Handheld electronic device

A portable electronic device comprising:

• a housing;
• a display at least partially within the housing;
• a battery at least partially within the housing;
• a circuit board assembly at least partially within the housing and comprising:
• a first circuit board;
• a second circuit board;
• a wall structure between the first circuit board and the second circuit board and defining a periphery of the circuit board assembly;
• and
• an attachment member securing the circuit board assembly to the housing, the attachment member defining:
• a mounting portion soldered to the first circuit board and having a first thickness;
• a tab portion defining a hole and having a second thickness;
• and
• a joining portion extending from the mounting portion to the tab portion and having a third thickness different from at least one of the first thickness or the second thickness;
• and
• a fastener extending through the hole of the tab portion and securing the tab portion to a mounting post of the housing.

A mobile phone comprising:

• a housing;
• a display at least partially within the housing;
• a circuit board assembly at least partially within the housing and comprising:
• a first circuit board;
• a second circuit board;
• a wall structure supporting the second circuit board above the first circuit board and attached to the first circuit board and to the second circuit board;
• and
• a compliant brace coupled to an upper surface of the first circuit board and defining a beam portion positioned above the upper surface of the first circuit board, the beam portion configured to deflect to allow the circuit board assembly to move in at least one direction in response to a force experienced by the circuit board assembly;
• and
• a fastener extending through a hole defined through the beam portion and engaging a mounting feature of the mobile phone, thereby securing the circuit board assembly to the housing.