The intrinsic layer of the PIN diode is a layer without doping, and as a result this increases the size of the depletion region - the region between the P and N layers where there are no majority carriers. This change in the structure gives the PIN diode its unique properties.
Be aware of possible complications. By weakening your immune system, HIV can leave you vulnerable to certain cancers and infections. These infections are called opportunistic because they take the opportunity to attack you when your immune system is weak.
HIV may not cause symptoms early on. People who do have symptoms may mistake them for the flu or mono. Early symptoms of HIV are called acute retroviral syndrome. The symptoms may include: 1  Belly cramps, nausea, or vomiting. 2  Diarrhea. 3  Enlarged lymph nodes in the neck, armpits, and groin. 4  Fever. 5  Headache. 6  Muscle aches and joint pain. 7  Skin rash.