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.
Late-Stage Symptoms of HIV. As HIV advances into its later stages, your body's immune system is weakened and you may start experiencing other infections, which may result in the following symptoms: 1  Weight loss. 2  Dry cough. 3  Night sweats. 4  Fungal nail infection.