Shadowing Practice: PCB 101 Academy - Learn how printed circuit boards are assembled - Learn English Speaking with Video

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I am here at Roy Electronics in Northern Italy

and I'm going to share with you now the PCB assembly

process as it starts from the bareboard PCBs to the end customers.

ProElectronics have implemented a very advanced

Industry 4 .0 PCB assembly shop floor.

As you can see, there are hardly any operators in this production floor because they have chosen to implement a very high level of automation.

This is the shop floor of the future.

Let's go have a look.

The burr board goes into the laser marking machine.

The machine marks a unique serial number which comes from the ERP

and reports to the output file that the Valor IoT can then collect the data.

The serial number will enable us to track this specific board and know exactly what happened to it.

At ROI, the serial numbers are generated by the ERP and are unique to each PCB.

The screen printer applies the paste through the stencil.

Each job has a different stencil which is planned with Valor process preparation.

It must be precise per product and per revision.

At this station, we can expect a relatively high rate of defects.

It is very sensitive to environment condition, temperature, humidity, time.

This is the reason for many tests and inspections after this stage.

With Valor material management, we can conduct stencil verification by scanning the stencil barcode and reporting the exact stencil and paste we have used.

The solder paste inspection machine, referenced as SPI, tests the quality of the printer to verify

that everything was printed according to the plan and there is paste only where it should be.

The SPI will run the test program and report the findings in a file, including pass -fail as well as measurements.

This data is later on collected by Valor IoT.

Roy have three types of pick -and -place machines.

A fast pick -and -place machine, a machine with a camera for small and subtle components when accuracy is highly important,

and a very strong machine with high pressure for boards that require force in implementing its components.

Having different pick -and -place machines is typical to many manufacturers.

It allows for high accuracy and flexibility.

Valor process preparation can help in generating the assembly programs.

Valor IoT manufacturing connects to the pick and place machine and can collect data regarding machine utilization.

Valor material management helps manage the material on the machine and replacement of material when it's consumed.

At the visual inspection station, operators can validate that the correct components were placed on the board before continuing in the manufacturing process.

Valor process preparation can create a documentation which will define for the operator what should be inspected at this stage.

Here the soldering is done.

The plan for the oven is referred to as an oven profile.

The reflow oven is divided into several chambers.

The speed through each chamber can be different, and each chamber can have a different temperature.

Valo IoT Manufacturing connects to the reflow oven and receives information regarding the actual temperature and speed of the oven.

At this station, we wish to ensure

that each component was placed correctly in the right angle and that the soldering is good.

Valor process preparation can help us prepare a test program so

that the exact location where the pins contact the pads will be examined.

At this point, the SMT process is complete.

Following the SMT process, we have additional placement technologies such as through -hole and manual assembly.

At the through -hole station at Roy, we can see that the through -hole components are placed manually on the PCB,

but they are then soldered in a selective soldering oven.

There are two methods which are used to perform electrical tests on the PCB.

Bed of nails for high volume,

which allows for shorter time of testing but requires expensive development of fixtures or flying probe for high mix small volume.

It takes longer to program the flying probe and run the test but is much easier to handle new products.

Valor process preparation can help plan the fixture of the bed

of nail as well as generate a program for the flying probe machine.

In addition, Valor IoT will collect data from the different testers including the different electrical measurement as well as the pass fail.

All Valor manufacturing solutions have been integrated into the CamStar electronics suite.

Data is sent to the MES, which now runs the entire process.

For large BGA components, we need to check that the pins reach the right layer.

These pins are usually behind the component and therefore cannot be tested with AOI machines.

In this case, we use an x -ray to take an x -ray image of the PCB

and make sure that the connectivity and the soldering is adequate.

Now we can actually test the functionality of the completed product.

The preference is always to find issues through the different processes

and avoid finding defects at the last stage of the functional test.

Here, mechanical parts are assembled manually or by a robot.

At this point, the product assembly is complete.

That's it.

The product is ready to be delivered.

We can package it and send it to the end customer.

The PCB assembly process has been completed.

Now that we've learned how PCBs are made, come and join us in leading this industry.

Siemens.

Ingenuity for life.

