- HAKKO 394 for chip parts
- SMD feeder
- Various parts were mounted.
- HAKKO 394 and SMDfeeder are convenient
HAKKO 394 for chip parts
It is difficult to pick up chip parts with tweezers.
At the store, they are sold as they are on the reel or sold in pieces of about 20.
When mounting a part with tweezers, take the part out of the tape, separate it, and pick it up with tweezers.
When the parts are torn from the tape, the parts are front and back.
You have to turn over the parts on the back to make it face up and stick them with tweezers.
This is quite a hard work.
The parts on the back side need to be turned over, and even if you face the front side, you have to change the direction of up, down, left and right so that the polarities match.
When the diode is separated, it tends to be on the back side for some reason, and it doesn't turn easily.
Once the chip components have been separated in this way, it is necessary to orient both the front and back of the components and the top, bottom, left and right directions. This was a very troublesome task.
Chip parts are good manners in tapes
If the parts can be picked up in this state, it is not necessary to align the parts.
That's where the electric vacuum pick HAKKO 394 comes in.
The sucked parts can be taken to the mounting location and placed on the board.
This greatly reduces implementation time.
Secure part tape with masking tape
When the part tape touches something and moves, the part pops out or turns sideways due to the vibration, and eventually you have to align the direction.
Found on Thingiverse
It is a tool to fix the tape by putting the tape through it.
3D printer uses ANYCUBIC i3MEGA.
I recommend it because you can print pretty well at a reasonable price.
Insert the tape from this side.
How to use
When the film is pulled, the cover peels off and the orderly array of chip components comes out of the feeder.
Take out the parts using the electric vacuum pick HAKKO 394.
Various parts were mounted.
MAX10 FPGA Substrate
This article↓ is more detailed about positioning with pushpins.
Reflow soldering on a hot plate.
MAX5 CPLD substrate
This is a CPLD substrate.
If you pick the LED from the tape, the polarity is always the same, so it is very safe.
It is done by reflow soldering with a hot plate.
DCDC power board for electronic paper
Position the stencil and print the solder paste.
I use a point card for the printing squeegee, but I recommend a card with the same hardness as a credit card.
The solder paste was printed beautifully.
Since it is a DCDC circuit, there are many diodes and capacitors, and there are various values of resistance. It is really easy that you don't have to align the parts.
The mounting is finished. Even if the orientation of the part is slightly bent, the orientation will be automatically adjusted by the melted solder and the shape of the pattern.
I have been using low temperature lead-free solder since this time. It will melt from about 100 degrees Celsius, and it will be finished if you heat it up to about 150 degrees Celsius. The temperature is lower than that of normal solder, so the heating time can be shortened.
HAKKO 394 and SMDfeeder are convenient
The optional nozzle A 198 is required to absorb the chip components with the electric vacuum pick HAKKO 394. It may be better to buy several of them because they may touch the solder paste.