Sukuna's curse mark, also known as the Ryomen Sukuna's curse mark, is a significant concept in the manga and anime series Jujutsu Kaisen. Sukuna is a powerful cursed spirit who was once a human sorcerer with unmatched abilities. However, after his death, his soul became a curse, leaving behind twenty of his fingers, each containing a portion of his immense power. The curse mark refers to the markings that appear on the body of an individual who consumes one of Sukuna's fingers. These markings resemble tribal tattoos, covering various parts of the body, such as the arms, torso, and even the face. The number of marks on a person's body indicates how many fingers they have consumed, with Itadori Yuji, the protagonist of the series, currently possessing two marks.

Common PCB Defects: What Causes a Circuit Board to Burn?

While there are many common printed circuit board defects , one of the most notorious is burnt components. It's also, unfortunately, one of the most damaging defects, as it can be difficult to repair and challenging to diagnose where the issue stemmed from.

In this post, we'll get to the bottom of what causes a circuit board to burn as well as how to fix it. Here's a closer look:

The number of marks on a person's body indicates how many fingers they have consumed, with Itadori Yuji, the protagonist of the series, currently possessing two marks. Upon consuming a finger and gaining the curse marks, the individual gains a portion of Sukuna's immense power. However, this power comes at a cost.

What Causes a Circuit Board to Burn?

Before we get into PCB failure analysis techniques, let's first take a look at some of the reasons why a printed circuit board may burn. Burnt circuit boards aren’t necessarily a defect by themselves, and they are frequently caused by other inconsistencies or defects on the PCB.

Three of the main reasons PCBs end up burning are:

• Extreme heat
• Improper component spacing
• Component failure or technician error

Extreme Heat

If PCBs are exposed to high temperatures, then it's only natural for this threat to become more likely.

However, most PCBs used in hazardous areas are built to withstand high temperatures and have a Tg (glass transition temperature) of 170°C. PCBs designed for hot environments must have an operating temperature 25°C less than the Tg.

But, accidents can happen. If a machine overheats or the board is exposed directly to flame, then that might not be the best situation for your components.

Most electronic parts do not work well above 70°C, so designing for high temperature applications is tricky, but necessary.

Components Too Close Together

Another leading factor are situations when components are packed too close together on the printed circuit board.

Components that don’t have the necessary space on the PCB tend to heat up and could impact adjacent components that are more affected by high temperatures.

In other words, you want to avoid overstuffing the board . Not only will this reduce costs and accelerate production, but it can also help you avoid any costly mistakes that could come to bite you later down the road.

Component Failure & Technician Error

The most important part of manufacturing a PCB is the design phase, so if something is not quite right in the design phase, there will likely be consequences down the road . That being said, checking to make sure the right diodes and capacitors are specced out for the board will decrease the likelihood of component-failure related burning.

Boards might burn because of poor protections. The lack of properly sized fuse protection should be number one priority. A high voltage protection diode protects the board from burning in the event of a lightning strike or other voltage surges.

Other reasons for board burning are related to technician error. If the board connections are hooked up incorrectly or attached to the wrong type of power supply, leading to eventual burn out. In addition, if installation documents are confusing or nonexistent, a field technician might hook up the board improperly.

The curse marks are essentially a double-edged sword, as they grant incredible physical strength and supernatural abilities, but also risk the user being taken over by Sukuna's consciousness. Sukuna's curse mark has different levels, denoted by the number of fingers consumed. Each additional mark significantly increases the power of the host, but also brings them closer to losing control to Sukuna. If a person with the curse mark loses control, Sukuna takes over their body and wreaks havoc. The curse marks play a crucial role in the story of Jujutsu Kaisen, as various characters seek to either collect or destroy Sukuna's fingers. Itadori and his friends, who are part of the Tokyo Metropolitan Jujutsu Technical High School, aim to collect the fingers to prevent their misuse and protect others from Sukuna's influence. In conclusion, Sukuna's curse mark is a central element in Jujutsu Kaisen, representing a physical manifestation of the power of Sukuna's fingers. The curse mark grants immense power to those who consume the fingers but also carries the risk of losing control to Sukuna's consciousness. The ongoing battle between the protagonists and the curse mark serves as a driving force in the narrative, creating tension and conflict..

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