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Woordenschat en spreektips bij deze les

Deze spreekles is gebaseerd op de video “PCB 101 Academy - Learn how printed circuit boards are assembled”. Deze woorden komen het vaakst terug: machine, process, pcb, valor, test. Deze video bevat 32 zinnen en 904 woorden om na te spreken. Het gesproken deel duurt 6:13. De spreker praat in een gelijkmatig tempo van ongeveer 145 woorden per minuut, prettig om te shadowen. Slechts 78% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden, dus de woordenschat is pittig.

Belangrijke woorden in deze video

15 woorden uit de video die het leren waard zijn, met uitspraak en betekenis:

Woord	Uitspraak	Betekenis
component zelfstandig naamwoord	/kəmˈpoʊ.nənt/	onderdeel, component
oven zelfstandig naamwoord	/ˈʌ.vn̩/	oven
preparation zelfstandig naamwoord	/ˌpɹɛpəˈɹeɪʃ(ə)n/	voorbereiding
collect werkwoord	/ˈkɑlɪkt/	verzamelen, opstapelen
pasta zelfstandig naamwoord	/ˈpɑ.stə/	deegwaren, pasta
chamber zelfstandig naamwoord	/ˈt͡ʃeɪ̯mbɚ/	slaapkamer
operator zelfstandig naamwoord	/ˈɑpəˌɹeɪtɚ/	bediener
pin zelfstandig naamwoord	/pɪn/	pin, speld
implement werkwoord	/ˈɪmpləmənt/	implementeren, (in de praktijk) toepassen
electronics zelfstandig naamwoord	/ɪˌlɛkˈtɹɑ.nɪks/	elektronica
inspection zelfstandig naamwoord	/ɪnˈspɛkʃən/	onderzoek, inspectie
connect werkwoord	/kəˈnɛkt/	verbinden
accuracy zelfstandig naamwoord	/ˈæk.jɚ.ə.si/	nauwkeurigheid, precisie
nail zelfstandig naamwoord	/neɪl/	nagel
measurement zelfstandig naamwoord	/ˈmɛʒ.ə.mənt/	meting

Grammatica in deze video

De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:

Structuur	In de video
Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doet	are generated · is planned · was printed
Present perfect have/has + voltooid deelwoord — iets uit het verleden dat nu nog telt	have implemented · have chosen · have been integrated
Betrekkelijke bijzinnen who / which + zin — extra informatie over een persoon of ding	stencil which is · documentation which will · methods which are

Uitspraak om op te letten

De spreker gebruikt 3 samentrekkingen en verkorte vormen, zoals I'm, they're, we've. Spreek ze kort uit, zoals je ze hoort.

De klanken “sh” en “zh”: preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, inspection /ɪnˈspɛkʃən/, measurement /ˈmɛʒ.ə.mənt/, documentation /ˌdɑkjəmɛnˈteɪʃən/, revision /ɹəˈvɪʒ.ən/
Lange woorden — let op de klemtoon: preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, operator /ˈɑpəˌɹeɪtɚ/, electronics /ɪˌlɛkˈtɹɑ.nɪks/, electrical /ɪˈlɛktɹɪkəl/, accuracy /ˈæk.jɚ.ə.si/

Klanken die Nederlandstaligen lastig vinden:

Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: probe /pɹoʊb/, package /ˈpæk.ɪd͡ʒ/, sensitive /ˈsɛn.sɪt.ɪv/, divide /dɪˈvaɪd/, pad /pæd/
/æ/ — opener dan de Nederlandse “e”: accuracy /ˈæk.jɚ.ə.si/, manually /ˈmænj(u)əliː/, package /ˈpæk.ɪd͡ʒ/, angle /ˈæŋ.ɡəl/, mechanical /məˈkænəkəl/
/g/ — een harde plofklank, geen Nederlandse “g”: angle /ˈæŋ.ɡəl/, examine /ɪɡˈzæmɪn/, integrate /ˈɪn.tɪ.ɡɹeɪt/

Zo oefen je met deze video

Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
Spreek zin voor zin na op normale snelheid en herhaal elke zin tot je ritme gelijk is aan dat van de spreker.
Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als component, oven, preparation.

Wat is de Shadowing-techniek?

Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.

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Shadowing Practice: PCB 101 Academy - Learn how printed circuit boards are assembled - Learn English Speaking with Video

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