تدريب Shadowing: PCB 101 Academy - Learn how printed circuit boards are assembled - تعلم التحدث بالإنجليزية عبر الفيديو

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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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المفردات وملاحظات التحدث لهذا الدرس

هذا الدرس في المحادثة مبني على الفيديو “PCB 101 Academy - Learn how printed circuit boards are assembled”. أكثر الكلمات تكرارًا في الفيديو: machine, process, pcb, valor, test. يحتوي هذا الفيديو على 32 جملة و904 كلمة للتدرب على الترديد. مدة الكلام 6:13. يتكلم المتحدث بسرعة ثابتة، نحو 145 كلمة في الدقيقة، وهي سرعة مريحة للترديد. 78% فقط من الكلمات ضمن أكثر 3,000 كلمة شيوعًا في الإنجليزية، فالمفردات صعبة نسبيًا.

أهم المفردات في هذا الفيديو

15 كلمة من الفيديو تستحق التعلّم، مع النطق والمعنى:

الكلمة	النطق	المعنى
component اسم	/kəmˈpoʊ.nənt/	مُكَوِّن, جُزْء
oven اسم	/ˈʌ.vn̩/	فُرْن, تَنُّور
preparation اسم	/ˌpɹɛpəˈɹeɪʃ(ə)n/	تَحْضِير, إِعْدَاد
collect فعل	/ˈkɑlɪkt/	جَمَعَ
pasta اسم	/ˈpɑ.stə/	مَكَرُونَة, مَعْكَرُونَة
chamber اسم	/ˈt͡ʃeɪ̯mbɚ/	حُجْرَة
pin اسم	/pɪn/	دَبُّوس
implement فعل	/ˈɪmpləmənt/	نَفَّذَ, نَجَزَ
electronics اسم	/ɪˌlɛkˈtɹɑ.nɪks/	إِلِكْتْرُونِيَّات
inspection اسم	/ɪnˈspɛkʃən/	تَفَقُّد
probe اسم	/pɹoʊb/	مِسْبَار
connect فعل	/kəˈnɛkt/	رَبَطَ
accuracy اسم	/ˈæk.jɚ.ə.si/	دِقَّة
nail اسم	/neɪl/	ظُفْر, ضفر
printer اسم	/ˈpɹɪntɚ/	طَابِعَة

القواعد في هذا الفيديو

أكثر التراكيب التي يستخدمها المتحدث، مع العبارات نفسها من الفيديو:

التركيب	في الفيديو
المبني للمجهول be + اسم المفعول — التركيز على ما يحدث لا على من يفعله	are generated · is planned · was printed
المضارع التام have/has + اسم المفعول — حدث ماضٍ ما زال له أثر الآن	have implemented · have chosen · have been integrated
جمل الوصل who / which + جملة — معلومة إضافية عن شخص أو شيء	stencil which is · documentation which will · methods which are

نطق يحتاج إلى انتباه

يستخدم المتحدث 3 من الصيغ المختصرة، مثل I'm, they're, we've. انطقها بصيغتها القصيرة كما تسمعها.

أصوات “sh” و“zh”: preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, inspection /ɪnˈspɛkʃən/, measurement /ˈmɛʒ.ə.mənt/, documentation /ˌdɑkjəmɛnˈteɪʃən/, revision /ɹəˈvɪʒ.ən/
الكلمات الطويلة — انتبه لموضع النبر: preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, operator /ˈɑpəˌɹeɪtɚ/, electronics /ɪˌlɛkˈtɹɑ.nɪks/, electrical /ɪˈlɛktɹɪkəl/, accuracy /ˈæk.jɚ.ə.si/

أصوات يجدها متحدثو العربية صعبة:

/p/ — ليس /b/: انطقه مع نفخة هواء: component /kəmˈpoʊ.nənt/, preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, pasta /ˈpɑ.stə/, operator /ˈɑpəˌɹeɪtɚ/, pin /pɪn/
/v/ — ليس /f/: مع اهتزاز الأوتار الصوتية: oven /ˈʌ.vn̩/, sensitive /ˈsɛn.sɪt.ɪv/, divide /dɪˈvaɪd/, selective /səˈlɛktɪv/, verify /ˈvɛɹɪfaɪ/
تتابع الصوامت — لا تضف حركة بينها: component /kəmˈpoʊ.nənt/, preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, collect /ˈkɑlɪkt/, implement /ˈɪmpləmənt/, electronics /ɪˌlɛkˈtɹɑ.nɪks/

كيف تتدرب بهذا الفيديو

استمع إلى الفيديو كاملًا مرة واحدة دون أن تتكلم، ودوّن الكلمات التي لا تعرفها.
ردّد جملة جملة بالسرعة العادية، وكرّر كل جملة حتى يتطابق إيقاعك مع المتحدث.
سجّل صوتك وقارنه بالأصل، مع الانتباه إلى كلمات مثل component, oven, preparation.

ما هي تقنية التظليل الصوتي؟

التظليل الصوتي (Shadowing) تقنية تعلم لغة مدعومة علمياً، طُورت أصلاً لتدريب المترجمين الفوريين المحترفين. الطريقة بسيطة لكنها قوية: تستمع لصوت إنجليزي أصلي وتكرره فوراً بصوت عالٍ — كظل يتبع المتحدث بتأخير 1-2 ثانية. تُظهر الأبحاث تحسناً كبيراً في دقة النطق والتنغيم والإيقاع وربط الأصوات والاستماع والطلاقة.

تقنية الشادوينغ: اقرأ الدليل الكامل خطوة بخطوة →

تدريب Shadowing: PCB 101 Academy - Learn how printed circuit boards are assembled - تعلم التحدث بالإنجليزية عبر الفيديو

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