nānā ‘ana: hiki iā ia ke hō’ili’ili i kēlā me kēia lā, i kēlā me kēia mahina, i kēlā me kēia mahina, i kēlā me kēia makahiki a me ka hiki ke ho’onui i ka hana awelika, e hā’awi i ka ‘ikepili no’ono’o no nā ‘ano mana like ‘ole, a me ka ho’omaika’i ‘ana i ka hana o ka hale hana.

ʻIke mīkini: hiki ke helu i ka hopena, nā ʻano a me nā pilikia maikaʻi o kēlā me kēia rig, hoʻomaikaʻi i ka hiki ke hoʻokele i nā kikoʻī o ka mīkini.

ʻO ke kolu, ka mālama ʻana i ke kumu kūʻai, ka lakio hoʻokomo-puka kiʻekiʻe:

Nā limahana nānā: ma ke kumu o ka hōʻoia ʻana i ka maikaʻi a me ka hoʻomaikaʻi ʻana i ka pono, hiki ke hoʻopakele ʻia nā limahana nānā 2 ~ 3 ma ka awelika e ka mīkini nānā lua.

Mea maka: hiki iā ia ke mālama i ke kumu kūʻai o ke kiʻiʻoniʻoni, ʻoi aku ka manaʻo no nā ʻoihana liʻiliʻi a me nā mea liʻiliʻi.

Customer complaint: it can save the cost of return order and fine caused by drilling defects. Although it is not as direct as the personnel and materials saved, the average annual cost saved is even higher than the purchasing cost of hole inspection machine.

Me nā koi ʻoi aku ka maikaʻi o nā mea hana PCB no ke kaʻina hana wili, ma lalo o ke kaomi ʻana o ka hoʻonui ʻana i ke kumukūʻai hana a me ka hiki ʻole ke nānā pono ʻana i ka manual, ʻoi aku ka nui o ka mīkini nānā puka.

Ua ʻoi aku ka hoʻohana ʻana o ka mīkini nānā lua ma mua o ʻumi mau makahiki, ke hoʻomaikaʻi mau nei ka hana a me ka hana o nā mea hana, a ʻoi aku ka pili o ka hana ʻana me ka hana. ʻOi aku me ka hoʻomohala wikiwiki ʻana o ka papa kiʻekiʻe, ua hoʻololi mālie ʻia ka mīkini nānā puka mai nā mea kōkua mua i mea kākoʻo kī. I ka hoʻololi ʻana o nā mea kanu PCB kahiko a me ka hoʻomākaukau ʻana i nā mea kanu hou, e ʻoi aku ka kiʻekiʻe o ka kaulana o nā mīkini hoʻāʻo lua.