Transformer, method for manufacturing transformer and chip

A method for manufacturing a transformer, the transformer comprising a primary coil, a secondary coil, a first primary tuning capacitor and a first secondary tuning capacitor, and the method comprising:

• arranging the first primary tuning capacitor and/or the first secondary tuning capacitor in an area enclosed by the primary coil and the secondary coil, the first primary tuning capacitor comprising more than one second primary tuning capacitor, and the first secondary tuning capacitor comprising more than one second secondary tuning capacitor;
• connecting the more than one second primary tuning capacitor in parallel, and connecting the more than one second secondary tuning capacitor in parallel;
• and
• forming a partially-shielded network or part of the partially-shielded network by the more than one second primary tuning capacitor and at least one wire between the more than one second primary tuning capacitor, and/or by the more than one second secondary tuning capacitor and at least one wire between the more than one second secondary tuning capacitor.