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How to check BGA minimum pitch using Allegro Skill language

BZ202408076026

I want to check BGA minimum pitch. If BGA pitch is less than 0.5mm, need to highlight these BGA in PCB layout. Does anyone have experience to write script to do the check?

Parents
  • 0

    안녕하세요.. 

    아래 코드가 도움이 되시길 바랍니다.

    1. BGA 핀 PITCH가 정사각형 모양일 경우만 해당됩니다.

    2. 정사각형이므로 핀 2개만 체크하여 결과를 출력합니다.

    3. 코드입니다.  님의 코드를 일부 인용했습니다.

    4. 명령어는 min_pitch_bga 이며

        체크할 pitch값을 수정하고 싶으시면 

       min_pitch_bga 0.9 를 사용하시면됩니다.

    axlCmdRegister("min_pitch_bga" 'min_pitch_bga ?cmdType "interactive")

    procedure(min_pitch_bga(@optional (argu_bga_pitch "0.5") "S")

    let((min_bga_pitch total_count symbols symbol_refdes sym_pins

    sym_pins all_pin_numbers a1_pin a2_pin a3_pin a4_pin a1_a2_dis a2_a3_dis a3_a4_dis)


    min_bga_pitch = atof(argu_bga_pitch)

    total_count = 0

    symbols = setof(e axlDBGetDesign() -> symbols e -> type == "PACKAGE" && length(e -> pins) > 10)

    foreach(symbol symbols

    symbol_refdes = symbol -> refdes

    sym_pins = symbol -> pins

    all_pin_numbers = sym_pins ~> number

    a1_pin = car(member("A1" all_pin_numbers))

    a2_pin = car(member("A2" all_pin_numbers))

    a3_pin = car(member("A3" all_pin_numbers))

    a4_pin = car(member("A4" all_pin_numbers))

    if(a1_pin && a2_pin then

    a1_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a1_pin)))

    a2_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a2_pin)))

    a1_a2_dis = axlDistance(a1_pin -> xy a2_pin -> xy)

    when(a1_a2_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a1_a2_dis)

    )

    else

    if(a2_pin && a3_pin then

    a2_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a2_pin)))

    a3_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a3_pin)))

    a2_a3_dis = axlDistance(a2_pin -> xy a3_pin -> xy)

    when(a2_a3_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a2_a3_dis)

    )

    else

    if(a3_pin && a4_pin then

    a3_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a3_pin)))

    a4_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a4_pin)))

    a3_a4_dis = axlDistance(a3_pin -> xy a4_pin -> xy)

    when(a3_a4_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a3_a4_dis)

    )

    )

    )

    )

    )

    printf("Min_BGA_Pitch(%f) - Checking Symbol Count = %d\n" min_bga_pitch total_count)

    )

    )

    이상입니다.

Reply
  • 0

    안녕하세요.. 

    아래 코드가 도움이 되시길 바랍니다.

    1. BGA 핀 PITCH가 정사각형 모양일 경우만 해당됩니다.

    2. 정사각형이므로 핀 2개만 체크하여 결과를 출력합니다.

    3. 코드입니다.  님의 코드를 일부 인용했습니다.

    4. 명령어는 min_pitch_bga 이며

        체크할 pitch값을 수정하고 싶으시면 

       min_pitch_bga 0.9 를 사용하시면됩니다.

    axlCmdRegister("min_pitch_bga" 'min_pitch_bga ?cmdType "interactive")

    procedure(min_pitch_bga(@optional (argu_bga_pitch "0.5") "S")

    let((min_bga_pitch total_count symbols symbol_refdes sym_pins

    sym_pins all_pin_numbers a1_pin a2_pin a3_pin a4_pin a1_a2_dis a2_a3_dis a3_a4_dis)


    min_bga_pitch = atof(argu_bga_pitch)

    total_count = 0

    symbols = setof(e axlDBGetDesign() -> symbols e -> type == "PACKAGE" && length(e -> pins) > 10)

    foreach(symbol symbols

    symbol_refdes = symbol -> refdes

    sym_pins = symbol -> pins

    all_pin_numbers = sym_pins ~> number

    a1_pin = car(member("A1" all_pin_numbers))

    a2_pin = car(member("A2" all_pin_numbers))

    a3_pin = car(member("A3" all_pin_numbers))

    a4_pin = car(member("A4" all_pin_numbers))

    if(a1_pin && a2_pin then

    a1_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a1_pin)))

    a2_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a2_pin)))

    a1_a2_dis = axlDistance(a1_pin -> xy a2_pin -> xy)

    when(a1_a2_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a1_a2_dis)

    )

    else

    if(a2_pin && a3_pin then

    a2_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a2_pin)))

    a3_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a3_pin)))

    a2_a3_dis = axlDistance(a2_pin -> xy a3_pin -> xy)

    when(a2_a3_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a2_a3_dis)

    )

    else

    if(a3_pin && a4_pin then

    a3_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a3_pin)))

    a4_pin = car(axlSelectByName("PIN" strcat(symbol_refdes "." a4_pin)))

    a3_a4_dis = axlDistance(a3_pin -> xy a4_pin -> xy)

    when(a3_a4_dis < min_bga_pitch

    axlHighlightObject(symbol)

    total_count = ++total_count

    printf("RefDes(%s) , Pitch(%f)\n" symbol_refdes a3_a4_dis)

    )

    )

    )

    )

    )

    printf("Min_BGA_Pitch(%f) - Checking Symbol Count = %d\n" min_bga_pitch total_count)

    )

    )

    이상입니다.

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