Why design review catches errors before fabrication in PCB Design - Formula Trace Breakdown

Sample Data

This data shows the steps in PCB design process and where errors are caught before fabrication.

Cell	Value
A1	Step
B1	Action
C1	Error Found
D1	Reason
A2	1
B2	Initial schematic design
C2	No
D2	Designer creates initial circuit
A3	2
B3	Design review meeting
C3	Yes
D3	Multiple eyes catch mistakes
A4	3
B4	Update design after review
C4	No
D4	Corrections applied
A5	4
B5	Final check before fabrication
C5	Yes
D5	Verification prevents costly errors

Formula Trace

IF(AND(B3="Design review meeting", C3="Yes"), "Error caught", "No error")

Step 1: B3 = "Design review meeting"

Step 2: C3 = "Yes"

Step 3: AND(B3="Design review meeting", C3="Yes")

Step 4: IF(TRUE, "Error caught", "No error")

Cell Reference Map

    A       B                     C         D
1 | Step | Action               | Error Found | Reason
2 | 1    | Initial schematic    | No          | Designer creates initial circuit
3 | 2    | Design review meeting| Yes         | Multiple eyes catch mistakes
4 | 3    | Update design        | No          | Corrections applied
5 | 4    | Final check          | Yes         | Verification prevents costly errors

References: B3 and C3 are used in the formula to check if error was caught during design review.

The formula checks cells B3 and C3 to determine if the design review meeting caught an error.

Result

    A       B                     C         D
1 | Step | Action               | Error Found | Reason
2 | 1    | Initial schematic    | No          | Designer creates initial circuit
3 | 2    | Design review meeting| Yes         | Multiple eyes catch mistakes
4 | 3    | Update design        | No          | Corrections applied
5 | 4    | Final check          | Yes         | Verification prevents costly errors

Result in E3: Error caught

The formula result 'Error caught' appears in cell E3, indicating the design review meeting step found an error.

Sheet Trace Quiz - 3 Questions

What does the formula check in cell B3?

A If the design is updated

B If an error was found

C If the step is 'Design review meeting'

D If fabrication is complete

Key Result

IF(condition, value_if_true, value_if_false) returns different text based on logical test.